HP DL580 G5 and redundant PSUs

[MP James]

Hi, recently our hosting provider scheduled a power maintence to replace one of their UPSs. Our DL580 G5 has 4 redundant power supplies. Two were plugged into the A circuit and two were in the B circuit.

When the B side was shut down, the server went down too. I expected the server to stay up. What caused it to go down? If we lost a single power supply, I would expect the server to stay up. Can someone explain it to the newbie?

Thanks,

Mike

[Suman_1978 · Accepted solution]

Hi,

Power supply configuration depends on the number of processors installed in the DL580 G5.

Refer to this QuickSpecs and check DL580 G5 system power redundancy behavior, page# 50, 51.

Refer to Best Practices for Power Supply Configuration in the ProLiant DL580 G5 Server.

Thank You!
I am a HP employee
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[MP James]

thanks for the references. that was extremely helpful.