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NEC Express5800 series User Manual

NEC Express5800 series User Manual

Megaraid storage manager
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NEC Express5800 Series

MegaRAID Storage Manager™

User's Guide
- Windows Edition -
7th Edition
12-2006
808-882425-676-G

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  • Page 1: Megaraid Storage Manager

    NEC Express5800 Series MegaRAID Storage Manager™ User's Guide - Windows Edition - 7th Edition 12-2006 808-882425-676-G...
  • Page 2 (5) NEC assumes no liability arising from the use of this product, nor any liability for incidental or consequential damages arising from the use of this manual regardless of Item (4).

  • Page 3: Table Of Contents

    Contents Overview........................... 1 MegaRAID Storage Manager™..................1 Installing and Uninstalling MSM .................... 3 MSM Operation Environment (Server Specification)............3 Installing and Uninstalling MSM in Server................. 4 2.2.1 Installing MSM to Server ....................5 2.2.2 Uninstalling MSM from Server..................7 MSM Operation Environment (Management PC) ............. 8 Installing and Uninstalling MSM in Management PC ............
  • Page 4 (This page is intentionally left blank.)

  • Page 5: Overview

    Overview 1 1. Overview 1.1 MegaRAID Storage Manager™ MegaRAID Storage Manager™ (hereafter abbreviated for MSM) is an application that locally or remotely monitors and manages the MegaRAID Storage Systems(SAS/SATA). MegaRAID Storage Systems(SAS/SATA) are following systems. • LSI Logic Embedded MegaRAID(tm) •...
  • Page 6 2 Overview Auto array rebuild feature in array degrading MSM supports the hot-spare rebuild executed at the insertion/removal of a disk and the hot-spare rebuild in which a hot-spare disk is defined previously and used at the shift of the array to degrading state.

  • Page 7: Installing And Uninstalling Msm

    2.1 MSM Operation Environment (Server Specification) The following shows the hardware and software operation environment (sever specification) required to operate MSM: Hardware Server: NEC Express5800/50,100,600 series server supporting following MegaRAID Storage Systems(SAS/SATA). • LSI Logic Embedded MegaRAID™ • N8103-90 Disk Array Controller(External SAS HDD) •...

  • Page 8: Installing And Uninstalling Msm In Server

    4 Installing and Uninstalling MSM 2.2 Installing and Uninstalling MSM in Server This section describes the installation and uninstallation of MSM in an NEC Express5800 series server equipped with the MegaRAID controller. IMPORTANT: Only users authorized as administrators are permitted to install and uninstall MSM.

  • Page 9: Installing Msm To Server

    Installing MSM to Server Install MSM in the following procedure: 1. Insert the NEC EXPRESSBUILDER CD-ROM into the CD-ROM drive of your computer. 2. Right-click [Software Setup] in the [Master Control Menu] appearing on the screen and click [MegaRAID Storage Manager]. Then the [Selecting Installation or Uninstallation] dialog box appears.
  • Page 10 6 Installing and Uninstalling MSM 4. The installation is started. When MSM has been installed, the [Setup finished] dialog box appears. Select [Yes, I want to restart my computer now], and click [OK]. NOTE: After selecting system reboot at the termination of MSM installation, the background of the setup may remain as it is, rarely.

  • Page 11: Uninstalling Msm From Server

    MSM. Close this popup for warning, there is no problem. 1. Insert the NEC EXPRESSBUILDER CD-ROM into the CD-ROM drive of your computer. 2. Right-click [Software Setup] in the [Master Control Menu] appearing on the screen and click [MegaRAID Storage Manager]. Then the [Selecting Installation or Uninstallation] dialog box appears.

  • Page 12: Msm Operation Environment (Management Pc)

    The following shows the hardware and software operation environment (management PC specification) required to operate MSM: Hardware NEC Express5800/50,100,600 series. PC/AT compatible machine (equipped with Intel PentiumⅢ CPU or higher) Remaining capacity in hard disk drive: 60MB or larger Software...

  • Page 13: Installing Msm To Management Pc

    2.4.1 Installing MSM to Management PC Install MSM in the following procedure: 1. Insert the NEC EXPRESSBUILDER CD-ROM into the CD-ROM drive of your computer. 2. Run MSM.EXE contained in the following folder: \MSM\VIVA\MSM.EXE 3. The screen shown below appears. Click [Next].
  • Page 14 10 Installing and Uninstalling MSM 6. The screen shown below appears. Click [Next]. To change the installation folder, click [Change] and specify a new installation folder. 7. The screen shown below appears. Select [Client] and click [Next]. 8. The screen shown below appears. Click [Install]. 9.

