netbackup备份aix7.1上的oracle报错？

2017/12/6 2:10:02 - Info nbjm(pid=8056) starting backup job (jobid=12294) for client erpdb1, policy dbbackup, schedule Full
2017/12/6 2:10:02 - Info nbjm(pid=8056) requesting MEDIA_SERVER_WITH_ATTRIBUTES resources from RB for backup job (jobid=12294, request id:{4DBB5A35-490A-45F2-A6DD-F665730ED8CA})
2017/12/6 2:10:02 - requesting resource Any
2017/12/6 2:10:02 - requesting resource dbbackup.NBU_CLIENT.MAXJOBS.erpdb1
2017/12/6 2:10:02 - requesting resource dbbackup.NBU_POLICY.MAXJOBS.dbbackup
2017/12/6 2:10:02 - granted resource dbbackup.NBU_CLIENT.MAXJOBS.erpdb1
2017/12/6 2:10:02 - granted resource dbbackup.NBU_POLICY.MAXJOBS.dbbackup
2017/12/6 2:10:02 - granted resource dbbackup-hcart2-robot-tld-0
2017/12/6 2:10:03 - estimated 0 Kbytes needed
2017/12/6 2:10:03 - Info nbjm(pid=8056) started backup (backupid=erpdb1_1512497402) job for client erpdb1, policy dbbackup, schedule Full on storage unit dbbackup-hcart2-robot-tld-0
2017/12/6 2:10:03 - started process bpbrm (5200)
2017/12/6 2:10:04 - Error bpbrm(pid=5200) bpcd on erpdb1 exited with status 23: socket read failed
2017/12/6 2:10:04 - Error bpbrm(pid=5200) cannot send mail because BPCD on erpdb1 exited with status 23: socket read failed
2017/12/6 2:10:04 - end writing
socket read failed(23)