[DRBD-user] DRBD below or on top of LVM

[H.D.]

Sorry to bring up that old thread again.

Can I really take snapshot on node1, do lvscan on node2, mount it there 
an take the backup? Don't I need CLVM for that?

Thanks for clarify.


On 14.02.2007 17:51, Graham Wood wrote:
> If you run DRBD at the bottom of the stack, it's a little more 
> complicated.  At this point the primary node needs to be more aware of 
> what's going on, since (I believe) creating the snapshot has an affect 
> on the initial volume.  There is work being done on cluster aware 
> snapshotting, but I can't remember if it's production ready yet.  The 
> advantage of doing it this way, however, is that you can do all the lvm 
> work on the primary, and then tell the secondary to backup the created 
> snapshot - as opposed to needing to run tasks in a co-ordinated fashion 
> on the two nodes.  Any restore can be done back to the device that 
> you've backed up - since it's on top of DRBD


-- 
Regards,
H.D.