  • Page 15: Uninstalling Msm From Management Pc

    Applications] or [Add or Remove Programs] in the Control Panel. Always follow the procedure described in this section for the uninstallation. 1. Insert the NEC EXPRESSBUILDER CD-ROM into the CD-ROM drive of your computer. 2. Run MSM.EXE contained in the following folder: \MSM\VIVA\MSM.EXE 3.
  • Page 16 12 Installing and Uninstalling MSM 5. The screen shown below appears. Click [Remove]. 6. The screen shown below appears. Click [Finish]. Now the uninstallation is completed.

  • Page 17: Operation

    Operation 13 3. Operation This chapter describes how to start MSM and how to operate MSM. The supported features of MSM are depended on MegaRAID Storage Systems(SAS/SATA). Unsupported features are not shown in the MSM menu. See also Section "4.1 Supported function of MegaRAID Systems"...

  • Page 18: Controlling Megaraid Storage System With Local/Remote Computer

    14 Operation 3.1.1 Controlling MegaRAID Storage System with Local/Remote Computer To control MSM with local and/or remote computers, start MSM in the following procedure to display the array configuration screen. NOTES: To control MSM with a remote computer, MSM must also be installed in the remote computer.
  • Page 19 Operation 15 A circle icon appears on each host in the server selection screen. The host status is shown by one of the following colors: Green: Normal operation Yellow: Occurrence of disk array degrading Red: Occurrence of configuration error 3. Operate the following on the login screen. In the [Login Mode] field, select [Full Access] to change the array configuration or [View Only] to see the configuration only.

  • Page 20: Msm Operation Screen

    16 Operation 3.2 MSM Operation Screen An example of the MSM screen is shown below (after logged in, the screen shown below appears). MSM has four screen interfaces as follows: (1) Menu bar (2) Physical/Logical View (3) Properties/Operations/Graphical view (4) Event Viewer The following operations are permitted for the above interfaces: A feature can be selected from the menu bar.

  • Page 21: Menu Bar

    Operation 17 3.2.1 Menu Bar Selectable objects on the menu bar can also be selected/executed by right-clicking them. The menu bar appears as follows: The menus are described below. [File] menu On the [File] menu, you can select the following items. [Rescan]: Rescan the arrays to acquire the array configuration information again.
  • Page 22 18 Operation [Log] menu On the [Log] menu, you can select the following items: [Save Log]: Save the logs appearing in the Event Viewer to the specified file. [Clear Log]: Clear the logs appearing in the Event Viewer. [View Saved Log]: Allow you to view the logs saved in file with [Save Log].

  • Page 23: Physical/Logical View

    Operation 19 3.2.2 Physical/Logical View On the Physical/Logical View, the physical and logical drives connected to the disk array controller are displayed in the tree format, respectively. If you put the cursor on a displayed object and right-click the object, then you can select and run an available feature.
  • Page 24 20 Operation [Scan For Foreign Config]: Read configuration info from HDD and try to rebuild array by using that info. This feature is not supported. Do not use the feature. Menu appearing when right-clicking physical drive [Context Menu] : The menu appearing when right-clicking Physical Drive varies depending on the status of the physical drive.
  • Page 25 Operation 21 When physical drive is in offline status: [Make Drive Online]: Makes the physical drive online. The feature is dedicated for maintenance. Do not use the feature. [Mark Physical Drive as Missing]: This feature is not supported yet. Do not use the feature. [Rebuild]: Starts the rebuild processing.
  • Page 26 22 Operation When physical drive is not used yet: [Locate Physical Drive]: Start to blink LED of Physical disk. [Stop Locating Physical Drive]: Stop to blink LED of Physical disk. [Make Global Hotspare]: Create a Global hot-spare disk. [Prepare For Removal]/ [Undo Prepare For Removal]: Do not use the feature.
  • Page 27 Operation 23 Menu appearing when right-clicking Virtual Disk [Context Menu] : The menu appearing when right-clicking Virtual Disk varies depending on the status of the logical drive. Sample menus are shown below in logical drive states. When logical drive operates normally: [Delete Virtual Disk]: Select this feature to delete the logical drive.
  • Page 28 24 Operation When logical drive is degraded: [Check Consistency] disappears to be unavailable while it is displayed if the logical drive operates normally. When logical drive is subject to consistency check or rebuild processing: [Delete Virtual Disk]: Select this feature to delete the logical drive. [Locate Virtual Disk]: Start to blink LED of Physical disks consists of Virtual disk.

