Re: RAID failed and machine freeze. Help me please! (Poor story about my RAID)
hi ya andrea
On Fri, 23 Sep 2005, Andrea Ganduglia wrote:
> Sep 21 17:43:55 backup kernel: md: kicking non-fresh sdc1 from array!
> and :~# cat /proc/mdstat
yes sir ri bob...
> Personalities : [raid0] [raid1] [raid5]
> md1 : active raid5 sda3 sdd3 sdc3 sdb3
> 873293184 blocks level 5, 64k chunk, algorithm 2 [4/4] [UUUU]
good ... raid5 is clean
> md0 : active raid1 sda1 sdd1 sdb1
> 1461760 blocks [4/3] [UU_U]
says sdc1 is bad
and you have 4 disks that are identical ...
- so in theory you should not have a problem
unless the bad disk sdc1 is telling the others to copy
the bad disk sdc1
> I don't know there is/are disk/s where problem is located
see the boot messages again ( as you have already posted it )
> and I don't know how I can repaire it.
take /dev/sdc1 out of the raid ...
- and if it comes back .. good ..
watch /proc/mdstat to make sure it's done resyncing before
doing anyting to the system other than logging in
when its done ...
- put /dev/sdc1 back in ... stop and start raid ..
and watch the resync
- reboot and hope and pray it likes it this time
- if not you may or may not have a bad disk /dev/sdc1
or the other bad disks have ganged up on the good disk
> I don't know, again, if problem are HD, swap,
> or other hardware parts.
anything could be the problem ... time to experiment
time to save your raid5 data elsewhere before you start playing
- save it to someplace else that you have not been using
so that you don't corrupt what was last weeks good data
in the normal backups