TS-451D2 User Guide 1. Preface About This Guide This guide provides information about the device and step-by-step instructions on installing the hardware. It also provides instructions on basic operations and troubleshooting information. Audience This document is intended for consumers and storage administrators. This guide assumes that the user has a basic understanding of storage and backup concepts.
This chapter provides basic information about the QNAP device. About the TS-451D2 The TS-451D2 is powered by an Intel® Celeron® J4025 dual-core 2.0 GHz processor. With high-efficiency file management, data protection, and HDMI output, the TS-451D2 provides high storage potential to store, share, and back up files.
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TS-451D2 User Guide Component TS-451D2-2G TS-451D2-4G Memory slots 2 x DDR4 SODIMM Note Use only QNAP memory modules to maintain system performance and stability. For NAS devices with more than one memory slot, use QNAP modules with identical specifications. Using unsupported modules may degrade performance, cause errors, or prevent the operating system from starting.
TS-451D2 User Guide Component TS-451D2-2G TS-451D2-4G System battery CR2032 lithium battery 3V Sound level 18.5 dB(A) Note The sound level was tested at a bystander position, which is within one meter of the NAS. The test NAS operated at low speed with the maximum number of drives installed.
TS-451D2 User Guide Front Panel Component Component Status LED Power button LAN LED USB One Touch Copy button USB LED USB 3.2 Gen 1 One Touch Copy Type-A port Drive LEDs Rear Panel Component Component Reset button USB 3.2 Gen 1 Type-A ports...
TS-451D2 User Guide Safety Information The following instructions help ensure personal safety and environmental safety. Read these instructions carefully before performing any operations. General Instructions • The device should be stored in a secure location with restricted access, controlled through the use of a tool, lock and key, or any means of security.
3. Hardware Installation This section provides information on installing drives, memory modules, and expansion cards. Drive Installation The TS-451D2 is compatible with 3.5-inch hard drives, 2.5-inch hard drives, and 2.5-inch solid-state drives. Installing 3.5-inch Hard Drives on 3.5-inch Trays Warning •...
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TS-451D2 User Guide Note The preinstalled drive trays come unlocked. Important Ensure the drive tray keys are stored in a safe place. 3. Install a drive on the tray. a. Remove the fastening panels from the sides of the drive tray.
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TS-451D2 User Guide d. Attach the screws. 4. Load the tray into the bay. a. Insert the tray into the bay. b. Push the handle. Hardware Installation...
TS-451D2 User Guide c. Lock the tray. 5. Power on the NAS. Installing 2.5-inch Hard Drives or Solid-State Drives on 3.5-inch Trays Warning • Installing a drive deletes all data on the drive. • Observe electrostatic discharge (ESD) procedures to avoid damage to components.
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TS-451D2 User Guide • Moving fan blades: Keep your hands and other body parts away from moving fan blades. • Other moving components: Keep your hands and other body parts away from other moving components. 1. Power off the NAS.
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TS-451D2 User Guide b. Place the drive on the tray so that the holes on the bottom of the drive are aligned with the holes on the bottom of the tray. c. Attach the screws. 4. Load the tray into the bay.
5. Power on the NAS. Installing Expansion Units The TS-451D2 supports USB expansion units. For details, see table below. To connect the device to USB expansion units, USB Type-A to USB Type-C cables are required. You can purchase storage expansion accessories from QNAP or an authorized reseller.
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TS-451D2 User Guide For the list of compatible expansion units and the maximum number of applicable expansion units, go to http://www.qnap.com/go/compatibility-expansion. Expansion Unit Model Description Required Accessories TR-002 • Uses a USB 3.2 Gen 2 Type-C USB 3.2 Gen 2 Type-A to Type-C...
TS-451D2 User Guide 3. Verify that the expansion units are recognized by the NAS. a. Log on to QTS as administrator. b. Go to Main Menu > Storage & Snapshots > Overview > System . c. Verify that the expansion units are listed.