  • Page 29: Properties /Operations/Graphical View

    Operation 25 3.2.3 Properties /Operations/Graphical View The Properties/Operations/Graphical view indicates the information on controllers and drives selected in the Physical/Logical View in the Properties view, the setups/executions of available features in the Operations view, and the capacities of graphical drives in the Graphical view. Properties Indicate the information on selected controllers and drives.
  • Page 30 26 Operation [Start Patrol Read / Stop Patrol Read]: Start or stop the Patrol Read. The screen display varies depending on how the Patrol Read is executed. See Section "3.5.1 Manual Execution of Patrol Read" for the execution of the Patrol Read. [Set Adjustable Task Rates]: Specify the preferential assignment of the system processing capacity with a value between 0% and 100% when the rebuild, Patrol Read, or check consistency feature is...
  • Page 31 Operation 27 When physical drive is selected (under rebuild processing): [Abort Rebuild]: Abort the rebuild processing. [Locate Physical Drive]: Start to blink LED of Physical disk. [Stop Locating Physical Drive]: Stop to blink LED of Physical disk. When physical drive is selected (in offline status): [Make Drive Online]: Make the physical drive online.
  • Page 32 28 Operation When physical drive is selected (being hot-spare disk): [Remove Hotspare]: Release the setting as a hot-spare disk. [Locate Physical Drive]: Start to blink LED of Physical disk. [Stop Locating Physical Drive]: Stop to blink LED of Physical disk. When physical drive is not used yet: [Locate Physical Drive]: Start to blink LED of Physical disk.
  • Page 33 Operation 29 [Prepare For Removal]/ [Undo Prepare For Removal]: Do not use the feature. It's the function which stops and restarts a revolution of a spindle motor of HDD, but these are the operation which has no need in particular in an HDD exchange. When logical drive is selected (in normal state): [Delete Virtual Disk]: Select this feature to delete the logical drive.
  • Page 34 30 Operation When logical drive is selected (in execution of consistency check): [Delete Virtual Disk]: Select this feature to delete the logical drive. [Locate Virtual Disk]: Start to blink LED of Physical disks consists of Virtual disk. [Stop Locating Virtual Disk]: Stop to blink LED of Physical disks consists of Virtual disk.
  • Page 35 Operation 31 Graphical View Indicate the capacity of the selected drive graphically. The following shows the sample displays of physical and logical drives. Sample display of physical drive If you select a logical drive from the [Select Virtual Disk (VD)] list as shown to the left in the figure below, you can check the area in which physical drives are used for the selected logical drive as shown to the right in the figure.

  • Page 36: Event Viewer

    32 Operation 3.2.4 Event Viewer The Event Viewer indicates the log information acquired in the period from the time at which the server is started. Right-click the Event Viewer. [Save Log]: Save the logs appearing in the Event Viewer to the file. [Clear Log]: Clear the logs appearing in the Event Viewer.

  • Page 37: Creating And Deleting Logical Drive (Array)

    Operation 33 3.3 Creating and Deleting Logical Drive (Array) The creation method of a logical drive and the deletion method are explained here. If you create logical drives, do not reuse failure HDDs. Please always use new HDDs. MSM allows the following logical drives to be created: RAID 0 (data striping with more than one hard disk drive) RAID 1 (data mirroring with two hard disk drives) RAID 5 (Data striping including parity with more than two hard disk drives)

  • Page 38: Creating Logical Drive

    34 Operation 3.3.1 Creating Logical Drive You can create a logical drive on the Configuration Wizard appearing by right-clicking the controller in the Physical/Logical View and clicking [Advanced Operations] → [Configuration] → [Configuration Wizard]. As the configuration type, you can select any of Auto Configuration, Manual Configuration or Guided Configuration.

  • Page 39: Auto Configuration

    Operation 35 3.3.1.1 Auto Configuration The auto configuration mode allows the draft of the logical drive configuration to be created automatically depending on the status of unused hard disk drives. The setting procedure is described below. 1. Click [Auto Configuration] in [Mode Selection] of the Configuration Wizard. 2.

