HP 5300 - Manual (Page 123)

Hard Drive Installation and Replacement
E-6 HP Smart Array 5300 Controller User Guide
HP CONFIDENTIAL
Writer: Jennifer Hayward File Name: o-appe hard drive installation and replacement
Codename: SilverHammer Part Number: 135606-005 Last Saved On: 10/8/02 11:22 AM
• The amount of I/O activity occurring during the rebuild operation
• The disk drive speed
• The number of drives in the array (for RAID 5 and RAID ADG)
For example, the rebuild time when using 9-GB Wide-Ultra hard drives in a RAID 5
configuration varies from ten minutes per gigabyte (for three drives) to 20 minutes
per gigabyte (for 14 drives).
Failure of Automatic Data Recovery
If the Online LED of the replacement drive stops blinking during automatic data
recovery, there are three possible causes:
• If the Online LED is glowing continuously, automatic data recovery was
successful and has finished.
• If the amber failure LED is illuminated or other LEDs go out, the replacement
drive has failed and is producing unrecoverable disk errors.
Remove and replace the failed replacement drive.
• If the automatic data recovery process has abnormally terminated, one possible
cause is a non-correctable read error on another physical drive. The system may
temporarily become operational if rebooted. In any case, locate the faulty drive,
replace it, and restore data from backup.
General Aspects of Drive Replacement
Before replacing a degraded drive, use Insight Manager to examine the error counters
recorded for each physical drive in the array to confirm that such errors are not
presently occurring. Refer to the Insight Manager documentation on the Management
CD for details.
CAUTION: Sometimes, a drive that has previously been failed by the controller may
seem to be operational after the system is power-cycled, or (for a hot-pluggable
drive) after the drive has been removed and reinserted. However, continued use of
such marginal drives may eventually result in data loss. Replace the marginal drive
as soon as possible.