Thanks for your response.
Both clients are equal.
10/24/2014 11:00:42 AM - Info nbjm(pid=20604) starting backup job (jobid=62275) for client XXXXXssm001.DOMAIN.corp, policy SAPSSM_ORACLE, schedule SEMANAL
10/24/2014 11:00:42 AM - Info nbjm(pid=20604) requesting MEDIA_SERVER_WITH_ATTRIBUTES resources from RB for backup job (jobid=62275, request id:{3BEBFD9C-5B5C-11E4-9AEE-F640490B6ECB})
10/24/2014 11:00:42 AM - requesting resource stu_disk_bkp103
10/24/2014 11:00:42 AM - requesting resource bkp103.NBU_CLIENT.MAXJOBS.XXXXXXXssm001.XXXX.corp
10/24/2014 11:00:42 AM - requesting resource bkp103.NBU_POLICY.MAXJOBS.SAPSSM_ORACLE
10/24/2014 11:00:42 AM - granted resource bkp103.NBU_CLIENT.MAXJOBS.XXXXXXXssm001.XXXX.corp
10/24/2014 11:00:42 AM - granted resource bkp103.NBU_POLICY.MAXJOBS.SAPSSM_ORACLE
10/24/2014 11:00:42 AM - granted resource stu_disk_bkp103
10/24/2014 11:00:43 AM - Info bpbrm(pid=19026) XXXXXXXssm001.XXXX.corp is the host to backup data from
10/24/2014 11:00:43 AM - Info bpbrm(pid=19026) reading file list from client
10/24/2014 11:00:43 AM - estimated 0 Kbytes needed
10/24/2014 11:00:43 AM - Info nbjm(pid=20604) started backup (backupid=XXXXXssm001.DOMAIN.corp_1414141242) job for client XXXXXXXssm001.XXXX.corp, policy SAPSSM_ORACLE, schedule SEMANAL on storage unit stu_disk_bkp103
10/24/2014 11:00:43 AM - started process bpbrm (19026)
10/24/2014 11:00:43 AM - connecting
10/24/2014 11:00:44 AM - Info bpbrm(pid=19026) starting bphdb on client
10/24/2014 11:00:44 AM - Info bphdb(pid=656) Backup started
10/24/2014 11:00:44 AM - connected; connect time: 00:00:01
10/24/2014 11:00:57 AM - Error bpbrm(pid=19026) from client XXXXXXXssm001.XXXX.corp: ERR - Script <"D:\RMAN\SAPSMP_ORACLE.cmd"> failed with status: <1>
10/24/2014 11:00:57 AM - Error bpbrm(pid=19026) from client XXXXXXXssm001.XXXX.corp: ERR - bphdb exit status = 6: the backup failed to back up the requested files
10/24/2014 11:00:58 AM - Info bphdb(pid=656) done. status: 6: the backup failed to back up the requested files
10/24/2014 11:00:58 AM - end writing
the backup failed to back up the requested files(6)