Buffalo TeraStation 5020 User Manual

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Network Attached Storage
TeraStation 5020
User Manual
Please make sure to read this manual before using and follow the procedures. If you have any inquiries about
the product, contact the number on the warranty statement or the packing box. Do not discard the included
documents, the warranty statement, or the packing box.
www.buffaloamericas.com
35022387-03
February 2023

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  • Page 1 Network Attached Storage TeraStation 5020 User Manual Please make sure to read this manual before using and follow the procedures. If you have any inquiries about the product, contact the number on the warranty statement or the packing box. Do not discard the included documents, the warranty statement, or the packing box.
  • Page 2: Table Of Contents

    Table of Contents Chapter 1 Notice ............10 Regulatory Compliance Information ........... 10 Warning Symbols and Graphical Icons on the Product ....10 Safety Precautions ................ 10 Chapter 2 Getting Started .......... 12 Diagrams ..................12 4-Bay and 8-Bay Desktop Models, 4-Bay Rackmount Model ....12 12-Bay Rackmount Model ...............15 Turning the TeraStation On and Off..........
  • Page 3 Importing User Information ..............29 Adding a Group ................29 Configuring Access Restrictions ..........32 Restricting Local User Access to Shared Folders ........32 Restricting AD Domain User Access to Shared Folders ......34 Restricting Access to Subfolders ............37 Enhancing Compatibility for macOS Client Access ....39 NFS ....................
  • Page 4 Using Settings ..................67 Checking Drives ................68 S.M.A.R.T..................69 Displaying S.M.A.R.T. Information ............70 Checking the Drive Condition ..............71 Formatting Drives ................. 71 Encrypting Drives ................73 Erasing Data on the TeraStation Completely ......73 Quotas .................... 74 Limits for Shared Folders ................74 Limits for LVM Volumes ................75 Using the TeraStation as an iSCSI Device ........
  • Page 5 Manually Creating a Snapshot ..............91 Accessing the Snapshots via SMB ............95 Restoring Snapshots ................97 Configuring Schedule Snapshot ............101 Configuring Snapshot Archive Settings ..........105 Backing Up Data on the TeraStation .......... 111 Backup Modes ..................112 Preparing a Backup Destination ............115 Configuring a Backup Job ..............117 If Backing Up from rsync-Compatible Devices to the TeraStation ..122 Restoring Backup Data ................123 Backup Logs for If Backup Fails ............127...
  • Page 6 Chapter 6 Cloud Services and Remote Access ..156 Synchronizing with Amazon S3 ..........156 Creating an Amazon S3 Job ..............156 Uploading Files to Amazon S3 ..............159 Synchronizing with Dropbox ............. 163 Creating a Dropbox Sync Job ..............163 Changing Job Settings ................166 Creating a Shared Link (Windows Only) ..........169 Using Microsoft Azure for Data Preservation ......
  • Page 7 Chapter 8 Settings Backup/Restoration ....221 Saving and Applying Settings ............ 221 Saving Settings ..................222 Applying Settings ..................222 Transferring Another Buffalo NAS Device’s Settings ....223 Creating a Config File (.nas_config) ............224 Transferring Settings ................224 Restoring Factory Defaults ............225 Initializing from Settings ..............225...
  • Page 8 Chapter 10 Advanced Features ........ 240 Email Notification ............... 240 Enabling Email Notification ..............240 Changing Events for Email Reports ............241 Sleep Mode .................. 242 UPS (Uninterruptible Power Supply) ......... 244 One PSU Device Is Installed ..............245 Two PSU Devices Are Installed ..............246 Automatic Shutdown If Power Supply Fails ......
  • Page 9 Drive Replacement for a JBOD ..............263 Drive Replacement for a Hot Spare ............263 Replacing a Defective Drive on Models Other Than the TS51220RH .................. 263 Drive Replacement for a Redundant RAID Array (TeraStation Is On) 264 Drive Replacement for a Redundant RAID Array (TeraStation Is Off) 267 Drive Replacement for a RAID 0 Array ..........268 Drive Replacement for a JBOD ..............269 Drive Replacement for a Hot Spare ............269...
  • Page 10 Chapter 13 Appendix ..........281 LCD Panel ..................281 Modes .....................281 Errors .......................282 Notices ....................283 Information Events ................284 Default Settings ................286 Specifications ................287...
  • Page 11: Chapter 1 Notice

    Chapter 1 Notice Chapter 1 Notice Regulatory Compliance Information For Customers in the United States This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
  • Page 12 Chapter 1 Notice (4) The device can only be used in a fixed location, such as a telecommunication center or a dedicated computer room. When you install the device, ensure that the protective earthing connection of the socket-outlet is verified by a technician.
  • Page 13: Chapter 2 Getting Started

    Chapter 2 Getting Started Chapter 2 Getting Started Diagrams Depending on the number or type of drives in the unit, the model name will be different. Check the sticker on the packing box for your unit’s model name. 4-Bay and 8-Bay Desktop Models, 4-Bay Rackmount Model TS5420DN TS5420RN 3 4 5 6 7 13...
  • Page 14 Chapter 2 Getting Started TS5820DN 2 3 4 5 6 7 Power Button Press this button to power on the TeraStation. To power off the TeraStation, press and hold down the power button for five seconds. If the TeraStation beeps, pressing and holding this button for a short period will stop the beeping. Power LED When the TeraStation is on, the LED glows green.
  • Page 15 Chapter 2 Getting Started Drive Lock Open the front panel with the key to replace drives or access the init button. Reset Button Press and hold down this button with something pointed to initialize the TeraStation’s admin username and password, two-factor authentication settings, IP settings, SSL, and service port restriction settings to their factory default values.
  • Page 16: 12-Bay Rackmount Model

    Chapter 2 Getting Started Link/Act LED Glows blue when the TeraStation is connected to a network at 10 Gbps. It blinks when the connection is experiencing activity. 12-Bay Rackmount Model TS51220RH 16 17 18 19 Power Button Press this button to power on and off the TeraStation. If the TeraStation beeps, pressing and holding this button for a short period will stop the beeping.
  • Page 17 Chapter 2 Getting Started Reset Button Press and hold down this button with something pointed to initialize the TeraStation’s admin username and password, two-factor authentication settings, IP settings, SSL, and service port restriction settings to their factory default values. The effects of this button can be changed in Settings. During initialization, the TeraStation will beep and the message will appear as a notification.
  • Page 18: Turning The Terastation On And Off

    Chapter 2 Getting Started Note: To communicate at up to 10 Gbps, all network devices must be compatible with 10GbE. LAN Port 4 (10GbE) Connect an Ethernet cable to use the port for your network. The port supports communicating at max. 10 Gbps if using the included Ethernet or category 6A cable.
  • Page 19: Opening Settings

    Chapter 2 Getting Started Opening Settings Double-click the NAS Navigator2 icon (   ) to start NAS Navigator2. Right-click your TeraStation’s icon and select Open Settings. For macOS, select the TeraStation’s icon while holding down the control key, then select Open Settings. Enter the username and password, then click OK.
  • Page 20 Chapter 2 Getting Started • Click Secure Connection to log in using an encrypted connection. For detailed information about encrypted connections, refer to the “Encrypting Data Transmission” section in chapter 7. If you did not enable two-factor authentication, skip to step 5. Otherwise, refer to the authenticator app on your mobile device for the verification code.
  • Page 21: Configuring Settings Via Setup Wizard

    Chapter 2 Getting Started Username Password Settings Available If a user is assigned as an administrator, all settings are available. If assigned to a power users group, creating Your username Your password or editing shared folders, users, and groups is available. If assigned to a general users group, only changing the password of logged-in users is available.
  • Page 22: Checking The Device Information From Dashboard

    Chapter 2 Getting Started Click Execute Wizard. The “Confirm Operation” screen will open. Enter the confirmation number, then click OK. Follow the procedure on the screen and finish the setup wizard. The process is complete once you close the wizard. Checking the Device Information from Dashboard When opening the Settings interface, the Dashboard page will appear first.
  • Page 23: Shutting Down Or Restarting The Terastation From Settings

    Chapter 2 Getting Started Shutting Down or Restarting the TeraStation from Settings You can shut down or restart the TeraStation remotely. Follow the procedure below to remotely shut down or restart the TeraStation from Settings. Log in to Settings using NAS Navigator2. Click at the top-right of Settings and choose Shut Down or Restart.
  • Page 24: Chapter 3 File Sharing

    Chapter 3 File Sharing Chapter 3 File Sharing You can create users and groups to access the shared folders on the TeraStation and configure access restrictions to limit access to key data. Configuring Shared Folders Adding a Shared Folder From Settings, click File Sharing. Click the settings icon ( ...
  • Page 25 Chapter 3 File Sharing Configure the desired settings, then click OK. The process is complete once you close the confirmation window that appears. Notes: • Names may contain up to 27 alphanumeric characters, hyphens (-), and underscores (_). Multibyte characters are supported.
  • Page 26: Recycle Bin

    Chapter 3 File Sharing ①②③④⑤⑥⑦⑧⑨⑩⑪⑫⑬⑭⑮⑯⑰⑱⑲⑳ⅠⅡⅢⅣⅤⅥⅦⅧⅨⅩ ⅰⅱⅲⅳⅴⅵⅶⅷⅸⅹ㎜㎝㎞㎎㎏㏄㎡№㏍℡㊤㊥㊦㊧㊨㈱㈲㈹㍾㍽㍼㍻㍉㌔㌢㍍㌘㌧㌃㌶㍑㍗㌍㌦㌣㌫㍊ ㌻¦'"〝〟∮Σ∟⊿ 纊褜鍈銈蓜俉炻昱棈鋹曻彅丨仡仼伀伃伹佖侒侊侚侔俍偀倢俿倞偆偰偂傔僴僘兊兤冝冾凬刕劜劦勀勛匀匇匤 卲厓厲叝﨎咜咊咩哿喆坙坥垬埈埇﨏塚增墲夋奓奛奝奣妤妺孖寀甯寘寬尞岦岺峵崧嵓﨑嵂嵭嶸嶹巐弡弴彧德 忞恝悅悊惞惕愠惲愑愷愰憘戓抦揵摠撝擎敎昀昕昻昉昮昞昤晥晗晙晴晳暙暠暲暿曺朎朗杦枻桒柀栁桄棏﨓楨 﨔榘槢樰橫橆橳橾櫢櫤毖氿汜沆汯泚洄涇浯涖涬淏淸淲淼渹湜渧渼溿澈澵濵瀅瀇瀨炅炫焏焄煜煆煇凞燁燾犱 犾猤猪獷玽珉珖珣珒琇珵琦琪琩琮瑢璉璟甁畯皂皜皞皛皦益睆劯砡硎硤硺礰礼神祥禔福禛竑竧靖竫箞精絈絜 綷綠緖繒罇羡羽茁荢荿菇菶葈蒴蕓蕙蕫﨟薰蘒﨡蠇裵訒訷詹誧誾諟諸諶譓譿賰賴贒赶﨣軏﨤逸遧郞都鄕鄧釚 釗釞釭釮釤釥鈆鈐鈊鈺鉀鈼鉎鉙鉑鈹鉧銧鉷鉸鋧鋗鋙鋐﨧鋕鋠鋓錥錡鋻﨨錞鋿錝錂鍰鍗鎤鏆鏞鏸鐱鑅鑈閒隆 﨩隝隯霳霻靃靍靏靑靕顗顥飯飼餧館馞驎髙髜魵魲鮏鮱鮻鰀鵰鵫鶴鸙黑畩秕緇臂蘊訃躱鐓饐鷯 • File and folder names may contain up to 255 single-byte characters. • Folder and workgroup names whose names contain multibyte characters may not be displayed correctly. •...
  • Page 27: Hidden Shares

