Users Guide

Power supply and Redundancy policy changes in system event log
Changes in the power supply state and power redundancy policy are recorded as events. Events related to the power supply that
record entries in the system event log (SEL) are power supply insertion and removal, power supply input insertion and removal, and
power supply output assertion and de-assertion.
The following table lists the SEL entries that are related to power supply changes:
Table 27. SEL events for power supply changes
Power Supply Event System Event Log (SEL) Entry
Insertion Power supply is present.
Removal Power supply is absent.
AC input received The power input for power supply has been restored.
AC input lost The power input for power supply is lost.
DC output produced Power supply is operating normally.
DC output lost Power supply failed.
Events related to changes in the power redundancy status that record entries in the SEL are redundancy loss and redundancy regain
for the enclosure that is congured for the Grid Redundancy power policy or Redundancy Alerting Only power policy. The following
table lists the SEL entries that are related to power redundancy policy changes.
Table 28. SEL events for power redundancy policy changes
Power Policy Event System Event Log (SEL) Entry
Redundancy lost Power supply redundancy is lost.
Redundancy regained The power supplies are redundant.
Conguring power budget and redundancy
You can congure the power budget, redundancy, and dynamic power of the entire chassis (chassis, servers, I/O module, CMC,
PCIe, and chassis infrastructure). The power management service optimizes power consumption and reallocates power to dierent
modules based on the requirement.
You can congure the following:
• System Input Power Cap
• Redundancy Policy
• Disable Chassis Power Button
• Max Power Conservation Mode
• Remote Power Logging
• Remote Power Logging Interval
• Disable AC Power Recovery
Power conservation and power budget
If the power usage exceeds the System Input Power Cap, the power supplied to the servers by the PSU is reduced to maintain the
nominal level.
Conguring power budget and Redundancy using CMC web interface
NOTE: To perform power management actions, you must have the Chassis Conguration Administrator privilege.
To congure power budget:
1. In the left pane, click Chassis Overview → Power → Conguration.
2. On the Budget/Redundancy Conguration page, select any or all of the following properties as appropriate. For information
about the eld descriptions, see the Online Help.
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