FAS Power Load Balancing Question
2018-03-28 07:42 PM
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
2018-03-28 11:06 PM
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)