On 03/12/2010 08:55, Pasi Kärkkäinen wrote:
On Fri, Dec 03, 2010 at 12:45:22PM +0530, Rajagopal Swaminathan wrote:
Greetings,
On Fri, Dec 3, 2010 at 12:37 AM, Fabian Arrotin fabian.arrotin@arrfab.net wrote:
Adam Wead wrote:
Hi all,
Why would so much people use a clusterfs for Virtualization ? Just use lvm and a logical volumes for your guests.
Did you mean CLVM? Where does snapshot stand?
bitty outta touch with tech these days...
You can also use normal LVM over shared iSCSI LUN, but you need to be (very) careful with running LVM management commands and getting all the nodes (dom0s) to be in sync :)
(Citrix XenServer does this, but there the management toolstack takes care of the LVM command execution + state synchronization).
Hi,
We use this solution on a san shared storage with Xen and Centos 5 for 3 years now and i confirm that works fine. We use live migration without problem. We "manage" the pool of xen server from standalone server. This server assume only one instance of a vm run on the pool.
We plan to migrate with kvm and centos 6. We thinked about the opportunity to move to a clusetred/shared filesystem in order to take benefits of the qcow2 image file format (snapshot, diff, etc...)
Googling a lot, it seems there is 2 solution : * NFS fileserver * ClusterFileSystem on the san (FC,iscsi,etc...)
As anyone have advices/experiences in production with these solutions ?
We have here a good hadware (SAN FC, multipathing, etc....) and the clusteringFileSystem seems to be the solution but we search about the best/simple solution (easy to manage) and the rhcs seems to be complex.
-- Pasi
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