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HP StorageWorks HSG60 and HSG80 Array Controller and Array Controller Software Maintenance and Service Guide (EK-G80MS-SA. C01, March 2005)

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Common Replacement Information and Procedures
84 HP StorageWorks HSG60 and HSG80 Array Controller and Array Controller Software
Maintenance and Service Guide
Removing a failed RAIDset or mirrorset member
Use the following guidelines when replacing disk drives:
■ Never remove more than one disk drive at a time.
If a disk drive is replaced, array controllers use data from the other disk drives
in the array to reconstruct data on the replacement disk drive. If more than one
disk drive is removed, a complete data set is not available to reconstruct data
on the replacement disk drives, and permanent data loss may occur.
■ Never remove a disk drive while another disk drive in the same storage array
is being rebuilt.
Disk drive Online LED Indicators flash green while it is being rebuilt. A
replaced disk drive is rebuilt from data stored on the other disk drives.
■ Never turn a disk enclosure off while the initiator or array controllers are
powered on or active.
Caution: Turning a disk enclosure off while the initiator or array controllers
are powered on or active can cause the initiator or array controller to mark
the disk drives as
failed
. This may result in permanent data loss.
■ If a disk drive is replaced while the system is off, it may be necessary to
rebuild the replaced disk drive.
Follow the instructions on the screen or those outlined in the system reference
guide to remove a failed disk drive. Use the following steps to remove a failed
RAIDset or mirrorset member:
1. Connect a PC or terminal to the array controller maintenance port that
accesses the reduced RAIDset or mirrorset.
2. Enter the following command:
SET FAILEDSET AUTOSPARE
With AUTOSPARE enabled, any new disk or disk drive—one that has not
been in an array before—inserted into the port-target-LUN (PTL) location of
a failed disk drive is automatically initialized and placed into the spareset.
3. Remove the failed disk drive.