In order to do migrations, the systems need to share common file storage. I have two choices, SAN or NetApp. Can the disk images be located on NFS? If I use SAN, what is the typical configuration? Wouldn''t it require something like GFS? Thanks. Glenn _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Hello. The disk image can be either SAN or NAS, as long as the media can be shared by 2 hosts without interfering with one another. You don''t need a clustered FS (Like GFS), since the image is accessed by only one machine at any given time. A few emails back someone posted this link about live migration: http://www.linux.com/article.pl?sid=06/07/17/1916214 +Katriel Glenn W. Bach wrote:> In order to do migrations, the systems need to share common file storage. I have two > choices, SAN or NetApp. Can the disk images be located on NFS? If I use SAN, what is the > typical configuration? Wouldn''t it require something like GFS? > > Thanks. > > Glenn > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users-- Katriel Traum, PenguinIT RHCE, CLP Mobile: 054-6789953 _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
On Friday 28 July 2006 12:02 pm, Glenn W. Bach wrote:> In order to do migrations, the systems need to share common file storage. I > have two choices, SAN or NetApp. Can the disk images be located on NFS? If > I use SAN, what is the typical configuration? Wouldn''t it require something > like GFS?to get migrations, the storage for a VM must be equally accessible from both hosts; if you use file-backed storage, that means accessing a shared filesystem, typically NFS. if you use block-level storage, that means accessing a shared block-storage, that''s a SAN. the shared block-storage must be partitioned somehow, the most ''linux'' way to do it is LVM (the other way is to use LUNs on the block devices, don''t know much about this). it''s more manageable to use CLVM, or EVMS-heartbeat, but that''s all, you don''t need the full GFS stack. -- Javier _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users