Technical data

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Compaq HSZ80 Array Controller ACS Version 8.3 Maintenance and Service Guide
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—one that has not been in an
array before—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.