IBM Storwize V5010 Manual page 209

Figure 4-57 shows the dialog box that opens when you select Set Spare Goal. Define the
number of required spares and click Save.
Figure 4-57 Spare Goal panel
Set rebuild areas goal
This action is available only for distributed RAID arrays. Selecting Set Rebuild Areas Goal
enables you to set the number of rebuild areas required to protect the array from drive
failures. If the number of rebuild areas available does not meet the configured goal, an error is
logged in the event log. This error can be fixed by replacing the failed drives in the array with
new drives of a compatible drive class.
Figure 4-58 shows the dialog box that opens when you select Set Rebuild Areas Goal.
Define the representative number of required spares that will compose the rebuild area and
click Save.
Figure 4-58 Rebuild Areas Goal panel
Delete
Selecting Delete removes the array from the storage pool and deletes it.
Remember: An array does not exist outside of a storage pool. Therefore an array cannot
be removed from the pool without being deleted.
Chapter 4. Storage pools
187