Symptom:
You have a primary system that is updated to 2.5 from 2.0 version, and you want to add HA.  You build the HA using the OVA that you have (either 2.0.1.2 or 2.0.1.107).

In order to add HA, the HA must be the same version as the primary. if you update the standalone HA from 2.0.1.2 to 2.0.1.302 ( 2.0 MR3), then Update to 2.5, then update to 2.5 failed.

Conditions:
This issue impacts to system which has been Updated from current existing 2.0 MR1 or MR3 or MR4 version to 2.5, and need to add HA after Update.  Before add HA, the HA alone system will be installed with 2.0 MR1 OVA in this case. If the Standalone HA (built with 2.0 FCS or 2.0 MR1 OVA) is  updated to 2.0 MR3 or MR4, then update to 2.5, it runs into this failure.

Also, Update standalone HA directly with version 2.0 MR4 or earlier  are not supported due to CSCuq70650.