  • Page 40: Manual Configuration

    36 Operation Redundancy Type [No Redundancy]: Do not provide redundant array configuration. [With Redundancy]: Provide redundant array configuration. 3. Click [Finish] to create a logical drive. 3.3.1.2 Manual Configuration The manual configuration mode allows a logical drive to be created according to a specific request. The setting procedure is described below.
  • Page 41 Operation 37 4. Set parameters in Virtual Disk Properties appropriately and click [Accept]. Then click [Next]. [RAID Level]: Select the RAID level of the array. [Size (in MB)]: Set the capacity of the logical drive to be created. [Volume ID]: Leave the initial setting value unchanged.
  • Page 42 38 Operation [IO Policy]: Select either Direct IO or Cached IO. The default setting is Direct IO. [Access Policy]: Select Read Write, Read Only, or Blocked. The default setting is Read Write. [Disk Cache Policy]: Select Unchanged, Enabled or Disabled. The default setting is Unchanged. [Init State]: Select the logical drive initialization procedure out of No Initialization, Fast Initialization and Full Initialization.
  • Page 43 Operation 39 3.3.1.3 Guided Configuration The guided configuration mode allows a logical drive to be created by specifying setting items sequentially. The setting procedure is described below. 1. Click [Guided Configuration] in the [Mode Selection] of the Configuration Wizard. 2. Select [Redundancy] and [Existing Arrays] options and specify the number of logical drives to be created in [Desired Number of Virtual Disks].
  • Page 44 40 Operation [Don’t use Existing Arrays]: Do not use existing arrays. [Use Existing and New Arrays]: Use both existing and new arrays. 3. Specify the number of logical drives to be created for each RAID and its capacity in Virtual Disk Count and Total Capacity, respectively.

  • Page 45: Deleting Logical Drive

    Operation 41 [Init State]: Select the logical drive initialization procedure out of No Initialization, Fast Initialization and Full Initialization. The default setting is No Initialization. NOTE: Depending on the disk array controller you use, some setting values may be restricted for stable system performance and operation.Refer to manuals coming with the Disk array controller and server for the settings previously.

  • Page 46: Check Consistency Feature

    42 Operation 3.4 Check Consistency Feature The check consistency feature checks consistency and automatically corrects data if some inconsistency is detected. IMPORTANT: The Check Consistency function and the Patrol Read function allow you to find the defects (due to degradation such as aging) in files of low access frequency and unused areas as soon as possible.
  • Page 47 Operation 43 2. Check one or more logical drives to be subject to the check consistency in [Select Virtual Disks] and click [Start]. [Select All]: Check all logical drives. [Deselect All]: Uncheck all logical drives. 3. The check consistency check is executed. Click the [×] button at the upper right corner of the screen to close it.
  • Page 48 44 Operation Starting execution on [Operations] tab 1. Select a logical drive on the Logical view and select the [Operations] tab. 2. Check [Check Consistency] and click [Go]. 3. The consistency check is executed. Select [Group Operations] → [Show Progress] on the menu bar to see the progress of the execution.

  • Page 49: Canceling Check Consistency

    Operation 45 3.4.2 Canceling Check Consistency The check consistency can be cancelled in the following procedure. Check consistency canceling procedure 1. Select [Group Operations] → [Show Progress] on the menu bar. 2. The Group Show Progress screen appears. Click [Abort] to the right of the progress indication. [Abort All]: With more than one logical drive being subject to the check consistency, allows the check consistency to be canceled for all the logical drives...

  • Page 50: Patrol Read Feature

    46 Operation 3.5 Patrol Read Feature The Patrol Read feature operates in physical drives configuring all arrays including hot-spare disks to detect errors and recover the system from the errors if they are detected. IMPORTANT: The Check Consistency function and the Patrol Read function allow you to find the defects (due to degradation such as aging) in files of low access frequency and unused areas as soon as possible.
  • Page 51 Operation 47 To interrupt the Patrol Read being executed, click [Operations] → [Stop Patrol Read].

