HP StorageWorks 2500 Disk System - Manual (Page 60)

1. Mounting hole 3. Mounting tabs (4)
2. Guide post 4. Blower base
Figure 33 Replacing a blower
Replacing a disk drive
Before you begin
Always use proper antistatic protection as described in the documentation that shipped with your system.
Do not remove more than one disk drive or drive blank from an operating DS2500. Doing so impacts
air flow of the enclosure, and may cause data loss.
HP recommends installing a disk of equal or greater capacity, or a drive blank, as soon as possible.
Prevent possible data loss by verifying that the disk to be removed is in a failed state.
IMPORTANT:
When the system boots, HP-UX retrieves the loop ID and WWN of each disk and stores the information
for disk authentication. When you replace a disk drive, the authentication fails because the WWN has
changed. You must use fcmsutil to instruct the FC driver to ignore the authentication.
Removing a disk drive
Record the loop ID of the disk drive to be replaced. Use Table 12 to determine the loop ID based on the
enclosure ID and the bay in which the disk drive resides.
60 Customer self repair