Hi all,
I'm at a customer site and the standard cabling according to A 210-05224+A0 was used to cable the system, when it was set up.
I see a SPOF there:
It's a 3220A-Pair. 4 SAS shelves in 2 stacks.
Stack A is connected to 0a (both controllers, one in the A-'loop', the partner in the B-'loop'
and to 3b (extra-Quad-SAS card, last shelf, one in B-'loop', partner in A-'loop')
Stack B is connected to 3a and 3d (same principle as before)
==> If there's a problem with the card in slot 3 of controller 2, his B-stack completely looses connectivity, the partner (A) has to take over.
Why not connect the B-Stack with 0b ?
Then there would not be a SPOF...
I do not see any advantages following the cabling in this cabling guide (regarding this detail).
Does anyone see a reason for this?
Can we just re-cable 3a -> 0b ?
TIA
Sebastian#