Rebuilding After Disk Drop on an LSI RAID Controller in WebBIOS
This document primarily introduces the detailed operation process for manually rebuilding after a disk drop in an LSI 8708EM2 SAS RAID array, where multiple insertions and removals of the disk prevent automatic Rebuild.
1. Press <ctl>+<H> to enter the LSI 8708EM2 SAS RAID controller. You will see Slot 1 disk as shown in the figure below.
Missing.
Note: If the state displayed under the LSI 8708EM2 SAS RAID controller is not as shown below, please hot-swap the offline hard drive under the controller.
and scan devices via Scan Devices to make it appear in the state shown below.
2. Select Physical view and press <Enter> to enter the disk physical status query;
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3. Move the cursor to FOREIN SLOT:1,SATA,HDD,930.390GB,Unconfigured Bad, i.e., the offline hard drive, and press <Enter>
to enter the MegaRAID BIOS Config Utility Drive interface; the current offline physical drive state
is Unconfigured Bad. Select make unconf good and click GO;
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4. The Physical Drive State changes to Unconfigured Good. Select Replace Missing PD and click Go;
5. The Physical Drive State changes to Offline. Select Rebuild Drive and click Go;
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7. Click PD Progress Info to view the Rebuild execution progress percentage;
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8. Return to the RAID controller home main interface to check that the disk status has changed to Rebuild;
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9. On the main interface, click PD Progress Info to re-enter the Rebuild disk and view the Rebuild execution progress percentage;
10. Status after Rebuild completion;
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11. Return to the controller home main interface to check that the RAID status has changed from the dropped disk state Degraded to Optimal,
and simultaneously the RAID card stops alarming;
Before Rebuild completes, the RAID controller remains in an alarm state until the rebuild is complete.
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The execution time is proportional to the disk capacity and server performance. You can click the small speaker icon on the menu to turn off the alarm.
No system data loss will occur during the Rebuild process.
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