Re: Many warnings
As i can see in you environment the NW server, SN and Client is the same host. in this case u can create a client wid srvbackup.mydomain.com and make the storage node as srvbackup.mydomain.com or nsrserverhost. here nsrserverhost is ur NW server which is same as srvbackup.mydomain.com.
In case u have created ur SN as srvbackup only instead of srvbackup.mydomain.com u can also add the alias name srvbackup.mydomain.com in client properties--> Global (1 of 2)-->aliases. It will be affected to all the client instances