Re: [Xen-users] drbd on lvm

[Brock Palen <brockp@xxxxxxxxx>]

On Dec 15, 2006, at 12:37 PM, Ralf Schenk wrote:

> Brock Palen schrieb:
> > Has anyone ever used DRBD on top of LVM devices ?   Has anyone had a
> > problem with this?  Such that can grow and move around partiions etc,
> > and not have to use NFS on top of DRBD with spare files for storage.
> > Or can someone recomened a better way of doing with with no attached
> > shared storage.
> >
> > Each server has its own hard drive, and should mirror each other.
> >
> > Brock Palen
> > Center for Advanced Computing
> > brockp@xxxxxxxxx
> Hello !
>
> I'm using XEN 3.0.2-3 with Kernel 2.6.16.29 on Ubuntu Dapper Server  
> 6.06
> with a XEN DomU on a DRBD Device (Version 8.0pre6) on LVM. It's in
> production only since Sat, Nov 11.
>
> I didn't try to resize the underlying LVM device but I'm taking daily
> snapshots and do rsync backups of the snapshots.
>
> This works for me, but check out drbd.org and the DRBD changelogs
> because afaik DRBD on LVM is supported only in the 8.0pre series  
> not in
> the stable 0.7.X.
>
> In the changelog of 8.0 you find an entry:
>
> 8.0pre3 (api:82/proto:80)
> --------
>  * Now it works on device mapper (LVM) as well as on "real" block  
> devices.
>  * Finally (after years) a sane "drbdadm adjust" imprementation,  
> which is
>    really really robust.
Ah i remember reading about this a year ago when i first heard about  
it.   0.8 has been in devolpment for a long time.  How stable has it  
been for you?  I really would like to avoid doing NFS :-)  (as i kick  
our NFS appliance on our Compute cluster)
> ...
>
>
> --
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