[dm-devel] multipathing in debian lenny with sychronized data between 2 servers

Oliver Rojo orojo.horus at gmail.com
Mon Dec 6 19:13:47 UTC 2010


Yes I've tested without multipathing.

On Server A, it shows /dev/dm-0 as the fs to mount and /dev/dm-3 on Server
B.

Mounting it on /data and writing files into Server A, all those files
written are not reflecting on Server B and vice versa. Do I need to use GFS2
on this scenario?

On Mon, Dec 6, 2010 at 11:01 AM, Christophe Varoqui <
christophe.varoqui at gmail.com> wrote:

>
> > I'm having issues right now using HP Storageworks P2000 G3 MSA with Dual
> > Fiber Channel connected on each host (2 Servers). I've already configure
> > multipathing and mounted my multipath alias (/dev/mapper/data to /data)
> > but everytime I put some data inside /data/ on Server 1, it doesn't
> > reflect on Server2 and vice versa. Is there any tweak on this?
> >
> have you tested that without multipathing ?
>
> I understand you use a filesystem there ... A clustered fs like ocfs2 or
> gfs2 would be necessary to synchronize your caches. If you are not using one
> of those, the fs should be mounted on a single node at a time.
>
> Regards,
> cvaroqui,
> opensvc
>
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