    Chapter 3 File Sharing Notes: • Configure the share attribute only through Settings. Configuring folder attributes through Windows is not supported and may cause unexpected behavior. • To set a read-only share or USB drive to another attribute, follow the procedure above and change the attribute in step 2 from “Read only”...
  • Page 28 Chapter 3 File Sharing Click Create.
  • Page 29 Chapter 3 File Sharing Enter the desired settings, then click OK. The process is complete once you close the confirmation window that appears. Notes: • Usernames may contain up to 128 alphanumeric characters, hyphens (-), underscores (_), periods (.), and the symbols ! # &...
  • Page 30: Importing User Information

    Chapter 3 File Sharing sasl, shadow, shutdown, snmp, splx, src, ssh, sshd, staff, statd, sudo, sync, sys, syslog, tape, tmhttpd, tty, users, utmp, uucp, video, voice, winbindd_priv, www, www-data Importing User Information You can import users in File Sharing > Users by clicking Import CSV File. An example format for user data: Username (required), password (required), and user description (optional).
  • Page 31 Chapter 3 File Sharing Click Create.
  • Page 32 Chapter 3 File Sharing Enter the desired settings, then click OK. The process is complete once you close the confirmation window that appears. Notes: • Group names may contain up to 20 alphanumeric characters, hyphens (-), underscores (_), and periods (.). The first character should not be a symbol.
  • Page 33: Configuring Access Restrictions

    Chapter 3 File Sharing Configuring Access Restrictions You may restrict access for specific shared folders, including external USB drives. Notes: • Configure access restrictions only through Settings. Configuring access restrictions through Windows is not supported and may cause unexpected behavior. •...
  • Page 34 Chapter 3 File Sharing Click the shared folder that you want to set access restrictions for. Click the Access Restrictions tab. Enable “Access Restrictions for Shared Folders”. Select the level of access for the user or group and click OK. : Read and write : Read-only : No access...
  • Page 35: Restricting Ad Domain User Access To Shared Folders

    Chapter 3 File Sharing Note: The example above shows access restrictions by users. To restrict access by group, click the Local Groups tab and select group permissions. The process is complete once you close the confirmation window that appears. Note: For an access-restricted shared folder, if you change the access restrictions of all users and groups from read and write or read-only to access prohibited from the user or group list page in Settings, that shared folder can only be accessed by admin users and groups.
  • Page 36 Chapter 3 File Sharing Select “Active Directory”, then click Next. Enter the domain controller information and click Search. The domain controller on the same network will be detected and required settings will be populated into each field automatically. Alternatively, you can also manually enter the settings.
  • Page 37 Chapter 3 File Sharing Click the settings icon (   ) to the right of “Folder Setup”. Click the shared folder that you want to set access restrictions for. Click the Access Restrictions tab. Enable “Access Restrictions for Shared Folders”. Select the level of access for the user or group and click OK. : Read and write : Read-only : No access...
  • Page 38: Restricting Access To Subfolders

    Chapter 3 File Sharing • If FTP is enabled, local and domain group access restrictions from the AD network will not work. Use user access restrictions instead. • For an access-restricted shared folder, if you change the access restrictions of all users and groups from read and write or read-only to access prohibited from the user or group list page in Settings, that shared folder can only be accessed by admin users and groups.
  • Page 39 Chapter 3 File Sharing Click the shared folder that you want to set access restrictions for. If either or both of the “FTP” and “SFTP” checkboxes for “LAN Protocol Support” are selected, clear them all. Click the Option 2 tab. Enable “Access Restrictions for Subfolders”...
  • Page 40: Enhancing Compatibility For Macos Client Access

    Chapter 3 File Sharing You may also configure access permissions for domain users and groups. You should have the TeraStation join your Active Directory domain before configuring access permissions from File Explorer. Notes: • If enabling subfolders’ access restrictions for a USB drive, the drive should be formatted using Btrfs, XFS, or ext3. •...
  • Page 41: Nfs

    The process is complete when the file sharing menu list is displayed. Note: Buffalo’s customer support will help configure the NFS settings on your TeraStation, and will support VMware and Windows clients but will not provide support for configuring your Linux or other UNIX clients. There are various types of UNIX and the procedures for configuring NFS with them will vary considerably.
  • Page 42 Chapter 3 File Sharing Choose the shared folder that will be accessible from the NFS client. Under “LAN Protocol Support”, select the “NFS” checkbox on the Basic tab and click OK. Note the NFS path. It will be used later for accessing data from an NFS client. Click Close.
  • Page 43 Chapter 3 File Sharing Click the Clients tab. Click Add.
  • Page 44 Chapter 3 File Sharing Enter the hostname and IP address of the NFS client, then click OK. You should add all NFS clients to access the shared folder. Click the Rules tab.
  • Page 45 Chapter 3 File Sharing Click Create. Choose the folder to restrict access to, and enter the clients that will have restricted access into the “Hosts” field. Clients may be entered by hostname, IP address, or IP address range. Wildcards are supported. Separate multiple entries with commas.
  • Page 46: Nfs Mount Commands

    Chapter 3 File Sharing Notes: • To restrict NFS access to a specific network or client, navigate to File Sharing > NFS > Services and click Edit. Enter the address of the network. For example, if your local network subnet has a router at 192.168.1.1 and clients with IP addresses in the range from 192.168.1.2 through 192.168.1.48 with subnet mask 255.255.255.0, then the “Public Network Address”...
  • Page 47 Chapter 3 File Sharing Click the shared folder for offline files. Choose either “Manual caching of documents”, “Automatic caching of documents”, or “Automatic caching of programs and documents” on the Option 1 tab, then click OK. Manual caching of documents: User selects files that are cached. Automatic caching of documents: Opened files can be cached locally for offline use.
  • Page 48 Chapter 3 File Sharing From File Explorer, right-click the icon of the shared folder on the TeraStation for which you have set the offline feature, then click Always available offline. The process is complete when the shared folder icon is changed to When the configuration of offline settings and synchronization settings is finished, synchronization will begin.
  • Page 49: Chapter 4 Raid Modes And Drive Management

    Chapter 4 RAID Modes and Drive Management Chapter 4 RAID Modes and Drive Management Available RAID Modes The TeraStation supports multiple types of RAID. The type of RAID arrays available for use depends on how many drives are installed on your TeraStation. Notes: •...
  • Page 50: Working With Raid Arrays

    Chapter 4 RAID Modes and Drive Management RAID 0 A RAID 0 array combines two or more drives into a single array. The usable space is equal to the total capacity of all drives in the array. This simple RAID mode offers faster performance than RAID modes that include parity. If a single drive in the array fails, then all data in the array will be lost.
  • Page 51: Creating A Raid Array

    Chapter 4 RAID Modes and Drive Management Click Delete RAID Array. The “Confirm Operation” screen will open. Enter the confirmation number, then click OK. The process is complete once you close the confirmation window that appears. When the drives are put into JBOD, next create a shared folder by referring to the “Adding a Shared Folder”...
  • Page 52: Shutting Down The Terastation Automatically If An Error Occurs

    Chapter 4 RAID Modes and Drive Management Choose a RAID array. Select a RAID mode and the drives to be used, then click Create RAID Array. Depending on the RAID configuration, the message will appear. Read the message carefully and click Yes to proceed.
  • Page 53 Chapter 4 RAID Modes and Drive Management For the TS51220RH TeraStation model users, also enabling email notifications is recommended if auto shutdown is enabled. LEDs on the TeraStation will extinguish when it shuts down so the failed drive will not be identified. In such a case, you can confirm the failed drive number in the notification email.
  • Page 54: Rebuilding The Raid Array Automatically For The Ts51220Rh

    Chapter 4 RAID Modes and Drive Management Change the “Error Behavior” option to “Shut down” and click OK. The process is complete once you close the confirmation window that appears. Rebuilding the RAID Array Automatically for the TS51220RH If auto RAID rebuild is enabled, RAID arrays will rebuild automatically after a failed drive is replaced. You may enable or disable auto RAID rebuild by following the procedure below.
  • Page 55 Chapter 4 RAID Modes and Drive Management Click Options. Click Edit. Change the “Automatically Rebuild if New Drive Is Detected” option to “Yes” and click OK.
  • Page 56: Configuring Actions For If A Drive Used For The Raid Array Has Not Been Detected

    Chapter 4 RAID Modes and Drive Management Read the message carefully and select the checkbox, then click OK. The process is complete once you close the confirmation window that appears. Configuring Actions for If a Drive Used for the RAID Array Has Not Been Detected You can configure actions to be taken by the TeraStation if a drive used for the RAID array cannot be mounted when booting.
  • Page 57 Chapter 4 RAID Modes and Drive Management Click Options. Click Edit. Change the “Drive Detection Window” option to “Don't prompt when a drive could not be detected” and click The process is complete once you close the confirmation window that appears. If the confirmation screen is not set to appear, an undetected drive will automatically be dismounted from the TeraStation.
  • Page 58: Configuring A Hot Spare

