5940 4slot switch - how many psu's required?

[dogran]

Hi we have a 5940 4-slot currently with 2 650w psu's installed. We also have two 5930 24p SFP+ and 2p QSFP+ Mod JH180A installed.

How can I tell if the power is n+1 ? If one psu failed, would a single psu hold the chassis? Is there a CLI command or snmp mib entry to confirm it is running with n+1 power?

If we were to install another 5930 24p SFP+ and 2p QSFP+ Mod JH180A, would we need additional psu's ?

Thanks.

[parnassus]

With regard to minimum power supplies requiresd...the HPE 5940 4 slots switch model (which has SKU equal to JH398A) the requirement is: 4 power supply slots, 2 minimum power supplies required (to be ordered separately)...on other HPE 5940 switch models the requirement is clearly less heavy: 2 power supply slots, 1 minimum power supply required (to be ordered separately).

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@dogran wrote: How can I tell if the power is n+1 ? If one psu failed, would a single psu hold the chassis?

Power supplies can work in 1+1 redundant mode and support load sharing.

[dogran]

Thanks parnassus,

so a JH398A with two psu's and only two JH180A, will the psu's be working as n+1?

If we add one more JH180A, will we need more psu's to maintain n+1 ?

Are there any documents on power requirements as I cant find any?

Thanks.