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TS-451D2 User Guide Important Remember the number of each drive. The drive trays will need to be returned to their original bays. For details, see Drive Numbering. 5. Place the device on its left side. 6. Remove an existing module.
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TS-451D2 User Guide b. Verify that the module has tilted upward and is completely released from the slot. Warning Attempting to remove a module that is not completely released may damage the module and the motherboard. c. Hold the module by the edges.
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TS-451D2 User Guide 7. Install a new module. a. Align the notch with the ridge in the slot. b. Insert the module into the slot. c. Verify that the metal connectors are completely inserted into the slot. d. Carefully press down on the module until the retention clips lock the module into place.
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TS-451D2 User Guide 10. Connect all cables and external attachments. 11. Power on the device. 12. Verify that the module is recognized by the device. a. Log on to QTS as administrator. b. Go to Control Panel > System > System Status > Hardware Information .
TS-451D2 User Guide 4. QTS Installation Method Description Requirements Qfinder Pro installation If the NAS is connected to your • Computer (Recommended) local area network, you can do the • Network cable following: • Qfinder Pro installer • Locate the NAS using Qfinder Pro.
TS-451D2 User Guide The Smart Installation Guide opens in the default web browser. 5. Click Start Smart Installation Guide. 6. Specify the following information. • NAS name: Specify a name with 1 to 14 characters. The name supports letters (A to Z, a to z), numbers (0 to 9), and hyphens (-), but cannot end with a hyphen.
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TS-451D2 User Guide Note If your NAS is not listed, follow the instructions on the web page to specify the Cloud Key on the NAS. The installation wizard opens in the default web browser. 5. Create an account or sign in to myQNAPcloud.
TS-451D2 User Guide 19. Click Confirm. QTS is installed. Installing QTS Using an HDMI Connection Warning Installing QTS deletes all data on the drives. Back up your data before proceeding. 1. Connect an HDMI display to the NAS. 2. Connect a USB keyboard to the NAS or prepare the QNAP IR remote control (not available on all models).
TS-451D2 User Guide 5. Basic Operations This chapter describes basic NAS operations. Power Button Operation User Action Result Power on Press the button once. The device powers on. Power off Press and hold the button for 1.5 The device powers off.
TS-451D2 User Guide Reset Button Operation User Action Result Basic system reset Press and hold the button for 3 The following settings are reset to seconds. default: • System administrator password: The default password is the first MAC address in uppercase letters without special characters.
TS-451D2 User Guide USB One Touch Copy Button The USB One Touch Copy button allows you to copy data backups from a USB device to the NAS or from the NAS to a USB device. This feature supports incremental backups. The NAS only copies files that were modified or added after the last backup.
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TS-451D2 User Guide Status Description System Flashes green and red • The drive is being formatted. Status alternately every 0.5 seconds • The device is being initialized. • The operating system is being updated. • RAID rebuilding is in progress.
TS-451D2 User Guide Status Description Orange The network connection is operating at 1 Gbps. Flashes orange The device is being accessed from the network. The device is not connected to a network. 1 Gigabit Green The network connection is operating at 1 Gbps.
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TS-451D2 User Guide Duration Frequency Description Long beep (1.5 seconds) 3 (every 5 minutes) • A power error occurred. • The system fan is not functioning. • The fan module has been removed. • The storage pool is about to reach full capacity.
TS-451D2 User Guide 6. NAS Migration You can migrate data and settings from your current NAS to another NAS model with minimal disruptions by installing all the hard drives from the source NAS to the destination NAS. RAID configuration and other settings are retained on the destination NAS after migration.
TS-451D2 User Guide Data and Settings After NAS Migration Shared folders All shared folders and the downloaded files stored in them are retained. Warning To prevent data loss, back up and save encryption keys or passwords of encrypted shared folders in a safe place before migration.
TS-451D2 User Guide a. Remove the drives from the source NAS. b. Remove the drive trays from the destination NAS. 3. Install the drives. a. Install source NAS drives onto the destination NAS drive trays. b. Insert the drive trays into the destination NAS.
