Hardware manual

Group Administration Group monitoring
15–12
Critical alarms appear on the Critical tab of the Alarms panel. A critical alarm indicates a serious problem that
can cause damage to the array or data loss. Correct the problem that causes a critical alarm immediately.
Note: Critical alarms correspond to ERROR events.
Critical alarms inc
lude:
• Data integrity:
– RAID is not functioning.
– More than one valid RAID set in the array.
– Full lost block table.
• Cache:
– Control module cache has lost data.
– Cache battery is not charging because it exceeds the temperature limit.
– Cache contains data that does not belong to any
of the installed disk drives.
•
Cooling component fault
– Array temperature exceeds upper or lower limit.
– Missing fan tray or cooling module.
– Both fans failed on a fan tray or cooling module.
• Hardware component fault:
– Failed NVRAM coin cell battery.
– Control modules are different models.
– Failed critical hardware component.
– Missing or failed operations panel (n
ot all array
models).
– Failed array monitoring processor (not all array models).
Displaying warning alarms
Open the Alarms and Operations panel and click the Warnings tab to display Warning alarms.
Table 15-8 shows the data fields available in
the Warning tab.
Table 15-8: Alarms and Operations Panel - Warning Tab
Column Description User Actions
Severity Severity of the alarm. Monitoring alarms and operations on page
15-10
Object Object to which the alarm applies. Monitoring alarms and operations on page
15-10
Condition Condition that triggered the alarm. Monitoring alarms and operations on page
15-10
Warning alarms appear on the Warnings tab of the Alarms panel. A warning alarm indicates a condition that
decreases performance or can become critical if you do not correct it.