Drive Enclosure Troubleshooting

Table 8–5

Display Panel LEDs

 

 

 

 

 

 

 

 

 

 

 

ICON

 

LABEL

COLOR

Definition

Normal Behavior

 

 

 

 

 

 

 

 

 

 

Cover Open

AMBER

Enclosure cover

OFF-both cover pieces securely

 

 

 

 

 

is open

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

 

 

 

 

 

 

 

 

8.4 Audible Alarm

When the Audible Alarm sounds, use the appropriate SES CLI command.

8.4.1Top Cover Open

The Audible Alarm sounds anytime the top cover is open. The alarm mutes automatically once the cover is closed.

8.4.2SES 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.

8.5Troubleshooting

The following sections describe common problems (and possible solutions) you might encounter with your drive enclosure system.

8.5.1Thermal 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.

007-5510-002

121

Page 135
Image 135
APC 15000 RAID manual Audible Alarm, Troubleshooting, Top Cover Open, SES Command, Thermal Control