Users Guide

PSU Configuration Dynamic PSU
Engagement
Firmware Response
No Redundancy Disabled Decrease power to low priority servers, if needed.
AC Redundancy Enabled CMC alerts you of loss of AC Redundancy. PSUs in standby mode
(if any) are turned on to compensate for power budget lost from
the PSU failure or removal.
Power Supply
Redundancy
Enabled CMC alerts you of loss of Power Supply Redundancy. PSUs in
standby mode (if any) are turned on to compensate for power
budget lost from PSU failure or removal.
No Redundancy Enabled Decrease power to low priority servers, if needed.
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 37. SEL Events for Power Supply Changes
Power Supply Event System Event Log (SEL) Entry
Insertion Power supply presence was asserted
Removal Power supply presence was de-asserted
AC input received Power supply input lost was de-asserted
AC input lost Power supply input lost was asserted
DC output produced Power supply failure was de-asserted
DC output lost Power supply failure was asserted
Unacknowledged 110V operation
detected
Power supply low input voltage (110) was asserted
110V operation acknowledged Power supply low input voltage (110) was de-asserted
Events related to changes in the power redundancy status that record entries in the SEL are redundancy loss and
redundancy regain for the modular enclosure that is configured for either an AC Redundancy power policy or Power
Supply Redundancy power policy. The following table lists the SEL entries that are related to power redundancy policy
changes.
Power Policy Event
System Event Log (SEL) Entry
Redundancy lost Redundancy lost was asserted
Redundancy regained Redundancy lost was de-asserted
Configuring Power Budget and Redundancy
You can configure the power budget, redundancy, and dynamic power of the entire chassis (chassis, servers, I/O
modules, iKVM, CMC, and power supplies), which uses six power supply units (PSUs). The power management service
optimizes power consumption and re-allocates power to different modules based on the requirement.
191