Cisco Bug: CSCul21009 - MK1.C: Cetus: Change power redundancy model to N+1 for all combo of PSU
Mar 06, 2018
- Cisco Catalyst 6000 Series Switches
Known Affected Releases
Symptom: If anything less than 4 PSU, the 'show power' CLI and Syslogs state the system is "non-redundant". In the redundant (3+1) mode, the CLI output of "show power" currently displays the following: system power redundancy mode = redundant When 4 PSU (3+1 redundant) transitions to 3 PSU (3+0 combined), the following syslog messages will be printed: *Oct 29 17:44:22.788: %C6KPWR-SW2-4-PSOUTPUTDROP: Power supply 4 output has dropped *Oct 29 17:44:22.804: %C6KPWR-SW2-4-MULTIPSNOREDUNDANCY: System is running with 3 power supplies, no fully redundancy is supported The same message is displayed when 3 PSU (3+0) transitions to 2 PSU (2+0). When 2 PSU transitions to 1 PSU, the following syslog messages will be printed. *Oct 29 17:45:10.464: %C6KPWR-SW2-2-PSFAIL: power supply 2 output failed. *Oct 29 17:45:10.476: %C6KPWR-SW2-4-PSREDUNDANTONESUPPLY: in power-redundancy mode, system is operating on one power supply. In the psuedo-combined (3+0, 2+0 or 1+0) mode, the CLI output of "show power" currently displays the following: system power redundancy mode = redundant system power redundancy operationally = non-redundant Conditions: The current Cetus (C6807-XL) power redundancy operational model is 3+1 only (4 PSU online), and all other modes are pseudo-combined mode N+0 (3+0, 2+0 or 1+0). Also, there are only 2 config modes: redundant & combined. In other words... when "redundant" mode is configured, the system is only considered "redundant" in 3+1 (4 PSU).
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