Owner's Manual

320 Power Management
Figure 9-2. Power Supply Redundancy: Totally 4 PSUs with a failure of one PSU.
No Redundancy Mode
The no redundancy mode is the factory default setting for 3 PSU
configuration and indicates that the chassis does not have any power
redundancy configured. In this configuration, the overall redundancy status
of the chassis always indicates No Redundancy. Figure 9-3 illustrates no
redundancy mode is the factory default setting for 3 PSU configuration.
CMC does not require the PSU units to be present in any specific PSU slot
positions when No Redundancy is configured.
NOTE: All PSUs in the chassis are Online if DPSE is disabled when in No
Redundancy mode. When DPSE is enabled all active PSUs in the chassis are listed
as Online and additional PSUs may be turned to Standby to increase the system's
power efficiency.
Power
Supply
#1
Power
Supply
#2
Power
Supply
#3
Power
Supply
#4
Empty
Slot
#5
Empty
Slot
#6
Chassis DC Power Bus
Dual or Single Power Grid:
Power Supply Redundancy protects against failure
of a single power supply.