    Chapter 4 RAID Modes and Drive Management Conditions and Corrective Actions If Undetected Drives Aren’t Displayed Properly Even when you configure the NAS to show the confirmation screen if a drive being used for the RAID array cannot be mounted, undetected drives will not be displayed under the following conditions. If you are using any of the RAID array configurations below, follow the corrective procedure.
  • Page 59 Chapter 4 RAID Modes and Drive Management For example, there are two arrays with RAID configured and the first array is selected to configure the hos spare in the following procedure, the hot spare can also be used by another array if a drive on the second RAID array fails. From Settings, click Storage.
  • Page 60: Managing A Raid Array Without Deleting Data

    Chapter 4 RAID Modes and Drive Management Read the message carefully and select the checkbox, then click OK. The “Confirm Operation” screen will open. Enter the confirmation number, then click OK. The process is complete once you close the confirmation window that appears. Note: To turn the hot spare back to a normal drive, choose Set as a normal drive.
  • Page 61 Chapter 4 RAID Modes and Drive Management Insert the new drive (sold separately) into the empty slot with the lock mechanism remaining open and swing the lock back down until it clicks into place. Close the front cover. When the drive is recognized, the status LED will flash red and the message will appear as a notification.
  • Page 62 Chapter 4 RAID Modes and Drive Management The “Confirm Operation” screen will open. Enter the confirmation number, then click OK. The process is complete once you close the confirmation window that appears. Drives That Are Currently in JBOD To use RMM for drives in JBOD, you must have at least two drives available in JBOD. Follow the procedure below. From Settings, click Storage.
  • Page 63 Chapter 4 RAID Modes and Drive Management Set the RAID mode to “RAID 1”. Select the “Add a drive to a RAID array with RMM. Your data will be preserved. ” checkbox. Select the drive whose data will be saved from the drop-down list. Select the drive to add to the RAID array.
  • Page 64: Raid Scanning

    Chapter 4 RAID Modes and Drive Management Choose a RAID array. Select one drive to add to the RAID array. If changing the RAID mode, choose the desired mode for the array from the drop-down list. Otherwise, keep the current RAID mode as is. Click Change RAID Array.
  • Page 65: Configuring Low Drive Space Alerts

    Chapter 4 RAID Modes and Drive Management Move the RAID scanning switch (   ) to the position to enable RAID scanning. Click the settings icon (   ) to the right of “RAID Scanning”. Click Edit. Select when to run the scan and click OK. The process is complete once you close the confirmation window that appears.
  • Page 66: Adding An External Drive

    Chapter 4 RAID Modes and Drive Management Click the settings icon (   ) to the right of “Drives”. Click Free Space Alert. Enable “Free Space Alert” and enter the threshold value, then click OK. The process is complete once you close the confirmation window that appears. The free space alert is now enabled.
  • Page 67: Dismounting Drives

    Btrfs Connecting to this TeraStation. Connecting to another Buffalo NAS device. Connecting to another Buffalo NAS device. XFS is recommended because the Ext3*1 more files stored in one folder, the slower the performance. The available capacity will be less than the area formatted to XFS.
  • Page 68: Using The Function Button

    Chapter 4 RAID Modes and Drive Management Notes: • Do not dismount internal drives while a RAID array is rebuilding or RMM is being configured. If you do, data on the drives may be lost. • To dismount an RDX cartridge from an RDX dock, first perform the dismount process either using the function button or from Settings, then press the eject button on the dock to disconnect the cartridge.
  • Page 69: Checking Drives

    Chapter 4 RAID Modes and Drive Management Select the drive to dismount and click Dismount Drive. The “Confirm Operation” screen will open. Enter the confirmation number, then click OK. The process is complete once you close the confirmation window that appears. When the dismounting process is finished, it is safe to unplug the drive.
  • Page 70 Chapter 4 RAID Modes and Drive Management Select the drive or array to test, then click Check Drive. Click Check. You have the option of deleting information files from macOS during the check if desired. Either the message for RAID arrays, the message for drives, or the message for USB drives will appear as a notification.
  • Page 71: Displaying S.m.a.r.t. Information

    Chapter 4 RAID Modes and Drive Management Displaying S.M.A.R.T. Information From Settings, click Storage. Click the settings icon (   ) to the right of “Drives”. Select a drive to check and click S.M.A.R.T.
  • Page 72: Checking The Drive Condition

    Chapter 4 RAID Modes and Drive Management The process is complete when the S.M.A.R.T. information for the drive is displayed. Different information may be displayed depending on the brand of drives on your TeraStation. Critical attributes are displayed in bold. Checking the Drive Condition Attributes with the worst value that is equal to or less than the threshold value may be significant.
  • Page 73 Chapter 4 RAID Modes and Drive Management Click the settings icon (   ) to the right of “Drives” to format an internal drive or “USB Drives” to format an external drive. Select the drive or array to format, then click Format Drive. Select a format type, then click Format.
  • Page 74: Encrypting Drives

    Chapter 4 RAID Modes and Drive Management Notes: • Do not turn off or disconnect power to the TeraStation while formatting a drive. • For drives that are 2.2 TB or larger, make sure that the “GPT partition” checkbox is selected. Encrypting Drives Internal drives (and arrays) can be encrypted with 256-bit AES during formatting.
  • Page 75: Quotas

    Chapter 4 RAID Modes and Drive Management Click Erase TeraStation. The “Confirm Operation” screen will open. Enter the confirmation number, then click OK. The complete format process will begin. The process is complete when the TeraStation shuts down automatically. To power on the TeraStation, press the power button. Note: If you remove a drive and then erase all data on the TeraStation, the error along with the number of the removed drive will appear as a notification.
  • Page 76: Limits For Lvm Volumes

    Chapter 4 RAID Modes and Drive Management Click the shared folder that you want to give a quota. Click the Option 1 tab. Enable “Quota” and choose the alert and the maximum amount of space the user will be allowed to use, then click OK.
  • Page 77 Chapter 4 RAID Modes and Drive Management From Settings, click Storage. Click the settings icon (   ) to the right of “LVM”. Select the drive or array where the volume will be located and click Enable LVM. Read the message carefully and click Yes. The “Confirm Operation”...
  • Page 78 Chapter 4 RAID Modes and Drive Management Click Edit under “NAS Volume”. Click Create Volume.
  • Page 79: Using The Terastation As An Iscsi Device

    Chapter 4 RAID Modes and Drive Management Enter a volume name and size, then click OK. The process is complete once you close the confirmation window that appears. The usable capacity can now be limited by selecting the volume that you created for “Drive/Array” on the Basic tab when creating a shared folder.
  • Page 80: Creating An Iscsi Volume

    Chapter 4 RAID Modes and Drive Management Connection Tool The Microsoft iSCSI Software Initiator is already installed on your computer. You don’t need to download and install Creating an iSCSI Volume To use the TeraStation as an iSCSI drive, create a volume first. Configure the TeraStation as described below. Notes: •...
  • Page 81 Chapter 4 RAID Modes and Drive Management Click Create Volume. Enter a volume name, volume description, drive or array where a volume will be created, and volume size, then click OK. If you enabled LVM for the target drive or array, or selected “File I/O” for the “Backstore” option, the volume size that you specify here can be changed later.
  • Page 82: Connecting Volumes

    Chapter 4 RAID Modes and Drive Management Read the message carefully and click OK. The process is complete once you close the confirmation window that appears. Notes: • Do not use the TeraStation’s whole capacity for iSCSI volumes. Some features need free space in order to function. If there is no available free space, it may cause unexpected behavior.
  • Page 83: Formatting Volumes

    Chapter 4 RAID Modes and Drive Management The process is complete when the status of the selected volume is displayed as “Connected” on the iSCSI initiator. You can also check that the volume status is “Connected” in Settings by navigating to Storage > iSCSI. Using with Multiple Computers If the TeraStation is divided into multiple volumes (or drives), it can be used with multiple computers.
  • Page 84 Chapter 4 RAID Modes and Drive Management Click the settings icon (   ) to the right of “iSCSI”. Click the Security tab. Click Edit. Enable “Authentication” and enter the target CHAP name and secret, then click OK. Note: To enable mutual authentication in addition to target CHAP name and secret authentication, select the “Enable”...
  • Page 85 Chapter 4 RAID Modes and Drive Management Configuring for Individual Volumes Follow the procedure below to configure access restrictions for individual volumes. From Settings, click Storage. Click the settings icon (   ) to the right of “iSCSI”. Click the volume to enable access restrictions.
  • Page 86: Connecting Access-Restricted Volumes

    Chapter 4 RAID Modes and Drive Management Enable “Authentication” and enter the target CHAP name and secret, then click OK. Note: To enable mutual authentication in addition to target CHAP secret authentication, select the “Enable” checkbox for “Mutual Authentication” and enter the initiator CHAP secret. The process is complete once you close the confirmation window that appears.
  • Page 87: Expanding Volume Sizes

    Chapter 4 RAID Modes and Drive Management Click OK, then click OK again. The iSCSI volumes on the TeraStation will be listed under “Discovered targets” on the Targets tab. Select the desired volume to connect and click Connect. The process is complete when the status of the selected volume is displayed as “Connected” on the iSCSI initiator.
  • Page 88 Chapter 4 RAID Modes and Drive Management Click the settings icon (   ) to the right of “iSCSI”. Select the volume to expand. Enter the desired volume size to add and click OK.
  • Page 89: Deleting Volumes

    Chapter 4 RAID Modes and Drive Management The process is complete once you close the confirmation window that appears. Deleting Volumes To delete an existing volume, follow the procedure below. Note: Deleting a volume will erase all data on the volume. Back up the data before deleting the volume. From Settings, click Storage.
  • Page 90: Enabling The Isns Protocol

    Chapter 4 RAID Modes and Drive Management The “Confirm Operation” screen will open. Enter the confirmation number, then click OK. The process is complete once you close the confirmation window that appears. Enabling the iSNS Protocol By enabling the iSNS protocol on the TeraStation, you can register an iSCSI target (volume) to an iSNS server and use it to manage the registered targets.
  • Page 91: Advanced Iscsi Volume Settings

    Chapter 4 RAID Modes and Drive Management Enable “iSNS” and enter the IP address or hostname of the iSNS server, then click OK. The process is complete once you close the confirmation window that appears. Advanced iSCSI Volume Settings You can configure the following advanced parameters for each iSCSI volume. Advanced Parameter Description HeaderDigest...
  • Page 92: Chapter 5 Backup

