Let me expalin first what i have done.
I have changed the IP addresses in the NAS and Nam from 192.168.12.2 and 192.168.20.2
Primary Nas 172.18.13.4
Secondaru Nas 172.18.13.3
Servive IP 172.18.13.2
Primary NAM 172.18.15.2
Secondary NAM 172.15.3
Service IP 172.18.15.4
Failover is configured tested through cli and its working.
Now when i add NAS into NAM, The primary NAS lost its connectivity and is unreachable. Even after logging into the NAS through CLI, I am unable to reach its the gateway which in our case is the Ip address of core switch SVI. However the secondary NAS is reachable.
I have tried linux commands like service network restart but it does not work. I suspect that there would be some files where we have to change the IP addresses aslo. For CAS failover interface eth2, when i set the the ip address , it is effective untl i reload.
Now how to move forward.
or do we have to restore the default configuration of NAS and NAM and do it from the scrath. and how can we do that.