Symantec Shelf NetBackup 5220, Safety Manual, Page: 45 / 64

45
Fan failure
If alarms in the monitoring systems indicate fan problems or high temperatures at the
air intake vent, make sure room air cooling is adequate.
Temperature abnormality
Several problems may lead to high (great than 35C) temperatures of the device.
Thoroughly check all aspects of the rack environment.
 Make sure no other equipment is overly warm and close to the devices.
 Make sure room temperature is within specifications.
 Make sure AC power to the device is correct.
When the system alarm/location indicator is on and red, the alarm information is
displayed on the browser-based monitoring interface.
Alarm information
Classification Type Device Description
Overtemperature of
the CPU core Temperature CPU Temperature is not
critical yet but is
approaching the upper
limit of the range.
Overtemperature of
the air intake of the
chassis Temperature Chassis air
intakc Temperature is not
critical yet but is
approaching the upper
limit of the range.
Fan module absence Cooling device Fan Device absent
Investigate other possible problems
1.
Make sure the front and back of the NetBackup 5220 are clear of any
obstructions so that air can flow easily from front to back.
2.
Verify that room temperature is within specifications.
3.
Verify that any equipment near the device is at normal temperature.
If high temperatures or alarms persist, contact technical support.