If you have two node enclosures with the same type of PSUs I would swap.
I'ld rather have two enclosures with no redundancy than a system that is down.
As for redundancy, the 3PAR has a hardware design with no single point of failure. You had two failures in the same failure domain.
My experience is that PSU doesn't fail often. I don't think I have one system lose a total of 2 PSUs..... during the entire life span.
_________________ The views and opinions expressed are my own and do not necessarily reflect those of my current or previous employers.
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