HP StorageWorks 500 G2 Modular Smart Array - Manual (Page 83)

Troubleshooting 83
• The rotational speed of the hard drives
• The availability of drive cache
• The brand, model, and age of the drives
• The amount of unused capacity on the drives
• The number of drives in the array (for RAID 5 and RAID ADG)
Allow approximately 15 minutes per gigabyte for the rebuild process to be
completed. This figure is conservative, and newer drive models usually require
less time to rebuild.
System performance is affected during the rebuild, and the system is unprotected
against further drive failure until the rebuild has finished. Therefore, replace
drives during periods of low activity when possible.
CAUTION: If the Online LED of the replacement drive stops
blinking and the amber Fault LED glows, or if other drive LEDs in the
array go out, the replacement drive has failed and is producing
unrecoverable disk errors. Remove and replace the failed replacement
drive.
When automatic data recovery has finished, the Online LED of the replacement
drive stops blinking and begins to glow steadily.
Failure of another drive during rebuild
If a non-correctable read error occurs on another physical drive in the array
during the rebuild process, the Online LED of the replacement drive stops
blinking and the rebuild abnormally terminates.
If this situation occurs, reboot the server. The system may temporarily become
operational long enough to allow recovery of unsaved data. In any case, locate
the faulty drive, replace it, and restore data from backup.