28 May
2006
28 May
'06
7:06 p.m.
Don Y wrote:
I have two of these:
http://sunsolve.sun.com/handbook_pub/Systems/SSA_219_7Slot/SSA_219_7Slot.ht…
Each has a pair of PSU's in it. I assume for redundancy.
However, the PSU's in one unit are strappable 110/220VAC
while those in the other unit are 220VAC. <frown>
If the PSU's are just redundant and aren't actively load
sharing, then I *should* be able to swap one 110/220VAC
for a 220VAC and run each array off a single supply
(taking care to hack the sense signal for the second
supply so the array doesn't continually report a supply
failure).
Am I missing anything here? Granted, the two supplies
possibly *do* share the load as a side-effect in normal
operation. But, I assume the intent was for a single PSU
to be capable of powering the entire device in the event of
a failure in the "other" PSU?
Not quite the same array, but we've got a couple of StorEdge A3000 array
controllers on our pair of E6500 boxes and they certainly work as described -
later technology maybe, but it's an indication that your reasoning's correct.
They certainly can run off one supply; one of the dual supplies in one of our
units went into meltdown a while back and everything kept going happily on the
one supply (just the room filled with smoke). No idea why it failed, except
that it was first power-up after a few months being turned off, so possibly a
stress-related thing.
cheers
Jules