Notes On Replacing Hard Disk Drives In The Raid System - NEC Express5800/R120b-2 User Manual

Notes on Replacing Hard Disk Drives in the RAID System

When the hard disk drives are in the RAID System, you can restore the state before an error using
the auto-rebuild feature that stores the data in the old hard disk drive into a new one.
The auto-rebuild feature is available for the RAID1, RAID5, RAID6, RAID10, or RAID50.
Auto-rebuild is carried out when you hot-swap a failed hard disk drive with a new one (replace the
disk while the server is powered). While auto-rebuild is in progress, the DISK LED flashes green
and amber alternatively to indicate it.
Observe the following notes for auto-rebuild.
Do not power off the server in the period between a hard disk drive error and completion of
auto-rebuild.
When you removed a hard disk drive, wait at least 90 seconds before installing the hard
disk drive back again.
Do not replace another hard disk drive while rebuilding is in progress. (The DISK LED
flashes in green and amber alternatively while rebuilding the hard disk drive.)
Upgrading Your Server 9-19