[DRBD-user] drbd and LVM -> always getting duplicate volumes (was: can't use LVM2 on drbd devices)

Carlos Xavier cbastos at connection.com.br
Thu Jan 24 21:41:45 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.

Im sorry for being late again.
This filter iwas made in order to include the drbd device and make lvm 
ignore the real device, so this way i dont have to deal with any link. Lvm 
is happy then not seeing a duplicated PV, since it ignores  the devices 
preceeded  by ["r|/dev/xxx", ......].

But at the end I give up on LVM and choose a bether setup with OCFS2 over 

> I got that problem solved, see my earlier posts.
> With your setup however, if you excluded drbd devices, your LVM would 
> operate on the real devices, like /dev/dm-XY (which would be in turn 
> /dev/sda etc). Because of this, DRBD would not see the changes happening 
> on LVM level, and your mirror is likely to be broken now?
> However I'm not familiar with your setup, maybe excluding these two drbd 
> devices was justified.
> What does "pvs" show?
> -- 
> Tomasz Chmielewski
> http://wpkg.org

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