FAS and V-Series Storage Systems Discussions

FAS Power Load Balancing Question

Hi:

 

I'm sorry if this has been asked before, but I can't find a thread on it.  

 

On HWU, for FAS and DS Shelves, when it shows power draw (amperage), that is for one power supply, correct?  If I have redundant power, I should expect that load to be balanced across the 2 PDUs?  The headings on the numbers and the "How are these measurements made?" don't exactly match, so I'm just trying to verify.

 

So for example, a DS2246 shelf with 12 x 900GB 10K SAS drives has a typical 1.6Amps at 110 Power.  In a normal redundant power configuration, that 1.6 is being distributed evenly across the two power supplies, correct? (assuming the power circuits provide the same load).  So ROUGHLY 0.8 amps per PDU?

 

 

 

1 REPLY 1

Re: FAS Power Load Balancing Question

Correct - stated load is split between all power supplies in a system. When one PSU has failed or is disconnected, the load on the remaining one will be doubled (or more - check the worst case values to predict)

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