    Application for iSCSI Volume Snapshots To create an iSCSI volume snapshot in the environment where the iSCSI volumes on the TeraStation are connected using a virtual machine, we recommend using the Buffalo-offered Windows Server application “Snapshot Agent for TeraStation”, available from the Buffalo website.
  • Page 93 Chapter 5 Backup Click the settings icon (   ) to the right of “Folder Setup”. Click the number under “Snapshot” for the shared folder on the shared folder list.
  • Page 94 Chapter 5 Backup Click Create. Select or clear the “Lock” checkbox to determine whether the created snapshot will be locked or unlocked and enter a short description, then click OK. A locked snapshot cannot be deleted due to auto-archiving. The process is complete once you close the confirmation window that appears. For iSCSI Volumes From Settings, click Storage.
  • Page 95 Chapter 5 Backup Click the settings icon (   ) to the right of “iSCSI”. Select the checkbox for the target iSCSI volume and click Show Snapshot List. Click Create.
  • Page 96: Accessing The Snapshots Via Smb

    Chapter 5 Backup Select or clear the “Lock” checkbox to determine whether the created snapshot will be locked or unlocked and enter a short description, then click OK. A locked snapshot cannot be deleted due to auto-archiving. The process is complete once you close the confirmation window that appears. Accessing the Snapshots via SMB From a Windows computer, you can access snapshots using the “Restore previous versions”...
  • Page 97 Chapter 5 Backup Click the shared folder to access snapshots from the computer. Click the Option 2 tab. Enable “Shadow Copy” and click OK. From the computer, access the TeraStation using File Explorer and right-click the shared folder to view snapshots.
  • Page 98: Restoring Snapshots

    Chapter 5 Backup The entire history of created snapshots will appear. Select the snapshot and the action to be taken for the snapshot. Restoring Snapshots To restore the created snapshots to the shared folder or the iSCSI volume, follow the procedure below. For Shared Folders Note: When restoring snapshots, the file sharing service will restart so shared folders will become inaccessible temporarily.
  • Page 99 Chapter 5 Backup Click the number under “Snapshot” for the shared folder on the shared folder list. Select the checkbox for the target snapshot and then click Restore.
  • Page 100 Chapter 5 Backup A new snapshot will be created before restoring the snapshot. Select or clear the “Lock” checkbox to determine whether the created snapshot will be locked or unlocked and enter a short description, then click OK. A locked snapshot cannot be deleted due to auto-archiving.
  • Page 101 Chapter 5 Backup Select the checkbox for the target iSCSI volume and click Show Snapshot List. Select the checkbox for the target snapshot and then click Restore.
  • Page 102: Configuring Schedule Snapshot

    Chapter 5 Backup A new snapshot will be created before restoring the snapshot. Select or clear the “Lock” checkbox to determine whether the created snapshot will be locked or unlocked and enter a short description, then click OK. A locked snapshot cannot be deleted due to auto-archiving.
  • Page 103 Chapter 5 Backup Click the number under “Snapshot” for the shared folder on the shared folder list. Click Advanced Settings at the lower-left corner of the window.
  • Page 104 Chapter 5 Backup Click the Schedule tab. Enable “Schedule Snapshot”. Select the day of the week and time for when to have a snapshot automatically created, then click OK. The process is complete once you close the confirmation window that appears. For iSCSI Volumes From Settings, click Storage.
  • Page 105 Chapter 5 Backup Select the checkbox for the target iSCSI volume and click Show Snapshot List. Click Advanced Settings at the lower-left corner of the window.
  • Page 106: Configuring Snapshot Archive Settings

    Chapter 5 Backup Click the Schedule tab. Enable “Schedule Snapshot”. Select the day of the week and time when to automatically create a snapshot, then click OK. The process is complete once you close the confirmation window that appears. Configuring Snapshot Archive Settings If you regularly create snapshots, it will use up capacity on the TeraStation.
  • Page 107 Chapter 5 Backup Click the number under “Snapshot” for the shared folder on the shared folder list. Click Advanced Settings at the lower-left corner of the window.
  • Page 108 Chapter 5 Backup Click the Auto Archive tab. Select the rule to keep the snapshots and click OK. For more detailed information on archiving snapshots, refer to the “Archive Rules for Snapshots” section below.
  • Page 109 Chapter 5 Backup Select either Yes or No to apply the new snapshot archive settings to the existing snapshots. The process is complete once you close the confirmation window that appears. For iSCSI Volumes From Settings, click Storage. Click the settings icon (   ) to the right of “iSCSI”.
  • Page 110 Chapter 5 Backup Click Advanced Settings at the lower-left corner of the window. Click the Auto Archive tab.
  • Page 111 Chapter 5 Backup Select the rule to keep the snapshots and click OK. For more detailed information on archiving snapshots, refer to the “Archive Rules for Snapshots” section below. Select either Yes or No to apply the new snapshot archive settings to the existing snapshots. The process is complete once you close the confirmation window that appears.
  • Page 112: Backing Up Data On The Terastation

    You can back up the TeraStation folders to another shared folder on the same TeraStation, a connected USB drive, or a shared folder on another Buffalo NAS device, either on the same network or on another network. For best results,...
  • Page 113: Backup Modes

    *4 If the “Inherit subfolders' access restrictions” option is selected when creating a backup job, the device should be a Buffalo NAS device whose subfolders’ access restrictions is available. Overwrite (Incremental) The first backup job runs like a full backup. As each subsequent backup job runs, only files that have been changed since the last full backup will be backed up, but any files deleted from the backup source folder will also remain in the backup destination folder.
  • Page 114 *4 If the “Inherit subfolders' access restrictions” option is selected when creating a backup job, the device should be a Buffalo NAS device whose subfolders’ access restrictions is available. Overwrite (Differential) The first backup job runs like a full backup. As each subsequent backup job runs, only files that have been changed since the last full backup will be backed up, and any files deleted from the backup source folder will also be deleted from the backup destination folder.
  • Page 115 • Folders available as backup destinations: ◦ Shared folder on the backup source TeraStation*, ** ◦ Shared folder on another Buffalo NAS device*, **, *** *The folders should be created on a Btrfs-formatted area. **The folder should have the “Backup” checkbox selected under “LAN Protocol Support” on the shared folder settings.
  • Page 116: Preparing A Backup Destination

    TeraStation as a backup destination. The procedure may vary depending on which Buffalo NAS device is selected as a destination. If using a USB drive as a backup destination, make sure its attribute is set to read and write. To change a read-only USB drive’s attribute to read and write, refer to “Read-Only Shares”...
  • Page 117 Chapter 5 Backup Choose the folder to be set as a backup destination. Under “LAN Protocol Support”, select the “Backup” checkbox on the Basic tab. Click OK and proceed to the next step to create a backup device access key.
  • Page 118: Configuring A Backup Job

    You can configure backup jobs by using another shared folder on the Buffalo NAS device or a USB drive connected to the TeraStation as a destination. You can also back up to a Buffalo NAS device on another network as long as the two networks are connected by a VPN or the route is configured properly.
  • Page 119 Chapter 5 Backup If you had configured a backup device access key for the backup source folder on another Buffalo NAS device or the backup destination folder, click Set. If you hadn’t, skip to step 5. Enter the backup device access key and click OK.
  • Page 120 Chapter 5 Backup Click Create.
  • Page 121 Chapter 5 Backup Select backup settings such as date and time to run, then select a backup mode for the “Operation Mode” drop-down list. Refer to the differences between the backup modes from the “Backup Modes” section above. Click Add.
  • Page 122 Check it before creating a backup job. • To back up data between Buffalo NAS devices on a network using jumbo frames, make sure that both devices are configured to use identical (or similar) MTU sizes. If MTU sizes are significantly different, the backup job may not be properly performed.
  • Page 123: If Backing Up From Rsync-Compatible Devices To The Terastation

    Chapter 5 Backup To use a slower LAN port for backup in this environment, configure the LAN port settings to a different network segment. • If you also want to back up the subfolder’s attributes (such as hidden files and read/write status) to the backup destination, select the “Inherit subfolders' access restrictions”...
  • Page 124: Restoring Backup Data

    Chapter 5 Backup Restoring Backup Data The procedure for restoring backup data varies depending on the backup mode. Refer to the following subsection corresponding to the backup mode you have used for backup. When restoring backup data, make sure you have enough available space on the TeraStation to accommodate the backup data, otherwise the restore process will fail.
  • Page 125 Chapter 5 Backup If you had configured a backup device access key for the backup source folder on another Buffalo NAS device or the backup destination folder, click Set. If you hadn’t, skip to step 5. Enter the backup device access key and click OK.
  • Page 126 Chapter 5 Backup Click Create.
  • Page 127 Chapter 5 Backup Select backup settings such as date and time to run, then select “iSCSI backup” for the “Operation Mode” drop- down list. Read the message carefully and click OK. Click Add.
  • Page 128: Backup Logs For If Backup Fails

    Chapter 5 Backup Select the original backup destination as the backup source, then select an iSCSI file I/O volume as the backup destination. Click OK, then click OK again. The process is complete once you close the confirmation window that appears. The backup job will be added to the backup jobs list.
  • Page 129 Chapter 5 Backup Code Description Corrective Action Log Example Check that the Ethernet cable is rsync error: error The backup destination shared securely connected and that the hub starting client-server folder could not be found. or other devices on the network are protocol (code 5) at turned on.
  • Page 130 Chapter 5 Backup Code Description Corrective Action Log Example Change the filename or folder Invalid characters were used in name using compatible characters. the filename or folder name of Available characters are described in the backup destinations. “Adding a Shared Folder” section in chapter 3.
  • Page 131: Replication

    Chapter 5 Backup Code Description Corrective Action Log Example The backup source folders on Check that the backup source folders B103 the backup source TeraStation on the backup source TeraStation are do not exist. on the shared folder list. Check that the backup destination The backup destination folders folders on the backup destination B104...
  • Page 132: Preparing A Replication Destination

    Buffalo NAS device whose subfolders’ access restrictions is available. Preparing a Replication Destination Configure a folder as a replication destination. Follow the procedure below to prepare a Buffalo NAS device as a replication destination. Note: You cannot use the same replication destination folder for multiple replication source folders.
  • Page 133 The process is complete once you close the confirmation window that appears. Note: If you want to replicate to a Buffalo NAS device on another network, follow the procedure below to add the Buffalo NAS device so it can be used as a replication destination.
  • Page 134: Configuring A Replication Job

    Chapter 5 Backup Configuring a Replication Job From Settings on a replication source NAS device, click Backup. Move the replication switch (   ) to the position to enable replication. Click the settings icon (   ) to the right of “Replication”. Click Edit.
  • Page 135 Chapter 5 Backup Click Create. Select the shared folders that will be the replication source and destination. Click OK, then OK again.
  • Page 136: Synchronizing Between Source And Destination Terastations Periodically

