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. does anyone have any ideas? Thanks in advance Liam _______________________________________________ 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/
