Partially Complete Array

What Caused the Problem?

One or more drives are missing from an array. Because of the RAID configuration of the array, there are still enough drives remaining that the logical drives can continue servicing I/O. However, the array may not be able to continue I/O if more drives are removed or fail.

The Recovery Guru Details area provides specific information you will need as you follow the recovery steps.

 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

Recovery Steps

If... Then...
You removed the drives - either inadvertently or you need to replace the drives Go to "Completing a Drive Replacement."

You removed the drives because you intend to export these drives to another storage subsystem

Go to "Completing an Array Export."

You have inserted drives from another storage subsystem and already selected the Force Import option
If... Then...
The missing drives were not imported with the rest of the drives because they were damaged Go to "Completing a Drive Replacement."

You want to import the original drives that were associated with the array in the source storage subsystem

Go to "Completing an Array Import."

Completing a Drive Replacement

1

If... Then...
You inadvertently removed the drives
  • Reinsert all removed drives.
  • Wait for all logical drives and arrays to display an optimal status.
  • Go to step 3.

You want to use new drives or Unassigned drives as replacements

Verify that any newly inserted drives are:

  • A capacity equal to or greater than the failed drives you removed.
  • Certified for use in this storage subsystem.

Go to step 2.

2 Assign a drive to take over for the Missing drive by completing the following steps:
a Refer to the Details area to find out which array has been affected.
b Highlight the affected array in the Logical View of the Subsystem Management Window (AMW), and then select the Array >> Replace Drives menu option.
c From the Failed and Missing Drives table in the Replace Drives dialog, select the Missing drive that corresponds to the to the slot location reported in the Details area.
d Select an appropriate replacement drive, and then click the Replace Drive button.

Notes:

  • For additional assistance using the Replace Drives dialog, refer to the online help.
  • When the Replace Drive process begins, data is reconstructed on the new drive using information on the other drives comprising the array. This reconstruction should begin automatically. The drive's fault indicator lights will go off and the activity indicator lights of the drives in the array will start flashing.
  • If you are replacing a drive in a storage subsystem that contains hot spares, data reconstruction will start on the hot spare before you insert the new drive. The data on the replacement drive may not be reconstructed until after it has completed the process on the hot spare.
e When the drive reconstruction completes and the array is Optimal, go to step 3.
3

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.

Completing an Array Export

1

Reinsert all of the missing drives associated with this array into the original slots. The Recovery Guru Details area provides the physical location of the missing drives as well as the affected array.

2

Wait until the array and its associated logical drives display optimal status, and then go to step 3.

3

From the Logical View of the Subsystem Management Window, select the array you want to export, and then select the Advanced >> Maintenance >> Export Array menu option.
4 Follow the instructions in the Export Array wizard to successfully export the array.
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.

Completing an Array Import

1

Insert all of the missing drives associated with this array with the original drives from the source storage subsystem. The Recovery Guru Details area provides the physical location of the missing drives as well as the affected array.  If the original drives are not available, you can also use the Replace Drive option in the storage management software to reconstruct other unassigned drives in the storage subsystem to take over for the missing drives.

2

Wait until the array and its associated logical drives display optimal status, and then go to step 3.

3

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.