    Chapter 5 Backup Read the message carefully and click Yes. The process is complete once you close the confirmation window that appears. Notes: • During setup, you may choose to encrypt and/or compress replication data. Encrypted data will be transferred securely on the network.
  • Page 137: Failover

    Chapter 5 Backup Click Periodic Sync. Select “Daily” or “Weekly” from the “Schedule” drop-down list. If “Daily” is selected, configure the sync period. If “Weekly” is selected, specify the weekdays and the sync period. Click OK. The process is complete once you close the confirmation window that appears. Failover With failover, two TeraStations are connected to the network for redundancy, with one being the main TeraStation and the other being the backup TeraStation.
  • Page 138: Before Configuring Failover

    Chapter 5 Backup Failover will activate if any of the following occurs: • The backup TeraStation cannot detect the main TeraStation within a specified time If the backup TeraStation has not received a packet from the main TeraStation within a specified time, the backup TeraStation considers the main TeraStation to have failed.
  • Page 139: Usage Restrictions

    Chapter 5 Backup LAN port 3 (Static IP) LAN port 1 (Static IP) Main Network LAN port 1 LAN port 3 (Static IP) (Static IP) Backup Usage Restrictions Functional Restrictions Failover is not available when any of the following functions are enabled: Replication, sleep mode, LVM, iSCSI, port trunking, Amazon S3, Dropbox Sync, Microsoft Azure Storage Sync, Microsoft OneDrive Sync Failover is not available when any of the following settings remain or have been configured:...
  • Page 140: Configuring Failover

    Chapter 5 Backup Configuring Failover From Settings for the main TeraStation, click Backup. Click the settings icon (   ) to the right of “Failover”. Click Configure Failover.
  • Page 141 Chapter 5 Backup Select a TeraStation to be the failover backup device and enter its administrator username and password (by default, the username is “admin” and the password is “password”). Select the LAN port to be used for sharing files and enter a virtual IP address. The LAN port you have selected here will also be used for pinging.
  • Page 142: Changing Settings While Failover Is Configured

    Chapter 5 Backup Press the function button. When you press the function button, the TeraStation will beep once. Press and hold down the button until the backup TeraStation beeps again. Initialization on the main and backup TeraStations will begin. Wait until the message disappears.
  • Page 143 Chapter 5 Backup From Settings for the main TeraStation, click Backup. Click the settings icon (   ) to the right of “Failover”. Click Configure Failover.
  • Page 144 Chapter 5 Backup Click Maintenance Mode. Read the message carefully and click Yes. The process is complete once the TeraStation enters maintenance mode. Once you are finished with changing settings in maintenance mode, make sure the TeraStation leaves maintenance mode. You can make the TeraStation leave maintenance mode by either pressing and holding the function button, or follow the procedure below to exit maintenance mode from the main TeraStation’s Settings.
  • Page 145: Synchronizing Between Main And Backup Terastations Periodically

    Note: To update the firmware while in maintenance mode, the main TeraStation can be updated from Settings, but the backup TeraStation cannot. Download the firmware updater from the Buffalo website for the backup TeraStation and try updating the firmware on it.
  • Page 146 Chapter 5 Backup Click the settings icon (   ) to the right of “Failover”. Click the Periodic Sync tab. Click Edit. Select “Daily” or “Weekly” from the “Schedule” drop-down list and click OK. If “Daily” is selected, configure the sync period. If “Weekly” is selected, specify the weekdays and the sync period.
  • Page 147: Switching To The Backup Terastation Manually

    Chapter 5 Backup The process is complete once you close the confirmation window that appears. Switching to the Backup TeraStation Manually If “Switch to backup unit manually” is selected on the Advanced Settings tab in the main TeraStation’s Settings, the backup TeraStation will not replace the main TeraStation if the main TeraStation fails.
  • Page 148 Chapter 5 Backup Click Configure Failover. Click Force Failover to Stop to cancel the failover settings. Shut down this main TeraStation.
  • Page 149: Stopping Failover

    Click the settings icon (   ) to the right of “Power Management”. c. Click Edit. d. Select “Sync with UPS connected to another Buffalo NAS device on the same network” and configure the main TeraStation as a sync source. e. Click OK.
  • Page 150 Chapter 5 Backup Click Configure Failover. Click Stop Failover. The process is complete once you close the confirmation window that appears.
  • Page 151: Backing Up Your Mac With Time Machine

    Chapter 5 Backup Stopping from the Backup TeraStation Log in to Settings for the backup TeraStation and click Force Failover to Stop. Stopping Failover Forcibly If failover hasn’t been stopped by taking actions from both the main and backup TeraStations, navigate to Backup > Failover >...
  • Page 152 Chapter 5 Backup Select the shared folder and click OK. Click OK, then click OK again. The process is complete when you move the Time Machine switch (   ) to the position to enable Time Machine. Note: We recommend adding a quota to limit the backup shared folder space that can be used for Time Machine. If you don’t add a quota, Time Machine will continue to use all available space.
  • Page 153 Chapter 5 Backup Click Time Machine.
  • Page 154 Chapter 5 Backup Click Select Backup Disk. Select the shared folder, then click Use Disk.
  • Page 155 Chapter 5 Backup Click Connect. Enter a username and password to be used for accessing the shared folder and click Connect. Note: If access restrictions are not configured on the destination share, log in using the administrator account. The default username and password for the administrator account are “admin” and “password”. If access restrictions are configured, log in using an account with write privileges.
  • Page 156 Chapter 5 Backup Time Machine will count down from 120 seconds, then backup will begin.
  • Page 157: Chapter 6 Cloud Services And Remote Access

    Chapter 6 Cloud Services and Remote Access Chapter 6 Cloud Services and Remote Access Synchronizing with Amazon S3 The TeraStation supports Amazon S3, a fee-based online storage service provided by Amazon, and other cloud storage services that share the Amazon S3 API. Follow the procedure below to configure your TeraStation for use with Amazon S3.
  • Page 158 Chapter 6 Cloud Services and Remote Access Click Create. Select the service name and region name that you have selected when creating the bucket from the drop- down list. Enter the bucket name, access key ID, and secret access key; select the storage class and the connection protocol, then click OK.
  • Page 159 Chapter 6 Cloud Services and Remote Access Enter a remote folder name to use with Amazon S3 and click OK. Under “LAN Protocol Support”, select the “Backup” checkbox on the Basic tab. Click OK. Enter the desired characters into the backup device access key field and click OK. Configure the desired shared folder settings, then click OK.
  • Page 160: Uploading Files To Amazon S3

    Chapter 6 Cloud Services and Remote Access • If you enter an incorrect bucket name and then cancel editing the Amazon S3 settings, the incorrect bucket name may still accidentally be registered. If this occurs, start from step 4 above and reconfigure the Amazon S3 settings correctly.
  • Page 161 Chapter 6 Cloud Services and Remote Access Click Create. Select backup settings such as date and time to run, then select a backup mode for the “Operation Mode” drop-down list. It is recommended to configure a job to run periodically. Refer to the differences between the backup modes from the “Backup Modes”...
  • Page 162 Chapter 6 Cloud Services and Remote Access Note: If you create a differential backup job and there are files that only exist in the destination folder, these files will be deleted when the job runs. Make sure that files are not saved when creating a backup job. Click Add.
  • Page 163 Chapter 6 Cloud Services and Remote Access Select the shared folder that files will be saved to as a source, and the remote folder created through the “Creating an Amazon S3 Job” section above as a destination. Click OK, then click OK again. The process is complete once you close the confirmation window that appears.
  • Page 164: Synchronizing With Dropbox

    Chapter 6 Cloud Services and Remote Access Synchronizing with Dropbox The TeraStation supports synchronizing with Dropbox, the online cloud service. Once linked, you can share TeraStation files via Dropbox (or Dropbox files via TeraStation). Follow the procedure below to configure your TeraStation for use with Dropbox.
  • Page 165 Chapter 6 Cloud Services and Remote Access Click Create. Click View Dropbox Authentication Page. The authentication site that is offered by Dropbox will be displayed. Log in to the website with your Dropbox account, then click Allow. The authentication code will be displayed. Copy the authentication code and return to Settings. Authentication code reregistration should be finished within three minutes.
  • Page 166 Chapter 6 Cloud Services and Remote Access Paste the authentication code and click OK. Enter the desired job name; select the TeraStation and Dropbox folders, and configure encryption. If you enable encryption, you will need to set an encryption password. The password cannot be changed once you configure it.
  • Page 167: Changing Job Settings

    Chapter 6 Cloud Services and Remote Access • Files that are 900 MB or larger cannot be downloaded using Dropbox Sync. However, even if the file size is smaller than 900 MB, downloading may fail when multiple processes are running at the same time. Changing Job Settings Follow the procedure below to change any job settings you have already configured.
  • Page 168 Chapter 6 Cloud Services and Remote Access Click the Options tab. Click Edit.
  • Page 169 Chapter 6 Cloud Services and Remote Access Configure the desired settings and click OK. The process is complete once you close the confirmation window that appears. Notes: • When specific settings are changed, the changes will not be applied and the files on Dropbox may not be synchronized to the TeraStation.
  • Page 170: Creating A Shared Link (Windows Only)

    Chapter 6 Cloud Services and Remote Access Creating a Shared Link (Windows Only) Buffalo offers a Windows application, “B-Sync”, that can create shared links for the files stored in the TeraStation folders. You can download the application from the Buffalo website.
  • Page 171 Chapter 6 Cloud Services and Remote Access Click Create. The job setup wizard will open. Enter your Azure Storage account name and access key, then click Next.
  • Page 172 Chapter 6 Cloud Services and Remote Access Enter the desired job name and click Next.
  • Page 173 Chapter 6 Cloud Services and Remote Access Select “Backup” and click Next.
  • Page 174 Chapter 6 Cloud Services and Remote Access Select the desired shared folder on the TeraStation as the backup source folder. A TeraStation shared folder that is currently being used by certain TeraStation functions, including an existing Azure Storage sync job, cannot be selected.
  • Page 175 Chapter 6 Cloud Services and Remote Access Specify the sync period and click Next.
  • Page 176 Chapter 6 Cloud Services and Remote Access Select the desired action to take for files in the container that share the same name as files in the backup source after they are deleted, then click Next.
  • Page 177 Chapter 6 Cloud Services and Remote Access Configure whether to filter the backup target files. The following screen is available to configure file filtering by file size and whether they’re hidden. “Hidden files” refer to files whose filename starts with a period. Configure the desired filtering settings and click Next.
  • Page 178: Creating An Azure Storage Sync Restore Job

