FAS and V-Series Storage Systems Discussions
The FAS2240-4 comes with four power supplies. If three of them fail for some reason, can the system run on just the one remaining power supply?
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No. It needs at least two PSU providing power. It also needs all four PSU fans; physically removing PSU will cause shutdown after 2 minutes.
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they require a minimum of one per controller/per shelf. Anything less and they will shut down