Backplane replacement

[Tom Brown]

>
> Background: I had two drives of a 5-drive Raid5 show as failed a few days
> ago.  Figuring that the probability of two drives failing together was
> pretty low, especially since the drives were of different ages, I
> suspected the backplane.  Swapping drives between slots showed that the
> failure stayed with the slots and did not move with the drives.
>
>   


are there any updated firmwares for the backplane? i have seen them go 
bad and a firmware flash bring them back into line.

just a thought