    Chapter 6 Cloud Services and Remote Access The following screen is available to configure file filtering by extensions. Configure the desired filtering settings and click Next. Confirm that all settings are properly configured and click OK. The process is complete once you close the confirmation window that appears. Notes: •...
  • Page 179 Chapter 6 Cloud Services and Remote Access From Settings, click Cloud Storage. Move the Microsoft Azure Storage Sync switch (   ) to the position to enable Microsoft Azure Storage Sync. Click the settings icon (   ) to the right of “Microsoft Azure Storage Sync”. Click Create.
  • Page 180 Chapter 6 Cloud Services and Remote Access The job setup wizard will open. Enter your Azure Storage account name and access key, then click Next.
  • Page 181 Chapter 6 Cloud Services and Remote Access Enter the desired job name and click Next.
  • Page 182 Chapter 6 Cloud Services and Remote Access Select “Restore” and click Next.
  • Page 183: Changing Job Settings

    Chapter 6 Cloud Services and Remote Access Enter the container name for the restore source and select the desired shared folder on the TeraStation as the restore destination, then click Next. Select either to restore data into the first level folder (root folder) or the second level (subfolder) of the restore destination folder, then click Next.
  • Page 184 Chapter 6 Cloud Services and Remote Access Click the settings icon (   ) to the right of “Microsoft Azure Storage Sync”. From the job list, click the job whose settings you want to change.
  • Page 185 Chapter 6 Cloud Services and Remote Access Click the Options tab. Click Edit.
  • Page 186: Synchronizing With Microsoft Onedrive

    Chapter 6 Cloud Services and Remote Access Configure the desired settings and click OK. The process is complete once you close the confirmation window that appears. Synchronizing with Microsoft OneDrive The TeraStation supports synchronizing with Microsoft OneDrive, the online cloud storage service. Once linked, you can share the TeraStation files via OneDrive (or OneDrive files via the TeraStation).
  • Page 187 Chapter 6 Cloud Services and Remote Access From Settings, click Cloud Storage. Move the OneDrive Sync switch (   ) to the position to enable OneDrive Sync. Click the settings icon (   ) to the right of “Microsoft OneDrive Sync”. Click Create. The sign-in window will open.
  • Page 188 Chapter 6 Cloud Services and Remote Access Enter the desired job name and click Next. Select the sync action and behavior for when files with the same name are already in the target folder, then click Next. There are three types of sync actions; bidirectional, uploading, and downloading. If bidirectional is selected as the sync action, files on both OneDrive and the TeraStation will be updated.
  • Page 189 Chapter 6 Cloud Services and Remote Access action, only files on OneDrive will be updated. If downloading is selected as the sync action, only files on the TeraStation will be updated. The behavior for when files with the same name already exist will occur when the files that have the same name on both the TeraStation and OneDrive are changed.
  • Page 190 Chapter 6 Cloud Services and Remote Access Select the desired TeraStation and OneDrive folders. A TeraStation shared folder that is currently being used by certain TeraStation functions, including an existing OneDrive Sync job, cannot be selected. If you want to create an empty folder first, click Browse under “Folder on TeraStation”, then click Create Folder on the selecting folder window that appears.
  • Page 191 Chapter 6 Cloud Services and Remote Access Specify the sync period and click Next.
  • Page 192 Chapter 6 Cloud Services and Remote Access Files will be uploaded during the start and end time of the period configured in step 9 above. If you want to always upload files during the configured sync period, select “Always sync within the sync period” for “Frequency”.
  • Page 193 Chapter 6 Cloud Services and Remote Access Select whether to encrypt the files using a password. When encryption is enabled, uploaded files will be archived in zip format and encrypted using the entered encryption password. Click Next after selections are finished.
  • Page 194 Chapter 6 Cloud Services and Remote Access Configure file options. Select whether to check for file consistency and delete older files with the same name from OneDrive. Click Next after selections are finished.
  • Page 195 Chapter 6 Cloud Services and Remote Access Configure whether to filter the target files. The following screen is available to configure file filtering by file sizes and whether they’re hidden. The file size filtering will work only for the upload process. The available maximum size is up to 15,360 MB (15 GB).
  • Page 196 Chapter 6 Cloud Services and Remote Access The following screen is available to configure file filtering by extensions. Configure the desired filtering settings and click Next. Confirm that all settings are properly configured and click OK. The process is complete once you close the confirmation window that appears. Notes: •...
  • Page 197: Changing Job Settings

    Chapter 6 Cloud Services and Remote Access To start resyncing immediately after clicking Reset, change the frequency settings to “Always sync within the sync period” by referring the “Changing Job Settings” section below. Changing Job Settings Follow the procedure below to change any job settings you have already configured. From Settings, click Cloud Storage.
  • Page 198 Chapter 6 Cloud Services and Remote Access Click the Options tab. Click Edit.
  • Page 199: Corrective Actions For In Case Of Error

    Chapter 6 Cloud Services and Remote Access Configure the desired settings and click OK. The process is complete once you close the confirmation window that appears. Corrective Actions for in Case of Error Error Appears in the “Status” Field of Job List If a token error is displayed on the “Status”...
  • Page 200 Chapter 6 Cloud Services and Remote Access From the job list, click the job whose the token error occurs.
  • Page 201 Chapter 6 Cloud Services and Remote Access Click Update Token at the bottom-left of the window. The process is complete once you close the confirmation window that appears. Error Appears While Creating a Job or Error Code Appears on the Error Log You may encounter error messages that contain the following error codes when creating OneDrive Sync jobs;...
  • Page 202: Webaccess

    Check that the same Microsoft account is used on another Buffalo NAS device or Microsoft software. This error may be There are too many requests so activityLimitReached resolved by reducing the maximum number data could not be synchronized.
  • Page 203 Chapter 6 Cloud Services and Remote Access Configure the desired settings, then click OK. • To use SSL encryption for more secure data transfers, enable “HTTPS/SSL Encryption”. • You may use the BuffaloNAS.com server as a DNS server, or disable it to use a different DNS server. •...
  • Page 204 Chapter 6 Cloud Services and Remote Access Click Create. For best results, create a new dedicated share for WebAccess to prevent opening files accidentally. Under “LAN Protocol Support”, select the “WebAccess” checkbox on the Basic tab. Click the Option 2 tab.
  • Page 205: Accessing Via Webaccess

    Allow everyone: Anyone can access (view) shared folders. (Access restrictions configured for shared folders will not work.) Allow only registered groups and users: All groups and users registered on the Buffalo NAS device can use WebAccess. (Access restrictions configured for shared folders will not work.) Use folder permissions: Users and groups have the same access permissions with WebAccess that they do locally.
  • Page 206: Unable To Create A Buffalonas.com Name

    Chapter 6 Cloud Services and Remote Access For Android Devices To access from an Android device, install the “WebAccess A” app from Google Play. Refer to the help guide for the app for more detailed information. For Computers Use a web browser on a computer; supported browsers include Microsoft Edge, Firefox, Google Chrome, Internet Explorer 9 or later, Safari 9 or later.
  • Page 207: Ftp

     ) to the position to enable WebAccess. After configuring the required settings on the Buffalo NAS device is finished, next configure the router using the port number set at step 5 above. By default, the TeraStation’s shares are only accessible by users connected to the same network or router as the TeraStation.
  • Page 208: Accessing The Terastation With An Ftp Client

    Chapter 6 Cloud Services and Remote Access Choose a folder to enable remote FTP access on. Under “LAN Protocol Support”, select the “FTP” checkbox on the Basic tab; select read-only or read and write for the shared folder’s attribute on the Option 2 tab and click OK. The process is complete once you close the confirmation window that appears.
  • Page 209 Chapter 6 Cloud Services and Remote Access • Hostname: IP address of the TeraStation • Username: “Anonymous” • Password: any character string • Port: 21 Notes: • If the TeraStation joins a domain, domain and anonymous users cannot remote access via FTP. Domain users will be able to access remotely using SFTP.
  • Page 210: Chapter 7 Security Enhancement

    Chapter 7 Security Enhancement Chapter 7 Security Enhancement Two-Factor Authentication Two-factor authentication is a security feature that strengthens login security by requiring a verification code in addition to username and password to log in to Settings. Two-factor authentication can better protect both your login credentials and data on the TeraStation.
  • Page 211 Chapter 7 Security Enhancement Select the logged-in user for whom two-factor authentication will be enabled. Click Two-Factor Authentication.
  • Page 212 Chapter 7 Security Enhancement Click Next.
  • Page 213 Chapter 7 Security Enhancement Enter an email address as an alternative method to receive the verification code and click Next. Click Send Test Email to have a test email sent to the entered address to confirm that the address is correct. Note: The entered email address will be assigned to a user.
  • Page 214 Chapter 7 Security Enhancement Use the authenticator app to scan the QR code displayed in Settings. Alternatively, enter the setup key into the app. Click Next after the app establishes the connection with the TeraStation.
  • Page 215: Restricting Logins For Non-Admin Users

    Chapter 7 Security Enhancement Enter the 6-digit verification code displayed on the authenticator app and click Next. The process is complete once you close the wizard window that appears. Two-factor authentication will become active after logging out from Settings. A verification code will be required the next time you log in to Settings using the same username.
  • Page 216 Chapter 7 Security Enhancement Select a user from the user list. Click Two-Factor Authentication.
  • Page 217: Disabling Two-Factor Authentication

    Chapter 7 Security Enhancement Change the “Settings Interface Access” option to “Deny login by non-administrator users”, then click OK. The process is complete once you close the confirmation window that appears. Disabling Two-Factor Authentication From Settings, click File Sharing. Click the settings icon (   ) to the right of “Users”.
  • Page 218 Chapter 7 Security Enhancement Select the logged-in user for whom two-factor authentication will be disabled. Click Two-Factor Authentication.
  • Page 219: Encrypting Data Transmission

    Chapter 7 Security Enhancement Click Disable. The process is complete once you close the confirmation window that appears. Encrypting Data Transmission Encrypting Settings Data All communication with Settings can use SSL encryption if you access the Settings page by changing “http://” to “https://”...
  • Page 220: Encrypting Ftp Transfer Data

