User's Manual

316 Power Management
Table 9-16. Configurable Power Budget/Redundancy Properties
Item Description
System Input Power
Cap
System Input Power Cap is the maximum AC power that the
system is allowed to allocate to servers and chassis
infrastructure. It can be configured by the user to any value
that exceeds the minimum power needed for servers that are
powered on and the chassis infrastructure; configuring a value
that falls below the minimum power needed for servers and
the chassis infrastructure will fail.
The power allocated to Servers and Chassis Infrastructure can
be found in the User Interface on the Chassis Overview
Power  Power Budget status page under Power Budgeting
section or by using the CLI RACADM utility command
(
racadm getpbinfo).
Users can power off one or more server(s) to lower the current
power allocation, and re-attempt setting a lower value for
System Input Power Cap (if desired) or simply configure the
cap prior to powering on the servers.
To change this setting, it is possible to enter a value in any of
the units. The interface ensures that the unit field that was
last changed will be the value that is submitted when those
changes are applied.
NOTE: See the Datacenter Capacity Planner (DCCP) tool at
www.dell.com/calc for capacity planning.
NOTE: When value changes are specified in watts, the
submitted value will exactly reflect what is actually applied.
However, when the changes are submitted in either of the
BTU/h or percent units, the submitted value may not exactly
reflect what is actually applied. This is because these units are
converted to watts and then applied; and the conversion will be
susceptible to some rounding error.