Virtual Disk - Hot Spare in Use

What Caused the Problem?

One or more physical disks have failed, and hot spare physical disks have automatically taken over for the failed physical disks. The data on the virtual disks is still accessible. The Recovery Guru Details area provides specific information you will need as you follow the recovery steps.

Caution: Possible loss of data accessibility. Do not remove a component when either (1) the Service action (removal) allowed (SAA) field in the Details area of this recovery procedure is NO (), or (2) the SAA LED on the affected component is OFF (note that some products do not have SAA LEDs). Removing a component while its SAA LED is OFF may result in temporary loss of access to your data. Refer to the following Important Notes for more detail.

Caution: Electrostatic discharge can damage sensitive components. Always use proper antistatic protection when handling components. Touching components without using a proper ground may damage the equipment.

Important Notes

When a hot spare takes over for a failed physical disk, data from the failed physical disk is reconstructed on the hot spare. When you replace the failed physical disk, data is copied back from the hot spare to the new physical disk and the hot spare returns to Standby. You can replace the failed physical disk before reconstruction is completed on the hot spare. However, the copyback to the new physical disk will not occur until the reconstruction has completed.
Look at the virtual disk icons for the affected virtual disks in the Logical View of the Array Management Window. If any virtual disks display an Operation in Progress icon , reconstruction is still taking place on the hot spare. If all virtual disk icons are Optimal , reconstruction is completed.
Depending on how many hot spares you have created in the storage array, a virtual disk could remain Optimal and still have multiple failed physical disks (each one being covered by a hot spare).
Make sure the replacement physical disks have a capacity equal to or greater than the failed physical disks.
You can replace the failed physical disks while the affected virtual disks are receiving I/O.
Service Action Allowed Important Information:
- The Service action (removal) allowed field in the Details area indicates whether or not you can safely remove the component. If the SAA field is NO (), then the affected component must remain in place until you service another component first.
- The Service action LED on Component field in the Details area indicates whether or not a physical SAA LED is present on the hardware component. This field does NOT indicate whether the LED is ON or OFF (that indication is provided by the Service action (removal) allowed field).
- If a component does not have an SAA LED, then it is OK to remove the component when its fault LED is lit and the Service action (removal) allowed field = YES () in the Details area.
- The Service action (removal) allowed field shown in the Details area and the physical SAA LED on the hardware component (if supported) MUST match before you remove the affected component. In rare cases (such as multiple problems), the status of the LED and the SAA field may not match. If there is a mismatch, then you should NOT remove the component until these indications match.

Recovery Steps

1	Check the Details area to identify the failed physical disk.
2	Remove the physical disk (its fault indicator light should be on).
3	Wait 30 seconds, then insert the new physical disk. Its fault indicator light may be lit for a short time (one minute or less). Result: The affected virtual disks in the Logical View of the Array Management Window change to an Operation in Progress icon as the reconstruction/copyback operations take place. When reconstruction/copyback is completed, the virtual disks return to Optimal , and the hot spare physical disk returns to Standby. To monitor reconstruction progress on the affected virtual disks select the affected virtual disk, then select Virtual Disk >> Properties. Note that once the operation in progress has completed, the progress bar is no longer displayed in the properties dialog.
4	Repeat steps 1 through 3 for each failed physical disk.
5	Click the Recheck button to rerun the Recovery Guru. The failure should no longer appear in the Summary area. If the failure appears again, contact your technical support representative.