There is an error when i backup the files using san client.

2013-7-18 20:27:29 - Info nbjm (pid=10869) starting backup job (jobid=14448) for client ocrdb.localdomain, policy ocr_img, schedule Full_Backup
2013-7-18 20:27:29 - Info nbjm (pid=10869) requesting STANDARD_RESOURCE resources from RB for backup job (jobid=14448, request id:{69E87DA2-EFA5-11E2-97D4-348B6072FE46})
2013-7-18 20:27:29 - requesting resource stu_msdp_nbu5220
2013-7-18 20:27:29 - requesting resource nbu5220.NBU_CLIENT.MAXJOBS.ocrdb.localdomain
2013-7-18 20:27:29 - requesting resource nbu5220.NBU_POLICY.MAXJOBS.ocr_img
2013-7-18 20:27:30 - Info bpbrm (pid=23688) ocrdb.localdomain is the host to backup data from
2013-7-18 20:27:30 - Info bpbrm (pid=23688) reading file list from client
2013-7-18 20:27:30 - granted resource  nbu5220.NBU_CLIENT.MAXJOBS.ocrdb.localdomain
2013-7-18 20:27:30 - granted resource  nbu5220.NBU_POLICY.MAXJOBS.ocr_img
2013-7-18 20:27:30 - granted resource  MediaID=@aaaab;DiskVolume=PureDiskVolume;DiskPool=dp_disk_nbu5220;Path=PureDiskVolume;StorageServer=nbu5220;MediaServer=nbu5220
2013-7-18 20:27:30 - granted resource  stu_msdp_nbu5220
2013-7-18 20:27:30 - granted resource  TRANSPORT
2013-7-18 20:27:30 - estimated 0 kbytes needed
2013-7-18 20:27:30 - Info nbjm (pid=10869) started backup (backupid=ocrdb.localdomain_1374150450) job for client ocrdb.localdomain, policy ocr_img, schedule Full_Backup on storage unit stu_msdp_nbu5220
2013-7-18 20:27:30 - started process bpbrm (pid=23688)
2013-7-18 20:27:30 - Info bpbrm (pid=23688) accelerator enabled
2013-7-18 20:27:31 - Info bpbrm (pid=23688) There is no complete backup image match with track journal, a regular full backup will be performed.
2013-7-18 20:27:31 - Info bpbrm (pid=23688) starting bpbkar on client
2013-7-18 20:27:31 - Info bpbkar (pid=7766) Backup started
2013-7-18 20:27:31 - Info bpbrm (pid=23688) bptm pid: 23694
2013-7-18 20:27:31 - connecting
2013-7-18 20:27:31 - connected; connect time: 0:00:00
2013-7-18 20:27:32 - Info bptm (pid=23694) start
2013-7-18 20:27:32 - Info bptm (pid=23694) using 262144 data buffer size
2013-7-18 20:27:32 - Info bptm (pid=23694) using 32 data buffers
2013-7-18 20:27:32 - Info bptm (pid=23694) USING 262144 data buffer size for FT
2013-7-18 20:27:32 - Info bptm (pid=23694) start backup
2013-7-18 20:27:32 - Opening Fibre Transport connection, Backup Id: ocrdb.localdomain_1374150450
2013-7-18 20:27:33 - begin writing
2013-7-18 20:27:49 - Error bpbrm (pid=23688) from client ocrdb.localdomain: ERR - bpbkar exiting because backup is aborting
2013-7-18 20:27:49 - Critical bptm (pid=23694) data buffers out of sequence, expected number 2447, received 2450
2013-7-18 20:28:10 - Info bptm (pid=23694) EXITING with status 174 <----------
2013-7-18 20:28:10 - Info nbu5220 (pid=23694) StorageServer=PureDisk:nbu5220; Report=PDDO Stats for (nbu5220): scanned: 625831 KB, CR sent: 60 KB, CR sent over FC: 0 KB, dedup: 100.0%
2013-7-18 20:28:10 - Info bpbkar (pid=7766) done. status: 174: media manager - system error occurred
2013-7-18 20:28:10 - end writing; write time: 0:00:37
termination requested by administrator  (150)