User guide

Enclosure User Guide
52
4.2.6 Drive Carrier LEDs
Please refer to Table 4–6 on page 52.
4.3 Audible Alarm
The enclosure subsystem includes an Audible Alarm which indicates when a fault state is present. The
following conditions will activate the Audible Alarm:
• Fan Fault
• Voltage out of range
• Over temperature
• Thermal overrun
• System fault
• Logical fault
• PSU Fault
• Removal of 1 PSU
• Invalid cabling
4.3.1 Audible Alarm Mute
When the Audible Alarm sounds, it may be muted by pressing the Alarm Mute push-button, located on
the enclosure front panel. Automatic muting will take place after two minutes if the mute switch is not
manually operated.
When the alarm is muted it will continue to sound with short intermittent beeps to indicate that a problem
still exists, It will be silenced when all problems are cleared. (See also Section
4.5.5 on page 55).
4.3.1.1 LED Test Mode
The Alarm Mute push-button can also be used to activate the self- test feature for the LEDs on the Ops
Panel. The test is activated when you press the Mute push-button while no faults are present. While the
test is running all LEDs will flash.
4.4 Drive Carrier Module Faults
Disk drive status is monitored by a green LED and an amber LED mounted on the front of each Drive
Carrier module (see
Figure 4–2), providing the following indications:
Table 4–6 Drive Carrier LED Functions
State Green Amber
No drive fitted Off Off
Drive Power ON On Off
Drive Activity On/Blink off Off
Drive Impacted On Blink