Originally Posted by Boss Hoss
did you ever resolve the specific HDD as failing?
so power outages with RAID5/ReiserFS cause corruptions, as well with clean shutdowns?
I don't know if you're asking the original poster or a generl question, but, in general, nothing should harm a RAID5 other than a failing drive... even at that, if you have a proper rebuild procedure, that should cause little to no ill effects.
my power outage problem stemmed from a crummy RAID card (made by Promise - most are crap) that would not detect all hard drives every time it booted & wouldn't notify you until the logwatch came through... It instead loaded into some odd mode that would allow you to read/write, but any directory that you wrote to would then be corrupted once the RAID was brought back up in full... so if you write one file to the root of the RAID5 array, all data is lost.
Reiser does have some fairly decent recovery tools & I was able to get most of my data back. I've since moved to 3ware cards (I'm running 3 of them in 2 machines) and have not had a single problem since. I'm running one huge RAID5 and two RAID0s that are, themselves, striped together... The 3ware cards now have battery backup units that hold the memory in the event of a power failure to prevent corrupt. Even so, I run both machines through a UPS.