[linux-lvm] LVM+Raid1 disappeared

[linux-lvm] LVM+Raid1 disappeared

[Ron Murray]

   I'm running Debian testing on a Sun Enterprise250. Sun disks being
what they are, I decided to run RAID5 so that when (note: not *if*)
one of the disks failed, I should be able to restore things relatively
easily.

   I had to turn the box off overnight last week, and now the kernel
doesn't see the RAID disks. pvscan gets me:

curly2:~# pvscan
  Found duplicate PV lVJ7V1wRK3QGepVDxfial74eu5QLFNRm: using /dev/sdc4
  not /dev/sdb4
  Found duplicate PV lVJ7V1wRK3QGepVDxfial74eu5QLFNRm: using /dev/sdc4
  not /dev/sdb4
  Couldn't find device with uuid
  'X5DQ86-BLG4-4jrU-EhoW-SXDK-5vG0-cbDIOG'.
  Found duplicate PV lVJ7V1wRK3QGepVDxfial74eu5QLFNRm: using /dev/sdc4
  not /dev/sdb4
  Couldn't find device with uuid
  'iQppUI-rAzn-SM3d-TCb5-tjyF-CtQi-eiKGKu'.
  PV /dev/sdb4        VG curly_vg   lvm2 [16.04 GB / 0    free]
  PV unknown device   VG curly_vg   lvm2 [3.98 GB / 0    free]
  PV unknown device   VG curly_vg   lvm2 [3.99 GB / 2.23 GB free]
  Total: 3 [24.01 GB] / in use: 3 [24.01 GB] / in no VG: 0 [0   ]

and mdadm --examine /dev/md0 gets me:
  mdadm: /dev/md0 is too small for md

Kernel is 2.6.11, compiled by me. LVM is version 2.

Any suggestions? More information needed? I'm fairly new to both LVM
and RAID.

Thanks,

 .....Ron

--
Ron Murray   (rjmx@rjmx.net)
http://www.rjmx.net/~ron
GPG Public Key Fingerprint: F2C1 FC47 5EF7 0317 133C  D66B 8ADA A3C4 D86C 74DE

Re: [linux-lvm] LVM+Raid1 disappeared

[Luca Berra]

On Mon, Jun 13, 2005 at 06:46:07PM -0400, Ron Murray wrote:
>and mdadm --examine /dev/md0 gets me:
>  mdadm: /dev/md0 is too small for md
>
try to understand why md0 is not started at boot.
do you have a (non empty) /etc/mdadm.conf file?

L.

-- 
Luca Berra -- bluca@comedia.it
        Communication Media & Services S.r.l.
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