User's Manual

Power Management 215
Power Management
Overview
The M1000e chassis ships with either three power supply units (PSUs) or six,
the maximum. If your chassis has three PSUs, you can add up to three more.
The PSUs supply power to the chassis and all the modules in the chassis:
CMC, IOM, iKVM, fans, front panel LCD and servers. The CMC manages
the power budget for all the chassis modules.
For AC redundancy to work in a six-PSU configuration, the three PSUs on the
left must connect to one AC power grid while the three on the right connect
to another. AC Redundancy is not available in a three-PSU configuration.
Each PSU helps the CMC manage the power distribution to the modules.
Power Budgeting for Hardware Modules
The CMC allocates power to the modules in the M1000e chassis dynamically
as they are installed into the chassis.