Why does LVM/LVM-activate resource fails to stop when Commvault backup software is configured?

Issue

• Even though Filesystem resource(s) is stopped (i.e. filesystem is unmounted), still the VG is unable to get deactivated.
• Stop operation is failing on LVM resource after commvault snapshot backup.
• When a relocation of the LVM or LVM-activate is triggered and the setup has Commvault backup software configured for the backup, the cluster resource fails to deactivate.
• Command pcs resource move fail to deactivate the VG and fenced the node after Commvault snapshot backup:

lvm_stop_0 on node1.local 'error' (1): call=496, status='complete', exitreason=testvg: failed to deactivate.'