    The server certificate included in the TeraStation’s default settings was created by Buffalo, and in some cases, the security certificate warning message may appear in your browser or another security software. If this occurs, disregard the message and continue.
  • Page 221 Chapter 7 Security Enhancement Register “server.key” for “Secret Key” and “server.crt” for “Server Certificate (.crt)”, then click Import. The process is complete once you close the confirmation window that appears. Notes: • Place the SSL key files (server.key, server.crt) directly below the C root drive. The SSL key files may be unable to be updated if they are placed in folders or paths that contain multibyte characters.
  • Page 222: Chapter 8 Settings Backup/Restoration

    Saving and Applying Settings The TeraStation’s settings can be saved to a USB drive and applied to another Buffalo NAS device of the same series. Use this feature to back up or copy settings to a new Buffalo NAS device.
  • Page 223: Saving Settings

    Applying Settings The saved settings can be applied to a different Buffalo NAS device of the same series. If applying settings to another Buffalo NAS device, the unit’s current firmware version will be changed to the version used to save the settings.
  • Page 224: Transferring Another Buffalo Nas Device's Settings

    The process is complete once you close the confirmation window that appears. Transferring Another Buffalo NAS Device’s Settings You can transfer saved settings from another series Buffalo NAS device to your TeraStation. The following settings can be transferred: • Shared folders which are created from “File Sharing” > “Folder Setup”...
  • Page 225: Creating A Config File (.Nas_Config)

    Procedure for Buffalo NAS Devices Other Than TS-X Series Models Follow the procedure below to create a config file on a Buffalo NAS device that is not part of TS-X series TeraStations. Refer to the user manual of the Buffalo NAS device whose settings will be saved to a USB drive.
  • Page 226: Restoring Factory Defaults

    The process is complete once you close the confirmation window that appears. Notes: • If the migration target Buffalo NAS device contains shared folders, users, and groups that share the same name as the transferred settings, the existing settings will be overwritten. If the users and groups meet the following conditions, the settings will not be transferred: users share the same name with groups that already exist on the migration target Buffalo NAS device;...
  • Page 227: Initializing Using The Usb Initialization Drive

    Chapter 8 Settings Backup/Restoration Click Initialize TeraStation. The “Confirm Operation” screen will open. Enter the confirmation number, then click OK. The settings will be restored to its factory default settings. The message will appear as a notification while settings are being restored. The process is complete when the message disappears.
  • Page 228: Resetting The Administrator Password

    Chapter 8 Settings Backup/Restoration Select “Create a USB drive for initializing settings”. From “Target USB Drive”, select the USB drive that is connected to the USB port on the TeraStation, then click Execute. The “Confirm Operation” screen will open. Enter the confirmation number, then click OK. The process is complete once you close the confirmation window that appears.
  • Page 229 Chapter 8 Settings Backup/Restoration The process is complete when the message disappears. This will typically reset the admin username and password, two-factor authentication settings, IP settings other than Wake-on-LAN, port trunking, SSL, and service port restriction settings to their factory default values. This button can be disabled in Settings;...
  • Page 230: Chapter 9 Network Settings

    Chapter 9 Network Settings Chapter 9 Network Settings Wake-on-LAN The TeraStation supports Wake-on-LAN, which allows it to be turned on remotely. The TeraStation will be turned on automatically in the following situations: receiving a Wake-on-LAN packet, recovering from a power outage, disconnecting and reconnecting the power cable.
  • Page 231 Chapter 9 Network Settings Trunking Mode Characteristics Only one NIC slave in the bond is active. A different slave becomes Active-backup active if and only if the active slave fails. Creates aggregation groups that share the network speed and duplex settings.
  • Page 232 Chapter 9 Network Settings Click a port trunking bond. Select the port trunking mode and click OK.
  • Page 233: Snmp

    Chapter 9 Network Settings Click Save. Read the message carefully and click Yes. Click Yes to restart the TeraStation. If you select “No”, make sure you restart the TeraStation at a later time to apply port trunking settings. The process is complete after the TeraStation has been restarted. SNMP If SNMP is enabled, you can browse your TeraStation from SNMP-compatible network management software.
  • Page 234 Chapter 9 Network Settings From Settings, click Network. Move the SNMP switch (   ) to the position to enable SNMP. Click the settings icon (   ) to the right of “SNMP”. Click Edit. Select whether to use SNMP version 2 or version 3. Configure the desired settings, then click OK.
  • Page 235: Proxy Server

    The process is complete once you close the confirmation window that appears. SNMP is now enabled. For further use, configure your SNMP-compatible network management software using the Buffalo-specific MIB (management information base) file. The MIB file is available from the Buffalo website.
  • Page 236: Jumbo Frames

    Chapter 9 Network Settings Enable “Proxy Server”. Enter the proxy server IP address or hostname, port number, username and password, then click OK. Once you configure the proxy server settings, you may use the settings for features that will link with cloud storage services by selecting the “Configured settings”...
  • Page 237: Changing The Ip Address

    Chapter 9 Network Settings Select or enter the desired MTU size and click OK. The process is complete once you close the confirmation window that appears. Connection Transmission Transfer data using jumbo frames. Jumbo Frame Jumbo Frame Jumbo Frame Compatible Switch Compatible PC Transfer data without using...
  • Page 238 Chapter 9 Network Settings Note: If the TeraStation is being used as an iSCSI drive, to change the settings, navigate to Storage > iSCSI in Settings and move the iSCSI switch to the off position temporarily before changing settings. From Settings, click Network. Click the settings icon ( ...
  • Page 239: Mapping Ip Address And Hostname

    Chapter 9 Network Settings • When you disable DHCP, all addresses including default gateway and DHCP server addresses cannot be assigned automatically, even if you can select the “Assign automatically” options for them. Mapping IP Address and Hostname The TeraStation allows you to map an IP address and a hostname (FQDN) of another host you would like the TeraStation to communicate with, such as the domain controller.
  • Page 240 Chapter 9 Network Settings Click Add. Enter the hostname (FQDN) and the IP address that you want to map, then click OK. Click OK again. The process is complete once you close the confirmation window that appears.
  • Page 241: Chapter 10 Advanced Features

    Chapter 10 Advanced Features Chapter 10 Advanced Features Email Notification Your TeraStation can send you email reports daily, or whenever settings are changed or an error occurs. You can configure the events that will trigger notifications from any of the following functions: quotas, drives (internal, external, or RAID array), fan, backup, replication, failover, system alert.
  • Page 242: Changing Events For Email Reports

    Chapter 10 Advanced Features Enter your email server settings and the notification email’s default subject, then configure recipients and the time when email reports will be sent. If you select an authentication type other than “Disable” from the drop-down list, you can enter the sender email address and credentials of the email server.
  • Page 243: Sleep Mode

    Chapter 10 Advanced Features On the displayed screen, select or clear the category’s checkboxes, then click OK. Notification emails will be categorized into the following importance levels. Refer to the chart below for the detailed information of category importance levels. Levels Details Daily Report...
  • Page 244 Chapter 10 Advanced Features Click the settings icon (   ) to the right of “Sleep Timer”. Click Edit. Specify the timer interval, wake-up time, and time to enter sleep mode, then click OK. The process is complete once you close the confirmation window that appears. Notes: •...
  • Page 245: Ups (Uninterruptible Power Supply)

    Buffalo NAS device is connected to the UPS, select “Sync with UPS connected to another Buffalo NAS device on the same network”. After making this selection, enter the IP address of the Buffalo NAS device that will be the sync source into “Other Buffalo NAS's IP Address”.
  • Page 246: One Psu Device Is Installed

    Chapter 10 Advanced Features One PSU Device Is Installed Plug the power cable of the UPS to a wall socket. Connect the power cable of the TeraStation to the UPS. Connect the UPS and the TeraStation. Turn on the UPS, then the TeraStation. From Settings, click Management.
  • Page 247: Two Psu Devices Are Installed

    Chapter 10 Advanced Features Two PSU Devices Are Installed The TS51220RH TeraStation model supports multiple PSU device connections. Refer to the setups below for connection configurations. A. To Boot the TeraStation After the Power Supply Recovers (Recommended) Connect both power cables of the TeraStation to a single UPS device. Wall Socket TS51220RH B.
  • Page 248: Automatic Shutdown If Power Supply Fails

    Chapter 10 Advanced Features Connect the UPS device and the TeraStation as described above. Turn on the UPS, then the TeraStation. From Settings, click Management. Click the settings icon (   ) to the right of “Power Management”. Click Edit. Configure the desired settings, then click OK. The process is complete once you close the confirmation window that appears.
  • Page 249: Logs

    Chapter 10 Advanced Features From Settings, click Management. Click the settings icon (   ) to the right of “Power Management”. Click Edit. Click the Power Supply Failure Settings tab. Select “Shut down TeraStation” and enter the number of minutes that will elapse after the power supply fails before the unit shuts down.
  • Page 250: Transferring Logs To The Syslog Server

    Chapter 10 Advanced Features From Settings, click Management. Click the settings icon (   ) to the right of “Logs”. Select a log to view. Note: The file access log stores file access events that occurred on the internal drives. File access on USB drives are not logged.
  • Page 251: Creating A Shortcut To The Logs In The Shared Folder

    Chapter 10 Advanced Features Click the settings icon (   ) to the right of “Logs”. Click Edit. Enable “Syslog Transfer”. Enter the IP address of the syslog server where you want to transfer the logs to. Select the type of log that you want to transfer from “Logs to Transfer” and click OK. The process is complete once you close the confirmation window that appears.
  • Page 252: Changing Archive Rules For File Access Logs

    Chapter 10 Advanced Features The process is complete once you close the confirmation window that appears. In the selected shared folder, a folder named “system_log” will now contain the shortcuts to logs. Changing Archive Rules for File Access Logs You can configure how many logs are kept or how long each log will be kept on the TeraStation. From Settings, click Management.
  • Page 253: Updating The Firmware

    Chapter 10 Advanced Features • If there is not enough space to save logs, the message will appear as a notification. If it does, free up space by deleting the current file access logs. If no free space is made available elsewhere, older logs will automatically be deleted.
  • Page 254: Enabling Automatic Update

    The “Confirm Operation” screen will open. Enter the confirmation number, then click OK. The process is complete once you close the confirmation window that appears. Refresh the browser and log in to Settings again. You can also download the latest firmware from the Buffalo website. Enabling Automatic Update From Settings, click Management.
  • Page 255: Configuring Update Notification

    Chapter 10 Advanced Features Select either “Update the firmware automatically” or “Update the firmware on schedule”, then click OK. If you select to update on schedule, choose a specific time of day for the update to occur. The process is complete once you close the confirmation window that appears. Configuring Update Notification Configure whether or not to receive a notification when a new firmware version becomes available.
  • Page 256: Name, Date, Time, And Language