TS-451D2 User Guide Setting Description Password Specify a password that contains 1 to 16 characters from any of the following groups: • Letters: A to Z, a to z • Numbers: 0 to 9 • Special characters: . - _ ~ ! @ # $ % ^ & ( ) { } •...
TS-451D2 User Guide 8. Click Select. 9. Select the paired folders. Important • All subfolders and files in the selected folder are selected. • You can only sync up to 16 paired folders per job. a. Under the source, click A dialog box opens.
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TS-451D2 User Guide b. Click Import/Export Users. The Import/Export Users window appears. c. Select Export user and user group settings. d. Click Next. The NAS user and user group settings are exported as a file and downloaded onto your computer.
TS-451D2 User Guide 7. Troubleshooting This chapter describes basic troubleshooting information. Forcing Qfinder Pro or myQNAPcloud to Locate the NAS If Qfinder Pro or myQNAPcloud is unable to locate the NAS during QTS installation, the drives or data may be faulty.
TS-451D2 User Guide Recovering Unintentionally Removed Healthy Drives The NAS supports exclusive RAID recovery technology to recover failed RAID disk volumes from unintentional disconnection or removal of drives. Users can recover an inactive RAID 1, RAID 5, RAID 6, RAID 10, RAID 50, or RAID 60 volume from degraded mode.
TS-451D2 User Guide 8. Glossary Cloud Key Unique 8-digit code assigned to each NAS device myQNAPcloud Link Enables you to access the NAS over the internet without configuring complex port forwarding settings myQNAPcloud Provides various remote access services such as DDNS and myQNAPcloud Link...
TS-451D2 User Guide 9. Notices This chapter provides information about warranty, disclaimers, licensing, and federal regulations. Limited Warranty QNAP offers limited warranty service on our products. Your QNAP-branded hardware product is warranted against defects in materials and workmanship for a period of one (1) year or more from the date printed on the invoice.
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TS-451D2 User Guide Free Software Foundation, use the GNU General Public License for most of our software; it applies also to any other work released this way by its authors. You can apply it to your programs, too. When we speak of free software, we are referring to freedom, not price. Our General Public Licenses are...
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TS-451D2 User Guide tells the user that there is no warranty for the work (except to the extent that warranties are provided), that licensees may convey the work under this License, and how to view a copy of this License. If the interface presents a list of user commands or options, such as a menu, a prominent item in the list meets this criterion.
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TS-451D2 User Guide You may convey verbatim copies of the Program's source code as you receive it, in any medium, provided that you conspicuously and appropriately publish on each copy an appropriate copyright notice; keep intact all notices stating that this License and any non-permissive terms added in accord with section 7 apply to the code;...
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TS-451D2 User Guide the object code. If the place to copy the object code is a network server, the Corresponding Source may be on a different server (operated by you or a third party) that supports equivalent copying facilities, provided you maintain clear directions next to the object code saying where to find the Corresponding Source.
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TS-451D2 User Guide a. Disclaiming warranty or limiting liability differently from the terms of sections 15 and 16 of this License; or b. Requiring preservation of specified reasonable legal notices or author attributions in that material or in the Appropriate Legal Notices displayed by works containing it; or c.
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TS-451D2 User Guide An “entity transaction” is a transaction transferring control of an organization, or substantially all assets of one, or subdividing an organization, or merging organizations. If propagation of a covered work results from an entity transaction, each party to that transaction who receives a copy of the work also...
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TS-451D2 User Guide If conditions are imposed on you (whether by court order, agreement or otherwise) that contradict the conditions of this License, they do not excuse you from the conditions of this License. If you cannot convey a covered work so as to satisfy simultaneously your obligations under this License and any other pertinent obligations, then as a consequence you may not convey it at all.
TS-451D2 User Guide END OF TERMS AND CONDITIONS CE Notice This QNAP NAS complies with CE Compliance Class B. FCC Notice FCC Class B Notice This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: 1.