  • Page 52: Scheduling Patrol Read

    48 Operation 3.5.2 Scheduling Patrol Read The Patrol Read can be scheduled in the following procedure. Patrol Read scheduling procedure 1. Select a controller on the Physical/Logical View. Then select [Operations] . 2. Check [Set Patrol Read Properties]. 3. The schedule setting screen shown below appears. Change the Operation Mode to [Auto]. If [Auto] is selected already, the mode change is not required.
  • Page 53 Operation 49 [Execution Frequency]: Specify the interval at which the Patrol Read is executed. You can set the interval in hours, minutes, or seconds. NOTES: If you shutdown the server on the way of manual Patrol Read, it is aborted. Execute the Patrol Read again when the server is started.

  • Page 54: Rebuild Feature

    50 Operation 3.6 Rebuild Feature The rebuild feature can recovers a degraded array. Before the feature can be used, the defected hard disk drive must be replaced with a normal hard disk drive. The rebuild can be done in the following three ways. [Hot-swap rebuild]: This method provides rebuild by replacing a hard disk drive defected during system operation with a normal hard disk drive.

  • Page 55: Hot-Swap Rebuild

    Operation 51 3.6.1 Hot-swap Rebuild The feature can be done in the following procedure: 1. Find the defected hard disk drive. The following figure shows a sample display in MSM. The icon shows a degraded logical drive. The icon shows a defected hard disk drive.

  • Page 56: Hot-Spare Rebuild

    52 Operation 3.6.2 Hot-spare Rebuild 3.6.2.1 Hot-spare Disk Setting Procedure Global hot-spare setting procedure 1. Specify an unused hard disk drive shown on the Physical view and right-click it. 2. Select [Make Global Hotspare] in the menu displayed by right-clicking. 3.

  • Page 57: Reconstruction Feature

    Operation 53 3.7 Reconstruction Feature The reconstruction feature allows you to increase in the capacity of an existing array and/or change its RAID level. IMPORTANT: Execution of reconstruction It is recommended that the partitions on a logical drive are always backed up before the addition of the capacity of the array so that proper measures can be taken at the occurrence of an unexpected event.
  • Page 58 54 Operation The reconstruction is divided into three types; Add Drive, Remove Drive and Change RAID Level. [Add Drive]: Add a physical drive to the logical drive to increase in the capacity of the array. [Remove Drive]: Removes the physical drive from the logical drive and converts the RAID level to RAID 0.
  • Page 59 Operation 55 2. Select the physical drive to be added from the upper list and click the button to move the physical drive to the lower list. Then click [Next]. 3. The physical drive to be added appears with red characters. Select the RAID level after the expansion from [New RAID Level] and click [Finish].
  • Page 60 56 Operation 3.7.1.2 Remove Drive This feature removes the physical drive from the logical drive and converts the RAID level to RAID 0. The procedure is described below. 1. Click [Remove Drive] in Reconstruction Mode of the Reconstruction Wizard. 2. Select the physical drive to be removed from the upper list and click the button to move the physical drive to the lower list.
  • Page 61 Operation 57 3.7.1.3 Change RAID Level This feature converts the RAID level to RAID 0. The procedure is described below. 1. Click [Change RAID Level] in Reconstruction Mode of the Reconstruction Wizard. 2. Select RAID 0 from New RAID Level and click [Finish]. 3.

  • Page 62: Help

    NOTE: The help normally attached to MSM includes the features unsupported by the NEC Express5800 series machines and the features on array boards unsupported by the NEC Express5800 series servers. See the relevant descriptions in this manual for the supported features. Version confirmation procedure Selecting [Help] →...

  • Page 63: Miscellaneous Information

    Miscellaneous Information 59 4. Miscellaneous Information 4.1 Supported function of MegaRAID Systems Supported function of MSM depends on the MegaRAID Systems. See below for detail. Remarks MegaRAID Systems Embedded MegaRAID: LSI Logic Embedded MegaRAID(tm) N8103-90: N8103-90 Disk Array Controller(External SAS HDD) N8103-91: N8103-91 Disk Array Controller(Internal SAS HDD) N8103-99:...

  • Page 64: How To Confirm The Type Of Hot Spare Disks

    60 Miscellaneous Information 4.2 How to confirm the type of Hot Spare Disks You could confirm the type of Created Hot Spare Disks by MSM. There are 2type of Hot Spare Disk, "Global Hot Spare Disk" and "Dedicated Hot Spare Disk". How to confirm •...

