Owner's Manual

192 Power Management
System AC Power
Warning Threshold
Indicates the maximum amount of power (in watts) beyond
which the CMC takes action to reduce power consumption.
If Server Power Throttling Enabled is checked and the
chassis power consumption exceeds the power warning
threshold, then the power to lower priority servers is reduced
until the total power consumption falls below the threshold.
If Server Power Throttling Enabled is not checked, servers
with lower priority may be powered off until the total power
consumption falls below the threshold.
Server Power
Throttling Enabled
When checked, enables the CMC power conservation mode.
The CMC is allowed to siphon power from lower priority
servers when power is needed for the entire chassis. Servers
continue operating at a reduced performance level rather
than being shut down.
Redundancy Policy Specifies a redundancy configuration: No Redundancy, Power
Supply Redundancy, or AC Redundancy.
Default: No Redundancy.
NOTE: The No Redundancy mode uses only three PSUs at a
time. If 3 PSUs are installed, then no backup is available. Failure
of one of the three PSUs in use could cause the servers to lose
power or data. If PSUs 4 through 6 are present, then they
become redundant and are made available if an online PSU
fails.
Enable Dynamic
Power Supply
Engagement
Indicates whether Dynamic Power Supply Engagement is
enabled or disabled. Enabling this feature allows the CMC to
put under-utilized power supplies into standby mode based
on the redundancy policy that is set and the power
requirements of the system. Putting under-utilized power
supplies into standby mode increases the utilization of active
power supplies and thus the efficiency of the online supplies,
saving power.
Disable Chassis
Power Button
Disables (when checked) the chassis power button. If the
checkbox is checked and the user attempts to change the
power state of the chassis though the chassis power button,
the action is ignored.
Table 7-12. Configurable Power Budget/Redundancy Properties (continued)
Item Description