Problem:
The system had a failover incident. It fails over to the secondary system without any issue. But when trying to failback the volumes they did not get synchronized and I could not failback.
Symptoms:
Trying to create a new failover task and got "error 25 - No destination volume found." Under the volume replication task primary and secondary systems have Destination mode.
Solution:
The recap for the problem was:
* Turn off iSCSI Failover Manager on Primary
* Disable all iSCSI Failover Tasks on Primary & Standby
* Delete all Volume Replication Tasks on Primary
* Toggle Volume Replication bit for each Logical Volume on Primary & Standby (don't Initialize!)
* Create all Volume Replication Tasks on Primary
* On Standby Only, change each Volume Replication Volume to destination mode
* On Primary Only, start all volume replication tasks
* On Primary Only, add all Volume Replication Tasks to the Failover Manager
* On Primary Only, start iSCSI FailOver Manager