Use cases for disk replacement

The following section describes some use cases for disk replacement.

Replacing failed disks in an ESS recovery group: a sample scenario for ESS 3000
This scenario shows how to detect and replace failed disks in a recovery group that is built on an ESS 3000 building block.
Replacing failed disks in an ESS recovery group: a sample scenario for ESS 5000
The scenario presented here shows how to detect and replace failed disks in a recovery group built on an ESS building block.
Using the mmvdisk command to fix issues caused by improper disk removal for ESS
Pdisks are identified by the descriptors that are written onto the disks, not by their physical locations. If a pdisk is moved to a different enclosure slot, the system still correctly identifies the pdisk and continues to use it. In general, the system cannot prevent an operator from swapping disks between slots. Continuing to use a disk that is found in an unexpected location avoids risk of data unavailability.
Replacing failed ESS storage enclosure components: a sample scenario for ESS 5000
The scenario presented here shows how to detect and replace failed storage enclosure components in an ESS building block.
Replacing a failed ESS storage enclosure for ESS 5000
Enclosure replacement should be rare. This procedure assumes that the enclosure chassis is replaced, and the serial number of the replaced enclosure is moved to the replaced chassis. Contact IBM® Service if the enclosure replacement changes the serial number of the enclosure.

Parent topic: Disk replacement for IBM Storage Scale System