Node 2 is Failed to Join Cluster Membership

Hi Experts,

We have two NAS server hardware with HP GL380c and its installed with SuSe linux 8.0 OS ,On top of it we have installed the SFS 5.7 .We are trying to perform the Failover Testing with the Servers.

First we tried to shutdown the NAS 2  and once it poweron back it cannot able to join the CLuster membership with NAS 1 .

After complete investigation we found that the main.cf file got corrupted.

I need a solution how come the main.cf file got corrupted and what is the way forward to test the redundancy and share me any commands to test the same without any issue.