Stuart D. Gathman wrote on Tue, 9 Dec 2008 11:54:08 -0500 (EST): Hallo, thanks for the suggestions. I'll try to follow that logically and with possible commands, see below with comments/questions. > 1) remove sda from md2 array mdadm /dev/md2 --fail /dev/sda3 --remove /dev/sda3 > 2) use dd or pvremove to clear PV info in md2. This should not > affect sda since sda is removed from md2 md2 shouldn't have PV info. do you mean sdb3? (this would destroy my data on sdb3 then), so: vgchange dom0 -an (deactivate the LVs on sdb3) pvremove /dev/sdb3 ? After this point a pvdisplay should show /dev/sda3 as the active PV for dom0. (At the moment I get: "using /dev/sdb3 not /dev/sda3") > 3) pvcreate md2 as a new PV and add to volume group pvcreate /dev/md2 I fear I will get "device busy", not? (just a feeling from recent experience with juggling with md and lvm that are on top of each other) vgextend dom0 /dev/md2 (dom0 then consists of sda3 and md2) > 4) pvmove sda -> md2. The data should physically go on sdb, or whatever the > other mirror of md2 is. ok > 5) check that all LVs are gone from sda, and remove from volume group vgreduce dom0 /dev/sda > 6) pvremove sda ok > 7) add sda to md2 array, and synchronize. ok Did I get it so far correctly? What about (2) (3) where I'm not sure? Kai -- Kai Schätzl, Berlin, Germany Get your web at Conactive Internet Services: http://www.conactive.com _______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
