During deactivation and activation of VG is changing the PV name every time for mirrored disk

Hi
I have presented a single disk of 10gb from HPE XP array to one of the RHEL host and presented 3 disks of size 10 Gb to another RHEL host. Synchronized the host 1 disk to host 2 disk 1, disk 2 and disk3 separately . (called 1:3 mirror). This mirroring done in disk array level
Enabled multi path and created partition for host 1 disk only then created PV, VG, LV and FileSystem then mounted the filesystem.
After that ran the command partprobe on host 2 it listed the PV, VG and LV.
During backup of the disk our Backup tool is doing activating and demotivating the VG that time PV name is keep on changing. First time it is showing pv name as example disk1_part1, 2nd time vgdisplay is showing pv name as disk2_part1 and third time disk3_part1. If i run pvchage -u , it is failing on host 2 due to changing the PV name. Due to this reason our backup is failing.
But earlier RHEL versions 6.3 we didn't face this problem. Please guide us, what needs to be done in our side.

Host OS: RHEL 7.2
Disk Array: HPE XP
LVM : Default

Thanks