APC SGI 15000 RAID - Manual (Page 135)

Drive Enclosure Troubleshooting
007-5510-002 121
8.4 Audible Alarm
When the Audible Alarm sounds, use the appropriate SES CLI command.
8.4.1 Top Cover Open
The Audible Alarm sounds anytime the top cover is open. The alarm mutes automatically once the cover
is closed.
8.4.2 SES Command
The Audible Alarm can be set through SES communication. When set in this manner, the alarm remains
on until any one of the following conditions is met:
• Enclosure is power cycled.
• Alarm is turned off through SES command.
8.5 Troubleshooting
The following sections describe common problems (and possible solutions) you might encounter with
your drive enclosure system.
8.5.1 Thermal Control
The drive enclosure uses extensive thermal monitoring and takes a number of actions to ensure
component temperatures are kept low and also to minimize acoustic noise. Air flow is from the front,
over the drive section, through the midplane, through the I/O modules to rear of the enclosure.
Cover Open AMBER Enclosure cover
is open OFF-both cover pieces securely
closed and latched in place.
ON-either of the cover pieces is
NOT securely closed and
latched in place
DEM Fault AMBER DEM fault OFF-all DEMs operating
correctly.
ON-at least one DEM has failed;
service action required
Drive Fault AMBER Drive fault ON-one or more HDDs are
faulted. SES must determine
exact HDD.
OFF-no detectable drive faults
Table 8–5 Display Panel LEDs
ICON LABEL COLOR Definition Normal Behavior