  • Page 65: Cautions And Restrictions

    CAUTIONS AND RESTRICTIONS 61 5. CAUTIONS AND RESTRICTIONS 5.1 Common Cautions and Restrictions for MegaRAID Storage Systems(SAS/SATA) Installing / uninstalling of MSM MSM temporarily uses a dynamic port number (49152 or above) during installation. MSM automatically releases the port at the end of installation. If MSM is installed in a computer in which OS supporting Windows firewall such as Windows XP is installed, the "Important warning on Windows security"...
  • Page 66 62 CAUTIONS AND RESTRICTIONS The MSM log may be reviewed to see accesses from other clients. You can specify the local users only as the Administrators member in the "User Name" field of MSM login window. You can not specify domain users which has Administrators right.
  • Page 67 It is recommended that "Check Consistency" or "Patrol Read" is periodically performed to detect defects due to the fails of HDDs. Note that the icons of events reported by the NEC ESMPRO report feature are all displayed green on NEC ESMPRO (they seem information events).

  • Page 68: Cautions And Restrictions For N8103-90 Disk Array Controller(External Sas Hdd) And N8103-91 Disk Array Controller(Internal Sas Hdd)

    64 CAUTIONS AND RESTRICTIONS 5.2 Cautions and Restrictions for N8103-90 Disk array controller(External SAS HDD) and N8103-91 Disk array controller(Internal SAS HDD) MSM Operation "Date/Time" of MSM Logs is sometimes shown as "xx seconds from reboot". In this case, please check the Application Log of System Events. Every time MSM is started when an additional battery (N8103-94) is not attached with, the next message is output by MSM log and event log (application).
  • Page 69 CAUTIONS AND RESTRICTIONS 65 • To avoid selecting wrong drives, it is highly recommended to check them properly by executing ‘Locate Physical Drive’ or ‘Locate Virtual Disk’ operation on MSM.

  • Page 70: Cautions And Restrictions For Lsi Logic Embedded Megaraid

    66 CAUTIONS AND RESTRICTIONS 5.3 Cautions and Restrictions for LSI Logic Embedded MegaRAID™ MSM Operation MSM can not set "Virtual Disk Properties" for several "Virtual Disks" at the same time. If you want to set "Virtual Disk Properties" to the second Virtual Disk and all subsequent Disks, select "Rescan"...
  • Page 71 CAUTIONS AND RESTRICTIONS 67 Guided Configuration". Miscellaneous MSM logs are shown as GMT. The system event logs are shown correctly by local time. If you use the sort feature of MSM logs, restart MSM to display logs in order of time. Task Rates is not supported.

  • Page 72: Appendix A Report Monitoring

    Report Monitoring Appendix A Event messages associated with the MegaRAID Storage system can be displayed on the NEC ESMPRO Manager. The setting varies depending on the environment as follows: To monitor messages with the NEC ESMPRO Manager operating on a machine other than the server to which the monitored MegaRAID is connected, take the following procedure on the machine.
  • Page 73 The event IDs in the table below are decimal numbers. Mark "√" in the Manager column indicates the transmission of the report to NEC ESMPRO Manager. Mark "√" in the Alive column indicates the transmission of the report to the express report service. Every report is sent as information.
  • Page 74 70 CAUTIONS AND RESTRICTIONS Consistency Check corrected If the error occurs frequently, take the √ medium error: preventive replacement of physical drives into account. Consistency Check detected Take the preventive replacement of physical √ √ uncorrectable multiple medium drives into account. errors: Consistency Check failed on Take the preventive replacement of physical...
  • Page 75 CAUTIONS AND RESTRICTIONS 71 Rebuild failed due to target The target physical drive may be damaged. √ √ drive error: Take the replacement of the physical drive into account. Rebuild started: This message rebuilding starting √ √ notification. The action is unnecessary. Rebuild automatically started: This message...
  • Page 76 72 CAUTIONS AND RESTRICTIONS Communication lost Check the connection of the enclosure. √ √ enclosure: √ √ Fan failed on enclosure: Check the operation of the enclosure fan. √ √ Fan removed on enclosure: Check the connection of the enclosure fan. Power supply failed...
  • Page 77 CAUTIONS AND RESTRICTIONS 73 FAILED Test: The test detects an error. Take the √ √ replacement of the disk array controller into account. NVRAM is corrupt; reinitializing If the error occurs frequently, take the √ preventive replacement of the disk array controller into account.

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