HP Compaq Integrated Smart Array Controller - Manual (Page 127)

Understanding Drive Arrays B-21
Compaq Confidential – Need to Know Required
Writer: CDresden Project: Compaq Integrated Smart Array Controller User Guide Comments:
Part Number: 153236-001 File Name: i-appb Understanding Drive Arrays.doc Last Saved On: 8/27/99 11:35 AM
Recognizing a Drive Failure
A drive failure can be recognized by the system operator in one of several
ways:
■ Amber LED will be illuminated on failed drives in a hot-plug tray. This,
however, assumes the storage system is powered on and the SCSI cable
is working. Note that the amber LED may be illuminated briefly when a
hot-plug drive is inserted; this is normal.
■ Amber LED on the front of a ProLiant Storage System will be
illuminated if failed drives are inside (other problems such as fan failure
or over-temperature conditions will also cause this LED to be
illuminated).
■ A Power-On Self-Test (POST) message will list failed drives whenever
the system is restarted (assumes that one or more “good” drives are
detected by the controller).
■ Array Diagnostics Utility (ADU) will list all failed drives. An online
version on ADU is also available in Windows NT environments.
■ Compaq Insight Manager can be used to detect failed drives remotely
across a network.
Problems such as reduced system performance or disk errors reported by the
operating system do not necessarily imply that a drive has or has not been
failed. If you suspect drive failures or encounter repeated errors, Compaq
recommends that you run Drive Array Advanced Diagnostics on the system.