[DRBD-user] Ext 3 Errors

Lars Ellenberg Lars.Ellenberg at linbit.com
Tue Sep 6 11:56:13 CEST 2005

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


/ 2005-09-03 10:54:46 +0530
\ Amod Sutavane:
> Hi All ,
> 
> i have implemented DRBD+heartbeat successfully a month ago. I have used drbd 
> 0.7.11 for configuration for clustering. Suddenly couple of days back i 
> started getting the following errors on primary server continuously,,,
> 
> attempt to access beyond end of device
> 93:00: rw=0, want=72220676, limit=72145328

you happen to use a filesystem that was created on the lower level
device, with drbd internal meta data, and you did not shrink the file
system before you let drbd put its meta data into the last 128MB of the
device?

Oh well.

you take a downtime,
make a backup of those 35 GB you have, just in case,
fsck the device,
  let drbd use external meta data,
OR
  shrink the file system by 128MB

you make the "good" node primary, and you use the --human flag,
 drbdsetup /dev/drbd0 primary --human

  if you are paranoid,
  you fsck the device again.


only now (the "good data" node is primary) do you
start drbd again on the other node.

-- 
: Lars Ellenberg                                  Tel +43-1-8178292-0  :
: LINBIT Information Technologies GmbH            Fax +43-1-8178292-82 :
: Schoenbrunner Str. 244, A-1120 Vienna/Europe   http://www.linbit.com :
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