[DRBD-user] File data corrupt when I switch Nodes

Kevin Izzet Kevin.Izzet at nsc.com
Tue Aug 31 17:16:44 CEST 2004

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.

Hi Lars,

Couldn't get a fresh SVN due to our firewall setup (not locally managed so 
can't change) so
I modified the drbd_config.h in the version i have and rebuilt the modules 
(on both nodes).

I then restarted drbd on both nodes and forced a full resync of the 
secondary node, now
when I try and mount the file system on the secondary node i get the 
following error :-

 ./Filesystem /dev/drbd0 /drbd0 ext3 start 
mount: wrong fs type, bad option, bad superblock on /dev/drbd0,
       or too many mounted file systems
2004/08/31_16:07:25 ERROR: Couldn't mount filesystem /dev/drbd0 on /drbd0

When I check the /var/log/messages file  I can see the following error :-

EXT3-fs error (device drbd(147,0)): ext3_check_descriptors: Block bitmap 
for group 512 not in group (block 4294967295)!
EXT3-fs: group descriptors corrupted !

If I restart on what was the primary node then all appears to be ok......


Kevin Izzet

Database / Unix  Administrator
Tel:     (Code)+44(0)1475 655606
Fax:    (Code)+44(0)1475 637755
Email:  Kevin.Izzet at nsc.com

"Lars Ellenberg" <Lars.Ellenberg at linbit.com>
Sent by: drbd-user-bounces at lists.linbit.com
31/08/2004 13:46

        To:     drbd-user at lists.linbit.com
        Subject:        Re: [DRBD-user] File data corrupt when I switch Nodes

/ 2004-08-31 13:25:09 +0100
\ Kevin Izzet:
> Hi Lars,
> I'm using the Suse Kernel 2.4.21-99-smp4G, not sure if that makes an
> difference or if I'm missing the point, I will give what you suggest a
> try anyway and see if it helps..

then that makes it more likely that we have an issue with 2.4. in general,
or even a generic issue with drbd.


                 Lars Ellenberg

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