[ovirt-users] Failed to activate Storage Domain --- ovirt 4.2

Hi Has anyone experiencing the following issue with Storage Domain - Failed to activate Storage Domain cLUN-R940-DC2-dstore01 -- VDSM command ActivateStorageDomainVDS failed: Storage domain does not exist: (u'1b0ef853-fd71-45ea-8165-cc6047a267bc',) Currently, the storge Domain is Inactive and strangely, the VMs are running as normal. We can't manage or extend the volume size of this storage domain. The pvscan shows as: [root@uk1-ion-ovm-18 pvscan /dev/mapper/36000d310056978000000000000000014: Checksum error at offset 4397954425856 Couldn't read volume group metadata from /dev/mapper/36000d310056978000000000000000014. Metadata location on /dev/mapper/36000d310056978000000000000000014 at 4397954425856 has invalid summary for VG. Failed to read metadata summary from /dev/mapper/36000d310056978000000000000000014 Failed to scan VG from /dev/mapper/36000d310056978000000000000000014 I have tired the following steps: 1. Restarted ovirt-engine.service 2. tried to restore the metadata using vgcfgrestore but it failed with the following error: [root@uk1-ion-ovm-19 backup]# vgcfgrestore 36000d310056978000000000000000014 Volume group 36000d310056978000000000000000014 has active volume: . WARNING: Found 1 active volume(s) in volume group "36000d310056978000000000000000014". Restoring VG with active LVs, may cause mismatch with its metadata. Do you really want to proceed with restore of volume group "36000d310056978000000000000000014", while 1 volume(s) are active? [y/n]: y /dev/mapper/36000d310056978000000000000000014: Checksum error at offset 4397954425856 Couldn't read volume group metadata from /dev/mapper/36000d310056978000000000000000014. Metadata location on /dev/mapper/36000d310056978000000000000000014 at 4397954425856 has invalid summary for VG. Failed to read metadata summary from /dev/mapper/36000d310056978000000000000000014 Failed to scan VG from /dev/mapper/36000d310056978000000000000000014 /etc/lvm/backup/36000d310056978000000000000000014: stat failed: No such file or directory Couldn't read volume group metadata from file. Failed to read VG 36000d310056978000000000000000014 from /etc/lvm/backup/36000d310056978000000000000000014 Restore failed. Please let me know if anyone knows any possible resolution. -AMinur