Describes the configuration of two power supplies for redundancy and the verification of their operational status. This setup ensures continuous system operation during a power supply failure.
This reference provides the commands and expected output to enable dual power supply mode and monitor power redundancy status on the switch.
Configuration commands
This example demonstrates how to configure two power supplies:
Switch# enable
Switch# configure terminal
Switch(config)# power-supply dualVerification commands
These examples show how to display information when two power supplies are absent, resulting in an alarm that is triggered.
The show facility-alarm status command displays information when two power supplies are absent, resulting in a triggered alarm
Switch# show facility-alarm status
Source Severity Description Relay Time
Switch MAJOR 5 Redundant Pwr missing or failed NONE Mar 01
1993 00:23:52Switch# show env power
POWER SUPPLY A is DC OK
POWER SUPPLY B is DC FAULTY <--Switch# show hard led
SWITCH: 1
SYSTEM: GREEN
ALARM : ALT_RED_BLACK <--