On Fri, 2005-02-04 at 02:26, Nigel Jewell wrote: > The intention of the setup was to have two hosts both exporting an > unmounted device, and the alternative device using it as a RAID-1 > device. Then to use heartbeat to mount and unmount the partitions as > required. For example: > > HOST A: > > /dev/hda1 (md0, ext3, mounted) > /dev/hda2 (ext3, unmounted, gnbd_exported as A) > /dev/gnbd/B (md0, ext3, mounted) > > HOST B: > > /dev/hda1 (ext3, unmounted, gnbd_exported as B) > /dev/hda2 (md0, ext3, mounted) > /dev/gnbd/A (md0, ext3, mounted) > > I hope that makes sense. > > If so, does what we are trying to achieve sound sensible? Any > gotchas/advice? That sounds to me just like what DRBD (http://www.drbd.org/) was deigned to do. You might want to take a look at it. -- Tony Fraser tony@xxxxxxxxxxxxx Sybaspace Internet Solutions System Administrator phone: (250) 246-5368 fax: (250) 246-5398