Dell POWERVAULT MD1000 - Manual (Page 18)

18 About Your System
Enclosure Alarms
An audible alarm is activated if any of the fault conditions listed in Table 1-6 occur. If a critical event
occurs, the alarm sounds continuously. If a noncritical event occurs, the alarm sounds every 10 seconds.
NOTE: The audible alarm is disabled by default. To enable the alarm, you must change the default setting in Server
Administrator. For more information, see Server Administrator Storage Management Service documentation.
NOTE: It is rare for both EMMs to fail simultaneously. However, if this occurs, the enclosure cannot issue critical
or noncritical event alarms for any enclosure component.
Table 1-5. Power Supply/Cooling Fan Module LED Indicators
LED type LED color LED Icon Function
DC power Green On: DC output voltages are within
specifications.
Off: No power, or voltages not within
specifications.
Power
supply/cooling fan
fault
Amber On: DC output voltages are not within
specifications or one (or both) fans are
in fault.
Off: No fault condition is present.
AC power Green On: AC input voltage is within
specifications.
Off: No power, or voltages not within
specifications.
Table 1-6. Critical and Noncritical Events
Critical Events Noncritical Events
Two or more fan blowers have failed or a power
supply/cooling fan module is not installed.
One power supply has failed.
One or more temperature sensors are in critical range. One cooling fan has failed.
One or more temperature sensors are in warning range.
One EMM has failed.