HP Smart Array (RAID) Host Bus Adapters manual Recognizing hard drive failure

Online/activity LED	Fault/UID LED	Interpretation
(green)	(amber/blue)
Flashing regularly	Amber, flashing	Do not remove the drive. Removing a drive may
(1 Hz)	regularly (1 Hz)	terminate the current operation and cause data loss.
		The drive is part of an array that is undergoing capacity
		expansion or stripe migration, but a predictive failure alert has
		been received for this drive. To minimize the risk of data loss, do
		not replace the drive until the expansion or migration is
		complete.
Flashing regularly	Off	Do not remove the drive. Removing a drive may
(1 Hz)		terminate the current operation and cause data loss.
		The drive is rebuilding, or it is part of an array that is undergoing
		capacity expansion or stripe migration.
Flashing irregularly	Amber, flashing	The drive is active, but a predictive failure alert has been
	regularly (1 Hz)	received for this drive. Replace the drive as soon as possible.
Flashing irregularly	Off	The drive is active, and it is operating normally.
Off	Steadily amber	A critical fault condition has been identified for this drive, and
		the controller has placed it offline. Replace the drive as soon as
		possible.
Off	Amber, flashing	A predictive failure alert has been received for this drive.
	regularly (1 Hz)	Replace the drive as soon as possible.
Off	Off	The drive is offline, a spare, or not configured as part of an
		array.

Recognizing hard drive failure

A steadily glowing Fault LED indicates that that drive has failed. Other means by which hard drive failure is revealed are:

•The amber LED on the front of a storage system illuminates if failed drives are inside. (However, this LED also illuminates when other problems occur, such as when a fan fails, a redundant power supply fails, or the system overheats.)

•A POST message lists failed drives whenever the system is restarted, as long as the controller detects at least one functional drive.

•ACU represents failed drives with a distinctive icon.

•Systems Insight Manager can detect failed drives remotely across a network. (For more information about Systems Insight Manager, refer to the documentation on the Management CD.)

•ADU lists all failed drives.

For additional information about diagnosing hard drive problems, refer to the HP Servers Troubleshooting Guide.

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.

Replacing, moving, or adding hard drives 27