Specifications

Operation and Management
57MSA1000 Reference Guide
When a drive fails, the online spare becomes active and begins rebuilding as a
replacement drive. After the online spare has completed Automatic Data
Recovery (the Online indicators will be continuously lit), replace the failed
drive with a new replacement drive. Do not replace the failed drive with the
online spare. The system will automatically rebuild the replacement drive and
reset the spare drive to an available state.
■ If you replace a drive while the system is off, it may be necessary to rebuild
the replaced drive.
■ Up to one half of the drives in a RAID 1+0 array can be replaced at the same
time.