HP Array Controller HSG V8.7 Software - Manual (Page 243)

Replacement Procedures 5–47
Replacing a Failed Storageset Member
If a disk drive fails in a RAIDset or mirrorset, the controller
automatically places it into the failedset. If the spareset contains a
replacement drive that satisfies the storageset’s replacement policy, the
controller automatically replaces the failed member with the
replacement drive. If the spareset is empty or doesn’t contain a
satisfactory drive, the controller simply “reduces” the storageset so that
it can operate without one of its members.
The storageset remains in this reduced state until the spareset contains a
satisfactory drive. When the controller senses a satisfactory drive in the
spareset, it automatically places the drive into the storageset and
restores the storageset to normal. Therefore, replacing a failed
storageset member means putting a satisfactory drive into the spareset.
Removing a Failed RAIDset or Mirrorset Member
Use the following steps to remove a failed RAIDset or mirrorset
member:
1. Connect a PC or terminal to the maintenance port of the controller that
accesses the reduced RAIDset or mirrorset.
2. Enable AUTOSPARE with the following command:
SET FAILEDSET AUTOSPARE
With AUTOSPARE enabled, any new disk drive that you insert into the
PTL location of a failed disk drive is automatically initialized and
placed into the spareset.
3. Remove the failed disk drive.
Installing the New Member
Use the following steps to install a new member:
1. Insert a new disk drive that satisfies the replacement policy of the
reduced storageset into the PTL location of the failed disk drive.
Note The controller automatically initializes the new disk drive and
places it into the spareset. As soon as it becomes a member of the
spareset, the controller automatically uses the new disk drive to restore
the reduced RAIDset or mirrorset. If initialization fails, the new disk
drive is placed into the failedset.