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 at 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 > > _______________________________________________ > CentOS-virt mailing list > CentOS-virt at centos.org > http://lists.centos.org/mailman/listinfo/centos-virt > -- Frederic Soulier DSI / Service Système Université Toulouse 1 Capitole 2 rue du doyen Gabriel Marty 31 042 Toulouse Cedex 9 Tel: +33 5 61 63 39 98 Fax: +33 5 61 63 37 98