On Fri, 2009-06-05 at 15:18 +0200, liam@landv.org.uk wrote: > Hi, > > I'm not sure if what I'm trying to do is possible or not but hopefully > someone out there can help!! > > I have a volume group which consists of a LUN (/dev/emcpowerv1) in an > EMC cabinet. To backup up the disk I use EMC technology to synchronise > a second LUN (/dev/emcpoweraf1) with the first, when the > synchronisation is complete I then break the connection. At this point > I have two identical volume groups exposed to the same host. What I > would like to do is rename the second volume group and mount its > logical volumes. However I can't because (understandably) LVM doesn't > like having two identical volume groups so when I issue pvchange -u I > get... > > > # pvchange -u /dev/emcpoweraf1 > Found duplicate PV dXiYI6nVqu8UpXO2mlaWiKKPKSBPrRbn: using /dev/emcpowerv1 not /dev/emcpoweraf1 > get_pv_from_vg_by_id: vg_read failed to read VG ! > /dev/emcpowerv1: write failed after 0 of 4096 at 4096: Operation not permitted > pv_write with new uuid failed for /dev/emcpowerv1. > 0 physical volumes changed / 1 physical volume not changed > > Notice I issue the command against /dev/emcpoweraf1 but it complains about writing to /dev/emcpowerv1. Take a look at the vgimportclone script posted to the lvm-devel list last month: http://www.redhat.com/archives/lvm-devel/2009-May/msg00130.html Regards, Bryn. _______________________________________________ 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/
