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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
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