HP Integrity rx4640 Server - Manual (Page 23)

Replacing, moving, or adding hard drives 23
Activity
LED (1) Online LED
(2) Fault LED
(3) Interpretation
On or
flashing Flashing Off Do not remove the drive. Removing a drive may
terminate the current operation and cause data loss.
The drive is rebuilding or undergoing capacity expansion.
On Off Off Do not remove the drive.
The drive is being accessed, but (1) it is not configured as part of an
array; (2) it is a replacement drive and rebuild has not yet started; or
(3) it is spinning up during the POST sequence.
Flashing Flashing Flashing Do not remove the drive. Removing a drive may cause
data loss in non-fault-tolerant configurations.
Either (1) the drive is part of an array being selected by an array
configuration utility; (2) Drive Identification has been selected in
HP SIM; or (3) drive firmware is being updated.
Off Off On The drive has failed and has been placed offline.
You may replace the drive.
Off Off Off Either (1) the drive is not configured as part of an array; (2) the drive
is configured as part of an array, but it is a replacement drive that is
not being accessed or being rebuilt yet; or (3) the drive is configured
as an online spare.
If the drive is connected to an array controller, you may replace the
drive online.
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.
Effects of a hard drive failure
When a hard drive fails, all logical drives that are in the same array are affected. Each logical drive in
an array may be using a different fault-tolerance method, so each logical drive can be affected
differently.