Re: [Xen-users] Live migration and drbd

[Nathan Stratton <nathan@xxxxxxxxxxxx>]

On Mon, 10 Nov 2008, Andrew Lyon wrote:

> > http://www.asplund.nu/xencluster/xen-cluster-howto.html
> I plan to try this soon, I've read the guide and it all makes sense to
> me, but could somebody explain why using drbd on top of lvm is
> preferable to using drbd with physical devices and lvm on the drbd
> devices?
I would also love to know the answer to this, currently I am running;

Disk > DRBD > LVM2 > GFS > xen tap:aio

and:

Disk > DRBD > LVM2 > xen phy:{lvm lv}

The 2nd is obliviously faster, then the first, but I have not moved 
everything over yet.
Would moving DRBD on LVM2 make things faster or slower? The downside I can 
see is that you need to build a DRBD config for every domu, what makes 
this overhead worth it?

> <>
Nathan Stratton                                CTO, BlinkMind, Inc.
nathan at robotics.net                         nathan at blinkmind.com
http://www.robotics.net                        http://www.blinkmind.com

_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users