HP Integrity rx4640 Server - Manual (Page 91)

Hard Drive Installation and Replacement
In general, approximately 15 minutes is required to rebuild each gigabyte. The actual
rebuild time depends upon:
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The level of rebuild priority that has been set for the logical drive. For details,
refer to Chapter 6, “Configuring an Array.”
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.
E-6 HP Smart Array 5300 Controller User Guide
HP CONFIDENTIAL
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