User`s guide

Using Test Mode
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Thermal Alarm
The four types of thermal alarms and the associated corrective actions are described in
Table 5-8.
Using Test Mode
When no faults are present in the storage system, you can run test mode to check the
LEDs and the audible alarm on the ESI/ops panel. In this mode, the amber and green
LEDs on each of the drive carrier modules and the ESI/ops panel flash on and off in
sequence; the alarm beeps twice when test mode is entered and exited.
To activate test mode, press the alarm mute button until you hear a double beep. The
LEDs then flash until the storage system is reset, either when you press the alarm mute
button again or if an actual fault occurs.
Table 5-8 Thermal Alarms
Alarm Type Indicators Solutions
High temp warning
begins at 54°C (129°F)
Audible alarm sounds
Ops panel system fault LED flashes
Fans run at higher speed than normal
SES temperature status is non-critical
PSU Fault led is lit
If possible, power down the enclosure;
then check the following:
• Ensure that the local ambient
temperature meets the specifications
outlined in “Environmental
Requirements” on page 105
• Ensure that the proper clearances are
provided at the front and rear of the
rack.
• Ensure that the airflow through the
rack is not obstructed.
If you are unable to determine the cause
of the alarm, please contact your service
provider.
High temp failure
begins at 58°C (136°F)
Audible alarm sounds
Ops panel system fault LED flashes
Fans run at higher speed than normal
SES temperature status is critical
PSU Fault led is lit
Low temp warning
begins at 10°C (50°F)
Audible alarm sounds
Ops panel system fault is lit
SES temperature status is non-critical
Low temp failure
begins at 0°C (32° F)
Audible alarm sounds
Ops panel system fault is lit
SES temperature status is critical