WARNING - OLD ARCHIVES

This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
   
 
 
Xen 
 
Home Products Support Community News
 
   
 

xen-users

Re: [Xen-users] Live migration and drbd

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