Z820 / Z840 RAID Analysis and Configuration

The following explains processes for evaluating a Scan Data RAID in a HP Z820/Z840 and steps to remedy it if needed.

The following command shows the Scan Disk status. Use “gre-raid -q” command at root user.

Open Terminal, and logon as root.

(Example)

[root@host]# gre-raid -q

Check Consistency on VD #0 is not in progress.
Background Initialization on VD #0 is not in Progress.
Number of Physical Drives on Adapter 0: 5
Disk Array Chassis Layout - Current
        

                                           Top
|====================||====================|
|              0: Passed                ||             1: Passed                  |
|====================||====================|
|              2: Passed                ||             3: Passed                  |
|====================||====================|
|              4: Passed                ||            5: Not used                |
|====================||====================|
|             6: Not used              ||            7: Not used               |
|====================||====================|
                                         Bottom

        

Virtual Drive State: Good
gre-raid: success

        

There are four status of result “gre-raid -q”.

• Passed: Good and Recognized

• Failed: Disk is unconfigured bad or failed.

• Empty: Disk is not inserted or not recognized.

• Unconfig good: Good but need to rebuild.

The following procedures provide solutions to RAID issues based on the results of Troubleshooting. After each, return the “gre-raid -q” command in Troubleshooing.

• If all drives are marked Passed
  • See Appendix II: RAID Performance Test.
• If all drives are marked Empty
  • The load from cold may have failed.
  • See Appendix IV: All Drives Empty.
• If one or more drives are marked Failed
  • See Appendix I: Clear RAID Configuration.
  • If hard drive continues to be marked Failed, replace hard drive.
• If a drive slot reports Empty but has a drive in the slot
  • Ensure hard drive is fully inserted into RAID slot or reseat hard drive. Clasp should fully lock shut, and hard drives should be flat on the front.
  • Confirm the cable connection between the disk and RAID controller card.
  • Then see Appendix III: Reconfig for more information.
• If one or more drive is marked Unconfig Good
  • Run “reconfig” and select Rebuild Scan Disk Array or Recreate Scan Disk Array
  • See Appendix III: Reconfig for more information.

1. Shut down the system and recycle the console power.

2. Press [F10] when HP logo is displayed.

3. In Hewlett-Packard Setup Utility, select Advanced → Slot Setting.

   Figure 1. Hewlett-Packard Setup Utility (Z820)

   

   Figure 2. Hewlett-Packard Setup Utility (Z840)

   

4. In the Slot Settings menu, change the Slot 4 (RAID controller) Option ROM Download setting to Enabled. And hit F10 key to accept the change.

   note:

   Do not change the slot 2 setting.

   Figure 3. Slot Settings Menu (Z820)

   

   Figure 4. Slot Settings Menu (Z840)

   

5. Select File (or Main) → Save Changes and Exit to exit Hewlett-Packard Setup Utility.

   Figure 5. Menu of Hewlett-Packard Setup Utility (Z820)

   

   Figure 6. Menu of Hewlett-Packard Setup Utility (Z840)

   

6. When HP logo is displayed, hit Enter key.

   Figure 7. HP Logo

   

7. When the following RAID information is displayed, press CTL+H.

   Figure 8. RAID Information

   

8. Click “Start” in Adapter Selection screen.

   Figure 9. Adapter Selection screen

   

9. Click “Clear” in the next screen.

   note:

   If this page doesn't appear, go to step 11.

   Figure 10. Clear Foreign Config

   

10. Click “Yes” in the next screen.

    note:

    If this page doesn't appear, go to step 11.

    Figure 11. Confirm Page

    

11. The WebBIOS screen will be displayed as follows.

    Figure 12. WebBIOS Screen

    

12. Click Configuration Wizard from left side menu.

13. In the Configuration Wizard menu, select Clear Configuration.

    Figure 13. Configuration Wizard

    

14. In the next screen select Yes.

    Figure 14. Configuration Wizard - Confirm Page

    

15. Enter Physical View.

    Figure 15. Enter Physical View

    

16. After the Configuration wizard completes the Physical View will display all drives as “unconfigured Good” or “unconfigured Bad”. The bad drives will need to made good, and then erased.

17. Click on the Unconfigured Dad drives.

    Figure 16. Physical View showing Unconfigured Bad drives

    

18. Click on “Make Unconf Good”, then click “Go”

    Figure 17. Individual drive menus

    

19. Click on "Drive Erase", then click "Go".

    Figure 18. Drive Erase option

    

20. Click "Simple", then click "OK".

    Figure 19. Drive Erase

    

21. Click "Yes".

    Figure 20. Drive Erase confirmation

    

22. Confirm all Scan Data disk shows Unconfigured Good in Physical View screen.

    Figure 21. Physical View

    

23. Click “Exit” from the menu and select Yes in the next screen.

    Figure 22. Exit Application

    

24. Reboot the system by pressing CTL+ALT+DEL keys.

25. Press [F10] when HP logo is displayed.

26. In Hewlett-Packard Setup Utility, select Advanced → Slot Setting.

    Figure 23. Hewlett-Packard Setup Utility (Z820) - Slot Setting

    

    Figure 24. Hewlett-Packard Setup Utility (Z840) - Slot Setting

    

27. In the Slot Settings menu, change the Slot 4 (RAID controller) Option ROM Download setting to Disabled and hit F10 key to accept the change.

    note:

    Do not change the slot 2 setting.

    Figure 25. Slot Settings Menu (Z820)

    

    Figure 26. Slot Settings Menu (Z840)

    

28. Select File (or Main) → Save Changes and Exit to exit Hewlett-Packard Setup Utility.

    Figure 27. Menu of Hewlett-Packard Setup Utility (Z820)

    

    Figure 28. Menu of Hewlett-Packard Setup Utility (Z840)

    

The following command tests the performance of the RAID array. Use “gre-file-perf -s 25 -c /raw_data” command at root user. This command will take approximately 10 minutes.

[root@host]# gre-file-perf -s 25 -c /raw_data

When all drives are marked either Passed or Unconfig Good, use “reconfig”command at root user.

If “Rebuild Scan Disk Array?” is available, use that. Otherwise use “Recreate Scan Disk Array?”.

• A: Rebuild Scan Disk Array will repair the Disk Array if only one drive has encountered an issue

• B: Recreate Scan Disk Array will destroy all raw scan data on the Disk Array and rebuild.

Figure 29. Reconfig Menu

If all drives are marked empty and these additional lines of text appear as seen in the picture below:

Figure 30. All Drives Empty

The load from cold failed to install all required packages. A load from cold is required to fix this.