On lun, 2005-10-31 at 15:04 -0500, Bruen, Mark wrote: > I would like to use "device mapper" for multipathing which I have setup > and Veritas Volume Manager for Virtualization. I normally create LUNs > on the SAN and they show up as /dev/sdX, /dev/sdY, etc... I initialize > them for use with Veritas Volume Manager which allows me to expand > filesystems across multiple LUNs, create snapshots, split disks off for > deporting, etc... > I have many years of Veritas experience and none with LVM so I would > (for now anyway) like to use the multipathed devices /dev/dm-N with > Veritas. Is it possible? > Thanks. > -Mark > There are some issues in this field : /dev/dm-* might or might not exist, might be duplicate of /dev/mapper/ entries, paths appear as /dev/sd* nodes and are not hidden. The Volume manager has to deal with these things. Even LVM2 has rough edges here. I would guess VxVM may have a hard time too. That said, this question will ultimately have to be responded by Veritas. I can image them saying that you'd better use *their* multipathing solution, being well integrated with the volume manager. The DM multipathing is easily disabled. Regards, cvaroqui -- dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
