Los power on Redundant Power Supply

[cokho]

I have a stack of two C9300-48P. If one of the redundant power supply loses power, will the switch continue to function at full capacity?

[Leo Laohoo]

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@cokho wrote:

I have a stack of two C9300-48P. If one of the redundant power supply loses power, will the switch continue to function at full capacity?

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Depends on the size of each of the PS.  

The "minimum" requirement for each switch is about 375wac.  When I say minimum, I mean ONLY the switch and PoE is not even in consideration.  

[sphillips]

Yes as long as both power supplies are good and working properly.

[Reza Sharifi]

The default power supply for that switch is 715WAC. So, as long as the second power supply is also 715WAC, you should be fine.

See table-3 in this link:

https://www.cisco.com/c/en/us/products/collateral/switches/catalyst-9300-series-switches/nb-06-cat9300-ser-data-sheet-cte-en.html

HTH

[cokho]

Thanks for everyone's input. Both ps on the switch are 715W so I should be safe to have one of them down. 

[Reza Sharifi · Accepted solution]

Since both PSUs are 715WAC, you should have no issues when one of them fails.

HTH