•Problem: The least priority servers lost power after a PSU failure.
–Resolution: To avoid a future power supply failure causing servers to power off, make sure that
the chassis has at least three power supplies and is configured for the Power Supply Redundancy
policy to prevent PSU failure from impacting server operation.
•Problem: Overall server performance decreases when the ambient temperature increases in the data
center.
–Resolution: This can occur if the System Input Power Cap has been configured to a value that
results in an increased power need by fans having to be made up by reduction in the power
allocation to the servers. User can increase the System Input Power Cap to a higher value that
allow for additional power allocation to the fans without an impact on server performance.
Troubleshooting Alerts
Use the CMC log and the trace log to troubleshoot CMC alerts. The success or failure of each email
and/or SNMP trap delivery attempt is logged into the CMC log. Additional information describing the
particular error is logged in the trace log. However, since SNMP does not confirm delivery of traps, use a
network analyzer or a tool such as Microsoft’s snmputil to trace the packets on the managed system.
Viewing Event Logs
You can view hardware- and chassis logs for information on system-critical events that occur on the
managed system.

Viewing Hardware Log

CMC generates a hardware log of events that occur on the chassis. You can view the hardware log using
the web interface and remote RACADM.
NOTE: To clear the hardware log, you must have Clear Logs Administrator privilege.
NOTE: You can configure CMC to send email or SNMP traps when specific events occur. For
information on configuring CMC to send alerts, see Configuring CMC To Send Alerts.
Examples of hardware log entries
critical System Software event: redundancy lost
Wed May 09 15:26:28 2007 normal System Software
event: log cleared was asserted
Wed May 09 16:06:00 2007 warning System Software
event: predictive failure was asserted
Wed May 09 15:26:31 2007 critical System Software
event: log full was asserted
Wed May 09 15:47:23 2007 unknown System Software
event: unknown event

Viewing Hardware Logs Using CMC Web Interface

You can view, save, and clear the hardware log. You can sort the log entries based on Severity, Date/
Time, or Description by clicking the column heading. Subsequent clicks on the column headings reverse
the sort.
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