Audible alarm – Dell PowerVault 221S (SCSI) User Manual
Page 9
Introduction: Dell PowerVault 220S and 221S Systems Installation and Troubleshooting Guide
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Module
Icon
LED Indicator
LED
Icon
Function
Power supply
Power on (green)
DC output voltages are within specifications.
Fault (amber)
One of the DC output voltages is not within specifications.
AC status (green)
AC input voltage is within specifications regardless of the position of the
power switch.
Cooling
module
Blower A fault
(amber)
Cooling module blower A has failed.
Blower B fault
(amber)
Cooling module blower B has failed.
NOTE:
For the full name of an abbreviation or acronym used in this table, see "
Audible Alarm
The primary EMM activates an audible alarm if any of the shelf-fault conditions listed in
occurs, the alarm sounds continuously. If a noncritical event occurs, the alarm sounds every 10 seconds.
critical and noncritical events.
NOTE:
The audible alarm is disabled by default. To enable the alarm, you must change the default setting using your
array management software. For more information, see your array management software documentation.
NOTE:
When the system is on and a split-bus module is not detected, the audible alarm will sound regardless of
whether it is enabled or disabled.
Table 1-8. Audible Alarm Critical and Noncritical Events
Critical Events
Noncritical Events
Two or more cooling-module blowers have failed or a cooling module is
not installed.
One power supply has failed.
One or more temperature sensors are in critical range (in excess of 50°C
[122°F] inside the box).
One cooling-module blower has failed.
The split-bus module is not installed.
One or more temperature sensors are in
the warning range.
One EMM has failed
NOTE:
For the full name of an abbreviation or acronym used in this table, see "
NOTE:
It is rare for both EMMs to fail simultaneously. However, if this event occurs, the system cannot issue critical or
noncritical event alarms for any system component. If both power supplies fail simultaneously, the system can issue
critical or noncritical event alarms only if 5-V power is available.