hte main problem is that when I use pvchange -u it refuses to make operation to clsutered volume Volume Groups with the clustered attribute will be inaccessible. Found duplicate PV 46dU6F2rU9xqqOaWf8eihFwbdGp672lS: using /dev/mapper/mpathh not /dev/mapper/mpathk Found duplicate PV 5ZTDCmWHDH6M04nl58Wyyi3nYG8BOCRo: using /dev/mapper/mpathl not /dev/mapper/mpathi Skipping clustered volume group NetCluster0 0 physical volumes changed / 0 physical volumes not changed is there a way to remove the cluster bit from the volume itself ? thanks Rick On 4/23/12 3:44 AM, James A. Peltier wrote: > ----- Original Message ----- > | Hello, > | I have a Centos 6.2 clsuter with a CLVM partition on which I have a > | GFS2 > | file system. > | The problem rises when I make a snapshot from my FC NetAPP FAS2020. > | After I make the snapshot (it is a rw snapshot) of my LUN, I am not > | able > | to mount it from any of my cluster nodes, > | because the Physical Volume is seen two times one time on the > | standard > | LVM partition > | and the other time on the snapshot partition so te PV is foudn to be > | duplicate and I cannot mount it. > | > |> pvs > | Found duplicate PV 5ZTDCmWHDH6M04nl58Wyyi3nYG8BOCRo: using > | /dev/mapper/mpathl not /dev/mapper/mpathi > | PV VG Fmt Attr PSize PFree > | /dev/mapper/mpathk NetCluster0 lvm2 a-- 1.67t 1020.00m > | > | > | I need a hint on how to fix this problem. I need to access the > | snaphot > | volume to backup my data but I am unable to do it... > | > | thank you very much > > > HINT: You'll need to generate a new UUID/rename the PV. (pvchange -u) >