Yes dag01.corp.dir is the DAG name and not the server name.
After changing the Backup Selection to -> Database Availability Groups -> i get the error 2, too.
And what is this for a error ???
11.08.2015 16:07:59 - Error bpbrm (pid=8062) You cannot use the backup directive for Database Availability Groups for an Exchange Standalone backup
11.08.2015 16:07:59 - Info bpresolver (pid=16456) done. status: 72: the client type is incorrect in the configuration database
OMG, i hate exchange :-(
Here the full Job Log.
11.08.2015 16:07:39 - Info nbjm (pid=18305) starting backup job (jobid=5572758) for client dag01.corp.dir, policy Exchange_Fr_DAG01, schedule FULL
11.08.2015 16:07:39 - Info nbjm (pid=18305) requesting MEDIA_SERVER_ONLY resources from RB for backup job (jobid=5572758, request id:{5365B57E-4032-11E5-AF41-00212858BCB3})
11.08.2015 16:07:39 - requesting resource ADVD_Retention_11J
11.08.2015 16:07:39 - requesting resource nbumaster.NBU_CLIENT.MAXJOBS.dag01.corp.dir
11.08.2015 16:07:39 - requesting resource nbumaster.NBU_POLICY.MAXJOBS.Exchange_Fr_DAG01
11.08.2015 16:07:39 - requesting resource EXCHANGE_RESOLVER.nbumaster.Exchange_Fr_DAG01.dag01.corp.dir
11.08.2015 16:07:39 - granted resource nbumaster.NBU_CLIENT.MAXJOBS.dag01.corp.dir
11.08.2015 16:07:39 - granted resource nbumaster.NBU_POLICY.MAXJOBS.Exchange_Fr_DAG01
11.08.2015 16:07:39 - granted resource EXCHANGE_RESOLVER.nbumaster.Exchange_Fr_DAG01.dag01.corp.dir
11.08.2015 16:07:40 - estimated 0 kbytes needed
11.08.2015 16:07:40 - begin Parent Job
11.08.2015 16:07:40 - Info RUNCMD (pid=8055) started
11.08.2015 16:07:40 - Info RUNCMD (pid=8055) exiting with status: 0
Operation Status: 0
11.08.2015 16:07:40 - end Parent Job; elapsed time 0:00:00
Operation Status: 0
Operation Status: 0
11.08.2015 16:07:41 - started process bpbrm (pid=8062)
11.08.2015 16:07:42 - Info bpbrm (pid=8062) dag01.corp.dir is the host to restore to
11.08.2015 16:07:42 - Info bpbrm (pid=8062) reading file list for client
11.08.2015 16:07:47 - Info bpbrm (pid=8062) client_pid=16456
11.08.2015 16:07:47 - Info bpbrm (pid=8062) from client dag01.corp.dir: TRV - BPRESOLVER has executed on server (FRSP0173)
11.08.2015 16:07:59 - Info bpresolver (pid=16456) done. status: 2
11.08.2015 16:07:59 - Error bpbrm (pid=8062) You cannot use the backup directive for Database Availability Groups for an Exchange Standalone backup
11.08.2015 16:07:59 - Info bpresolver (pid=16456) done. status: 72: the client type is incorrect in the configuration database
Operation Status: 0
11.08.2015 16:07:59 - Info RUNCMD (pid=8208) started
11.08.2015 16:07:59 - Info RUNCMD (pid=8208) exiting with status: 0
Operation Status: 0
Operation Status: 2
Operation Status: 2
none of the requested files were backed up (2)