    For more details such as the information sent and how it will be handled by us, click Privacy Policy for Usage Feedback. If update notification is enabled, it will also automatically enable sending usage feedback to Buffalo. If you don’t want to send this information to us, disable update notification.
  • Page 257 Chapter 10 Advanced Features From the Name tab, enter the TeraStation’s name and description. The name will be used for identifying your TeraStation on the network. When your TeraStation is detected, the name will be used as the hostname. The hostname may contain up to 15 alphanumeric characters and hyphens (-).
  • Page 258: Beep Alerts

    Chapter 10 Advanced Features Click the Language tab and select the language to be used. Note: This tab changes the language used by the TeraStation for email notifications and other functions. To change the language displayed in Settings, go to Settings and click Language from the menu bar. Choose your desired language from the drop-down list.
  • Page 259: Lcd And Leds

    Chapter 10 Advanced Features Select the triggers to make the alert beep, then click OK. The process is complete once you close the confirmation window that appears. LCD and LEDs You may configure options for the LCD panel and adjust the brightness of the LCD panel and LEDs on the TeraStation.
  • Page 260 Chapter 10 Advanced Features From the Front Panel tab, configure your desired settings and click OK. The process is complete once you close the confirmation window that appears.
  • Page 261: Chapter 11 Drive Replacement And Troubleshooting

    Notes • Use a Buffalo OP-HDH2U series drive as the replacement drive. The replacement drive should be the same capacity or larger as the original drive. If a larger drive is used, the extra space will not be usable in a RAID array.
  • Page 262 Chapter 11 Drive Replacement and Troubleshooting The failed drive’s error LED will be glowing red. Push its unlock button and swing the lock mechanism out. While the TeraStation’s power is turned off, refer to the notification email sent by email notifications to determine which drive has failed.
  • Page 263: Drive Replacement For A Raid 0 Array

    Chapter 11 Drive Replacement and Troubleshooting Swing the lock back down until it clicks into place. If the TeraStation’s power is off, press the power button. When the replaced drive is recognized, the error LED will blink and the message will appear as a notification.
  • Page 264: Drive Replacement For A Jbod

    Chapter 11 Drive Replacement and Troubleshooting The new RAID 0 array will be created. Next, create a shared folder by referring to the “Adding a Shared Folder” section in chapter 3. Drive Replacement for a JBOD If a drive used as JBOD fails, you need to format the replaced drive after replacing the defective drive to a new drive. The failed drive’s error LED will be glowing red.
  • Page 265: Drive Replacement For A Redundant Raid Array (Terastation Is On)

    TeraStation may malfunction. • Use a Buffalo OP-HDN series drive as the replacement drive. The replacement drive should be the same capacity or larger as the original drive. If a larger drive is used, the extra space will not be usable in a RAID array.
  • Page 266 Chapter 11 Drive Replacement and Troubleshooting Open the front cover with the included key. The failed drive’s status LED will be glowing red. Push its unlock button and swing the lock mechanism out.
  • Page 267 Chapter 11 Drive Replacement and Troubleshooting Drives without red status LEDs lit are still on. Do not unplug or remove them. Pull out the drive cartridge and remove it from the TeraStation. Insert the new drive into the empty slot with the lock mechanism remaining open. Push here to insert.
  • Page 268: Drive Replacement For A Redundant Raid Array (Terastation Is Off)

    Chapter 11 Drive Replacement and Troubleshooting Swing the lock back down until it clicks into place. When the replaced drive is recognized, the status LED will flash red and the message will appear as a notification. Close the front cover. Press the function button.
  • Page 269: Drive Replacement For A Raid 0 Array

    Chapter 11 Drive Replacement and Troubleshooting Back up the saved data to another location before replacing the failed drive. If one or more drives fail during drive replacement, data can no longer be retrieved from the TeraStation. Open the front cover with the included key. The failed drive’s status LED will be glowing red.
  • Page 270: Drive Replacement For A Jbod

    Chapter 11 Drive Replacement and Troubleshooting Delete the RAID array that held the failed drive by referring to the “Using JBOD” section in chapter 4. Format the replaced drive by referring to the “Formatting Drives” section in chapter 4. Create a new RAID 0 array by referring to the “Creating a RAID Array”...
  • Page 271: Replacing A Non-Malfunctioning Drive

    Chapter 11 Drive Replacement and Troubleshooting When the replaced drive is recognized, the status LED will flash red and the message will appear as a notification. Close the front cover. Press the function button. The TeraStation will beep once. Press and hold the button until the TeraStation beeps again.
  • Page 272 Chapter 11 Drive Replacement and Troubleshooting Push a drive’s unlock button and swing the lock mechanism out. Pull out the drive cartridge and remove it from the TeraStation. Insert the drive back into the same slot with the lock mechanism remaining open. Push here to insert.
  • Page 273: Terastation Does Not Work Properly

    In such a case, try the corresponding corrective action to recover from the error, described in each section below. If the error is still not resolved, contact Buffalo technical support for assistance. • The power LED keeps blinking instead of turning into a solid glow; follow the procedure at the “Power LED Keeps...
  • Page 274: Booting The Terastation In Emergency Mode

    To recover from emergency mode, follow the procedure below. Download the firmware updater from the Buffalo website. Extract the downloaded file by double-clicking it and launch the updater. Update the firmware for the TeraStation unit that is currently in emergency mode.
  • Page 275: Opening The Network Credentials Window

    Chapter 11 Drive Replacement and Troubleshooting • The SMB protocol is suited to your environment. To configure the TeraStation to have the network credentials window appear when accessing a shared folder, refer to the “Opening the Network Credentials Window” section. If the folder owner and access permissions have accidentally been changed to incorrect parameters, restore them by referring the “Restoring Owner and Permission Settings”...
  • Page 276 Chapter 11 Drive Replacement and Troubleshooting Click the settings icon (   ) to the right of “Folder Setup”. Click Advanced Settings for Subfolders.
  • Page 277: Configuring Compatible Smb Protocols

    Chapter 11 Drive Replacement and Troubleshooting Select a folder to restore permissions from the tree. Note: If you select a root shared folder from the tree, the action will not apply to the recycle bin. To apply the action to the recycle bin, select it instead. Select the actions and action range to run, then click OK.
  • Page 278: Cleaning The Dustproof Filter

    Chapter 11 Drive Replacement and Troubleshooting Click Edit. Change the “Protocol Selection” option to “Manual”. Select the upper and lower SMB protocols and click OK. The process is complete when the file sharing menu list is displayed. Cleaning the Dustproof Filter If your TeraStation has a front cover and you are trying to clean the dustproof filter on the front cover, follow the procedure below.
  • Page 279 Chapter 11 Drive Replacement and Troubleshooting Remove the front cover while holding the hook downward. Remove the dustproof filter from the front cover and clear any dust, such as by using a vacuum cleaner.
  • Page 280 Chapter 11 Drive Replacement and Troubleshooting When cleaning is finished, return the filter and the front cover. Close the front cover.
  • Page 281: Chapter 12 Utilities

    Chapter 12 Utilities NAS Navigator2 NAS Navigator2 is a utility program that makes it easy to display Settings, change the Buffalo NAS device’s IP address, or check its drives. To install NAS Navigator2, refer to the appropriate procedure below for your computer.
  • Page 282: Chapter 13 Appendix

    Chapter 13 Appendix Chapter 13 Appendix LCD Panel Modes The LCD panel can be cycled through different modes by pressing the display button. LCD Message Description Corrective Action Connect an Ethernet LANx Not connected to a network. cable to the LAN Not Connected port.
  • Page 283: Errors

    If there is a corresponding corrective action described below for the code, try it first. If the code is still displayed after trying the corrective action, contact Buffalo technical support for assistance. You can also confirm the current status from the Dashboard in Settings or by using NAS Navigator2. If NAS Navigator2 displays the error as an unknown error, check the Dashboard in Settings for the error details.
  • Page 284: Notices

    If there is a corresponding corrective action described below for the code, try it first. If the code is still displayed after trying the corrective action, contact Buffalo technical support for assistance. You can also confirm the current status from the Dashboard in Settings or by using NAS Navigator2. If NAS Navigator2 displays the error as an unknown error, check the Dashboard in Settings for the error details.
  • Page 285: Information Events

    If there is a corresponding corrective action described below for the code, try it first. If the code is still displayed after trying the corrective action, contact Buffalo technical support for assistance. You can also confirm the current status from the Dashboard in Settings or by using NAS Navigator2. If NAS Navigator2 displays the status as an unknown error, check the Dashboard in Settings for the status details.
  • Page 286 Chapter 13 Appendix LCD Message Description Corrective Action Recovering the RAID array. Rebuilding Note: Transfer speeds are slower during Array x... the rebuilding process. I19 Rewriting Rewriting drives in the TeraStation with 0s. Array x... Formatting Formatting the drive. Drive x... I21 Checking Checking the drive.
  • Page 287: Default Settings

    Chapter 13 Appendix LCD Message Description Corrective Action I41 Push Func Press the function button to start the to Start settings initialization process. Recovery I42 Preparing Preparing to start the settings initialization Recovery process. The TeraStation was started from the USB initialization drive, but the settings cannot Unsupported be initialized from this USB initialization...
  • Page 288: Specifications

    TS5420DN (partially-populated model): RAID 1 RAID Mode TS5420DN, TS5420RN: RAID 5 TS5820DN, TS51220RH: RAID 6 Specifications Check the Buffalo website for the latest product information and specifications. IEEE 802.3ab (1000BASE-T), IEEE 802.3u (100BASE-TX), IEEE Standards Compliance 802.3 (10BASE-T) 1GbE LAN Interface...
  • Page 289 0, 1, 5, 6, 10, JBOD (individual drives) Internal Drive TS51220RH: Buffalo OP-HDH2U series drive Other models than TS51220RH: Buffalo OP-HDN series drive Note: The replacement drive should be the same capacity Replacement Drive or larger as the original drive. The drives listed above are...
  • Page 290 Chapter 13 Appendix TS5420DN, TS5420RN: AC 100–240 V, max. 2.5 A, 50/60 Hz Power Supply TS5820DN: AC 100–240 V, max. 3.0 A, 50/60 Hz TS51220RH: AC 100–240 V, 7.0–3.5 A, 50/60 Hz TS5420DN: 170 × 215 × 230 mm (6.7 × 8.5 × 9.1 in.) Dimensions (W ×...

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