Services cannot start or backup may fail if PBX version is not compatible with the NetBackup version
During a NetBackup upgrade, the Veritas Private Branch Exchange (PBX) is also upgraded. However, because of the following reasons, the PBX version and the NetBackup version may not be compatible after the NetBackup upgrade.
The PBX upgrade is not successful.
NetBackup software on one of the hosts is downgraded, but the PBX is not downgraded.
Your backup environment consists of a Veritas product other than NetBackup. The other product is upgraded and that caused PBX upgrade.
Note:
If the NetBackup version is 8.1, the PBX version must be v1.7.4.0 or later.
To check the current PBX version, run the following command:
On Windows:
install_path\VxPBX\bin\pbxcfg -v
On UNIX:
/opt/VRTSpbx/bin/pbxcfg -v
To resolve the issue:
Contact the Veritas Technical Support team and get the PBX version installed that is compatible with the existing NetBackup version.