Virtual Disk Modification Operation Failed

What Caused the Problem?

A disk group has failed and cannot be repaired due to a modification operation failure. The Recovery Guru Details area provides specific information you will need as you follow the recovery steps.

Important Notes

You will need to delete the affected disk group using the Recovery Steps below.
The disk group may or may not appear Optimal in the storage management software, but will still need to be deleted to correct the logical error.
If the affected disk group (as denoted in the Details area) is in an Optimal or Partially Complete disk group state, then you can still back up the data before you delete the disk group using the Recovery Steps below.
If the affected disk group is in an Incomplete Disk Group state, then your only option is restoring data from backup media because there is not enough consistency information remaining in the disk group to read the data from the virtual disks.
Unlike a typical virtual disk failure, you can not re-initialize the virtual disks when a modification operation fails.
If the Summary area is reporting Failed Physical Disks that are associated with this disk group (as denoted in the Details area), then the physical disks must be replaced; however, replacing the failed physical disks will not correct this problem. Replacing physical disks associated with this disk group will result in the replacement physical disks appearing as unassigned physical disks.

Recovery Steps

If you have snapshot virtual disks associated with the affected disk group, these snapshot virtual disks will no longer be valid.

Delete all snapshot virtual disks associated with the affected disk group.

Refer to the Disk Group status in the Logical View of the Array Management Window (AMW) or in the Storage Array Profile to determine your backup options:

If...

Then...

The disk group state is Optimal or Partially Complete

AND

You do NOT have a recent backup of all the data on this disk group

Take the appropriate measures to back up the data that is on all of the virtual disks in the affected disk group.

When you are sure that all data is properly backed up, go to step 3.

The disk group state Incomplete or Missing

You already have a recent backup of all the data on this disk group

Go to step 3.

Highlight the affected disk group in the Logical View of the AMW, and then select the Disk Group >> Delete menu option.

Ensure that only the affected disk group that is listed in the Details area is selected in the Delete Disk Groups dialog, and then click the Delete button.

Using the Free Capacity, create a new disk group to replace the one you just deleted. You will also need to re-create the virtual disks that existed on the previous disk group.

Result: The virtual disks in the disk group are initialized, one at a time. When initialization starts on a virtual disk, the icon changes to Operation in Progress. When initialization is completed, all virtual disks in the disk group are Optimal.

Notes:

To monitor progress or change the rate of the initialization, select the 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.
Make sure you save this procedure by selecting Save As because once you perform step 6 and the failure is fixed, you will not be able to access the remaining steps from the Recovery Guru.

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, otherwise, go to step 7.

If desired, create any snapshots that you deleted in step 2.

Add the newly-created replacement virtual disks to the operating system. You may need to reboot the system to see the virtual disks.

Note: Do not start I/O to these virtual disks until after you restore from backup.

Restore the data for the virtual disks from backup media.