My personal preference is not to use Deployment Manager and use tools like Chef or Puppet for Centrify client deployment. This eliminates unnecesary components or complexity.
Some final observations:
"when I installed agnet via DirectManager console then why it was not added to domain only on this server and how it was added to other server and I did not get any error during deployment steps"
That's because when you do step 4, you have to specify the checkbox "join active directory" in the wizard and provide an AD account.
[root@m2 ~]# /etc/init.d/centrifyd
centrifyda centrifydc
I noticed that you deployed our Audit client. You have to remove it since this capability requires Enterprise Edition.
Remove with yum or rpm. This added unnecessary configurations to your system.
R.P