Re: Problems after reshaping of Raid5 array

[Michele Bonera <mbonera@gmail.com>]

Il giorno lun, 29/11/2010 alle 20.12 +0100, Jan Ceuleers ha scritto:

> I've had similar problems, which I resolved by changing the partition 
> type from fd (Linux RAID autodetect) to 83 (Linux), ensuring that the 
> initrd is able to assemble the RAID.
> Worth a shot.
> HTH, Jan

Thanks for the reply, Jan, but the problem is not at raid level, or
better, the raid just finished to reshape and now has 5/5 of his
components and is active:

root@mizar:~# cat /proc/mdstat 
Personalities : [raid6] [raid5] [raid4] [linear] [multipath] [raid0]
[raid1] [raid10] 
md6 : active raid5 sdf1[2] sdb1[0] sda1[1] sdc[4] sde1[3]
      3438905344 blocks level 5, 128k chunk, algorithm 2 [5/5] [UUUUU]


The problem is that I added a device partition (sdc1) but after the
crash the array has sdc (the device) as one of his components. The
partition table on the disk was wiped-out.

The result is that the filesystem on it (dev/md6) is unreadable and
fsck.ext3 can't fix it.

Bye
--
Michele Bonera
linux user group brescia