Logical-drive migration is a powerful and flexible feature of ServeRAID controllers. You can use logical-drive migration to:
You can migrate a logical drive while the server is running with only minor performance degradation for users during the process. You can start the migration immediately or schedule it for a later date and time.
HostRAID controllers do not support logical drive migration.
Notes: To perform a logical-drive migration, the following must be true:
During logical-drive migration, the ServeRAID Manager creates one logical
drive for temporary use. (You must have an extra logical drive onto which
the data can migrate.) The ServeRAID Manager sets this logical drive to
the system state. When migration is complete, this logical drive is removed.
If a physical drive fails during a logical-drive migration and you are migrating between RAID levels other than RAID level-0, the migration will continue and complete. Then, you must replace and rebuild the failed physical drive.
Logical-drive migrations also can recover from a power failure. If power is lost to the server during a logical-drive migration, the migration will restart as soon as power is restored, and complete without data corruption.
Note: (Cluster and failover configurations only) A logical drive will not failover while undergoing logical-drive migration.