When a disk drive fails for any reason, it is represented in Adaptec Storage Manager with a red X .
To Recover if the Logical Device is Protected by a Hot Spare:
When a logical device is protected by a hot spare, if a disk drive in that logical device fails the hot spare is automatically incorporated into the logical device and takes over for the failed drive.
For instance, when a disk drive fails in a RAID 5 logical device, the logical device is automatically rebuilt (its data is reconstructed) using the hot spare in place of the failed drive.
Note! In Adaptec Storage Manager, the color of the hot spare changes from light-blue to dark-blue, showing that it is now part of a logical device.
To recover from the failure:
Remove and replace the failed disk drive.
Designate a new hot spare to protect the logical devices on that controller.
To Recover if the Logical Device is Not Protected by a Hot Spare:
When a logical device is not protected by a hot spare, if a disk drive in that logical device fails, remove and replace the failed disk drive. The controller detects the new disk drive and begins to rebuild the logical device.
For instance, when one of the disk drives fails in a RAID 1 logical device, the logical device is not automatically rebuilt. The failed disk drive must be removed and replaced before the logical device can be rebuilt.
If the controller fails to rebuild the logical device, check that the cables, disk drives,and controllers are properly installed and connected.
To Recover from Simultaneous Drive Failures in Multiple Logical Devices:
If there’s a disk drive failure in more than one logical device at the same time (one failure per logical device), and the logical devices have hot spares protecting them, the controller rebuilds the logical devices with these limitations:
A hot spare must be of equal or greater size than the failed disk drive it’s replacing.
Failed disk drives are replaced with hot spares in the order in which they failed. (The logical device that includes the disk drive that failed first is rebuilt first, assuming an appropriate hot spare is available.)
If there are more disk drive failures than hot spares, see "To Recover if the Logical Device is Not Protected by a Hot Spare”, above.
To Recover if it is a RAID 0 Logical Device:
Because RAID 0 volumes do not include redundancy, if a disk drive fails in a RAID 0 logical device, the data can not be recovered.
Correct the cause of the failure or replace the failed disk drives. Then, restore your data (if available).
To Recover if Multiple Drives Fail in the Same Logical Device:
Except in RAID 6 and RAID 60 logical devices, if more than one disk drive fails at the same time in the same logical devices, the data can not be recovered.
Correct the cause of the failure or replace the failed disk drives. Then, restore your data (if available).
Note! In some instances, RAID 10 and RAID 50 logical devices may survive multiple disk drive failures, depending on which disk drives fail.
To Recover if the Drive Shows a S.M.A.R.T Event:
A S.M.A.R.T event indicates that a physical drive is about to fail. If the drive is part of a logical device, you should change the drive state to failed before removing the drive to eliminate the risk of losing data.
In the Physical Devices View, select the bad drive.
Right-click Set drive state to failed.
Click Yes to confirm.
Replace the bad drive. The controller detects the new disk drive and begins to rebuild the logical device.
Note! You can use this procedure to replace a drive for others reasons. For example, you may need to replace an unwarranted drive.
To Remove a Failed Disk Drive Icon:
Note! You can only complete this task on disk drives that are not included in any logical device.
When a disk drive fails, it may still appear in Adaptec Storage Manager although it is no longer available. To see an accurate representation of your storage space and make it easier to monitor your disk drives, you can remove a failed disk drive from the Physical Devices View.
In the Physical Devices View, right-click the failed disk drive, then select Remove failed drive.