There is small correction in my above email: > so I assume something is wrong with taking the snap > dmsetup message /dev/mapper/VG-POOL-tpool 0 release_metadata_snap I meant : dmsetup message /dev/mapper/VG-POOL-tpool 0 reserve_metadata_snap On Tue, Nov 24, 2015 at 1:40 PM, shankha <shankhabanerjee@gmail.com> wrote: > I tried out the latest version (device-mapper-persistent-data-0.5.5-2) > of thin dump (). > I still get the error message : > > "metadata contains errors (run thin_check for details). > perhaps you wanted to run with --repair" > > so I assume something is wrong with taking the snap > > dmsetup message /dev/mapper/VG-POOL-tpool 0 release_metadata_snap > > Thanks > Thanks > Shankha Banerjee > > > On Tue, Nov 24, 2015 at 11:03 AM, shankha <shankhabanerjee@gmail.com> wrote: >> I am trying to run thin dump on the snapshot of lvm thin pool metadata. >> >> The commands used to generate the snapshot and take the thin dump output are: >> >> dmsetup message /dev/mapper/VG-POOL-tpool 0 reserve_metadata_snap >> block_no=`dmsetup status /dev/mapper/VG-POOL-tpool | cut -f 7 -d " "` >> >> thin_dump -f xml /dev/mapper/VG-POOL_tmeta -m $block_no >> >> dmsetup message /dev/mapper/VG-POOL-tpool 0 release_metadata_snap >> >> While creating the snapshot I am dumping data to the thin volume. >> >> The error message I get is: >> "metadata contains errors (run thin_check for details). >> perhaps you wanted to run with --repair" >> >> Is there something wrong with the way I am using the commands ? >> >> Thanks _______________________________________________ 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/
