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Which, upper or lower one, is Power Supply 2 in S210?

If power supplies of Isilon are set side by side, I can point out Power Supply 2 based on KB373599 - Identifying power supply units in X-Series nodes.

However, I cannot say which one, upper or lower one, is Power Supply 2 if they are set one above the other. Does anybody know which is Power Supply 2, for example, in S210 node?

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Stdekart
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Re: Which, upper or lower one, is Power Supply 2 in S210?

Uehara Y,

As I understand it, we follow a general rule of thumb of: left to right, top to bottom.

So the top would be Power Supply 1 and Bottom would be Power supply 2.

I was unable to double check on physical hardware, as the people who test on the equipment are currently not available.

However if you have separate power lines connected to the supplies a check could be done as the power supplies are redundant. Just pull the power cord out of one and confirm with the alert. (This is what I was going to do to test)