[DRBD-user] DRBD setup problem

Florian Haas florian.haas at linbit.com
Wed Mar 26 08:43:03 CET 2008

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


On Tuesday 25 March 2008 20:15:57 Szasz Tamas wrote:
> Hi list,
>
> I installed drbd-8.2.5 from source on a running system. I have moved all
> from the /var partition to a created /var directory. I want to use this
> free partition(/var) to drbd. When I want to start the drbd, I get this
> error: # drbdadm create-md data
> v08 Magic number not found
> md_offset 67225174016
> al_offset 67225141248
> bm_offset 67223089152
>
> Found ext3 filesystem which uses 66589392 kB
> current configuration leaves usable 65647548 kB
>
> Device size would be truncated, which
> would corrupt data and result in
> 'access beyond end of device' errors.
> You need to either
>    * use external meta data (recommended)
>    * shrink that filesystem first
>    * zero out the device (destroy the filesystem)
> Operation refused.

Autoresponder says:

- you created your filesystem before you created your DRBD resource, or
- you created your filesystem on your backing device, rather than your DRBD 
device,
- neither of which is a problem by itself
- except you need to enlarge the device, shrink the filesystem, or place the 
metadata somewhere else.

Cheers,
Florian

-- 
: Florian G. Haas
: LINBIT Information Technologies GmbH
: Vivenotgasse 48, A-1120 Vienna, Austria

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