5.1.8 Options to Preserve Redundancy while Dropping a Physical Disk

Oracle Exadata System Software release 21.2.0 introduces the MAINTAIN REDUNDANCY and NOWAIT options to the CellCLI ALTER PHYSICALDISK DROP FOR REPLACEMENT command.

The MAINTAIN REDUNDANCY option streamlines Exadata Storage Server administration by automatically rebalancing data before dropping the corresponding ASM disks. In previous releases, maintaining redundancy required additional administrator intervention to manually drop the corresponding ASM disks and rebalance the data prior to using the ALTER PHYSICALDISK DROP FOR REPLACEMENT command.

The NOWAIT option allows the ALTER PHYSICALDISK command to complete immediately while the DROP FOR REPLACEMENT operation runs asynchronously in the background.

Minimum requirements:

• Oracle Exadata System Software release 21.2.0