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If a disk that you are using in a failover cluster has failed, you can use Repair (on the General tab of the Properties sheet) to assign a different disk.
Repair button (for a disk)
When you click this button, you can stop using a failed disk and assign a different disk to this service or application. The disk that you assign must be one that can be used for clustering but is not yet clustered.
For more information about disks that can be used for clustering, see "List Potential Cluster Disks" in Understanding Cluster Validation Tests: Storage.
Before using the Repair button, expose a LUN to each node of the cluster, but do not add that LUN to the cluster (through the Failover Cluster Manager snap-in).
You can restore the data to the disk before or after using the Repair button.