resyncing -- The process of preserving identical data on RAID 1 or RAID 5 volumes.
RAID 1 volumes are resynced by copying data from one submirror to another after submirror failures, system crashes, or after adding a new submirror.
RAID 5 volumes are resynced during reboot if any operations that may have been halted from a system panic, a system reboot, or a failure to complete are restarted.