Re: raid5 failure
On Fri, 21 Jul 2000, Seth Vidal wrote: Hi, We've been using the sw raid 5 support in linux for about 2-3 months now. We've had good luck with it. Until this week. In this one week we've lost two drives on a 3 drive array. Completely eliminating the array. We have good backups, made everynight, so the data is safe. The problem is this: What could have caused these dual drive failures? One went out on saturday the next on the following friday. Complete death. One drive won't detect anywhere anymore and its been RMA'd the other detects and I'm currently mke2fs -c on the drive. Hey Seth, Sorry to hear about your drive failures. To me, this is something that most people ignore about RAID5: Lose more than one drive and everything is toast. Good reason to have a drive setup as a hot spare, not to mention an extra drive laying on the shelf. And hold your breathe while the array is rebuilding. Bill Carlson Systems Programmer[EMAIL PROTECTED]| Opinions are mine, Virtual Hospital http://www.vh.org/| not my employer's. University of Iowa Hospitals and Clinics|
Re: raid5 failure
Hey Seth, Sorry to hear about your drive failures. To me, this is something that most people ignore about RAID5: Lose more than one drive and everything is toast. Good reason to have a drive setup as a hot spare, not to mention an extra drive laying on the shelf. And hold your breathe while the array is rebuilding. it actually will probably be ok in the long run. we had GOOD backups. it took us less than 6hours to bring the whole thing backup (including rebuilding the machine, restoring from tape and eating dinner) so I feel good about our ability to recover from a disaster. and I'm not afraid of the WORST anymore with raid5. the logs screamed holy hell so I knew what was RIGHT away. so all in all I'm glad we're through it. though a hot spare is in the plans for the next iteration of this array :) -sv
Re: raid5 failure
Could this be a powersupply failure? For example. I've seen 144 V on the motherboard. None of the drives survived as you can expect. It was after a storm with lightnings :-) Szilva -- http://www.wbic.cam.ac.uk/~sj233
