I am wanting to use Xen (3.3.1) hypervisior and support "live migration" on CentOS 5.2. However how can I ensure that when I migrate this to the next dom0 that this guest will be on /dev/dm-5?? I was thnking of using /dev/disk/by-path I have 99 entries, and we should not be addressing a single path of a dm-multipath. What I''m wondering is what''s the best way to configure my nodes to leverage Live Migration with dm-multipath. Thanks. _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
JASTRZEBSKI Philippe
2009-Jun-11 09:49 UTC
Re: [Xen-users] Xen 3.3.1 & Fiberchannel/LiveMigration
All my volumes are store on a SAN In all these volumes we have LVM build on dm-multipat One VG for a VM. And one LV for each partition (root, /var/ , /tmp, /opt, swap, ...) On the cluster, the DISKs are specified by there the logical volume names /dev/[VG NAME]/[LV NAME] eric santelices wrote:> > I am wanting to use Xen (3.3.1) hypervisior and support "live migration" > on > CentOS 5.2. However how can I ensure that when I migrate this to the next > dom0 that this guest will be on /dev/dm-5?? > > I was thnking of using /dev/disk/by-path I have 99 entries, and we should > not be addressing a single path of a dm-multipath. What I''m wondering is > what''s the best way to configure my nodes to leverage Live Migration with > dm-multipath. > > Thanks. > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users >-- View this message in context: http://www.nabble.com/Xen-3.3.1---Fiberchannel-LiveMigration-tp23963659p23978333.html Sent from the Xen - User mailing list archive at Nabble.com. _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
On 6/10/2009 8:36 AM, eric santelices wrote:> I am wanting to use Xen (3.3.1) hypervisior and support "live > migration" on CentOS 5.2. However how can I ensure that when I > migrate this to the next dom0 that this guest will be on /dev/dm-5?? > > I was thnking of using /dev/disk/by-path I have 99 entries, and we > should not be addressing a single path of a dm-multipath. What I''m > wondering is what''s the best way to configure my nodes to leverage > Live Migration with dm-multipath.I haven''t really played with dm-multipath much. But is there a link to the multipath device in /dev/disk/by-uuid? That might be one way to take care of it. The only other way I can think of is using udev rules to make sure the devices are always the same but that could get ugly. mike _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users