Catalog backup error : file read failed (13)

Hi We encounter this error on catalog backup.

04/02/2019 12:05:38 - Info nbjm (pid=7192) starting backup job (jobid=1020423) for client bdowcbs07, policy BDOWCBS07_Catalog, schedule full
04/02/2019 12:05:38 - Info nbjm (pid=7192) requesting STANDARD_RESOURCE resources from RB for backup job (jobid=1020423, request id:{FEB847B1-9502-4A9B-8D25-C9D8C33DE72D})
04/02/2019 12:05:38 - requesting resource bdowcbs10_stu
04/02/2019 12:05:38 - requesting resource bdowcbs07.NBU_CLIENT.MAXJOBS.bdowcbs07
04/02/2019 12:05:38 - requesting resource bdowcbs07.NBU_POLICY.MAXJOBS.BDOWCBS07_Catalog
04/02/2019 12:05:38 - granted resource bdowcbs07.NBU_CLIENT.MAXJOBS.bdowcbs07
04/02/2019 12:05:38 - granted resource bdowcbs07.NBU_POLICY.MAXJOBS.BDOWCBS07_Catalog
04/02/2019 12:05:38 - granted resource MediaID=@aaaaf; DiskVolume=PureDiskVolume; DiskPool=bdowcbs10_dp;Path=PureDiskVolume;StorageServer=bdowcbs10;MediaServer=bdowcbs10
04/02/2019 12:05:38 - granted resource bdowcbs10_stu
04/02/2019 12:05:39 - estimated 0 kbytes needed
04/02/2019 12:05:39 - Info nbjm (pid=7192) started backup (backupid=bdowcbs07_1554177938) job for client bdowcbs07, policy BDOWCBS07_Catalog, schedule full on storage unit bdowcbs10_stu
04/02/2019 12:05:41 - Info bpbrm (pid=14268) bdowcbs07 is the host to backup data from
04/02/2019 12:05:41 - Info bpbrm (pid=14268) reading file list for client 04/02/2019 12:05:41 - started process bpbrm (pid=14268)
04/02/2019 12:05:41 - connecting
04/02/2019 12:05:42 - Info bpbrm (pid=14268) starting bpbkar32 on client
04/02/2019 12:05:43 - Info bpbkar32 (pid=18980) Backup started
04/02/2019 12:05:43 - Info bpbkar32 (pid=18980) change time comparison:
04/02/2019 12:05:43 - Info bpbkar32 (pid=18980) archive bit processing:
04/02/2019 12:05:43 - Info bptm (pid=7568) start
04/02/2019 12:05:43 - Info bptm (pid=7568) using 262144 data buffer size
04/02/2019 12:05:43 - Info bptm (pid=7568) setting receive network buffer to 1049600 bytes
04/02/2019 12:05:43 - Info bptm (pid=7568) using 30 data buffers
04/02/2019 12:05:43 - connected; connect time: 0:00:00
04/02/2019 12:06:01 - Info bptm (pid=7568) start backup
04/02/2019 12:06:39 - Info bptm (pid=7568) backup child process is pid 13768.9404 04/02/2019 12:06:39 - Info bptm (pid=13768) start
04/02/2019 12:06:40 - begin writing 04/02/2019 14:33:02 - Info bptm (pid=7568) waited for full buffer 406313 times, delayed 460543 times
04/02/2019 14:34:07 - Info bptm (pid=7568) EXITING with status 0 <----------
04/02/2019 14:34:07 - Info bdowcbs10 (pid=7568) StorageServer=PureDisk:bdowcbs10; Report=PDDO Stats (multi-threaded stream used) for (bdowcbs10): scanned: 512850764 KB, CR sent: 1153015 KB, CR sent over FC: 0 KB, dedup: 99.8%, cache hits: 1451 (0.3%)
04/02/2019 14:34:07 - Info bpbrm (pid=14268) validating image for client bdowcbs07
04/02/2019 14:34:08 - Error bpbrm (pid=14268) db_IMAGE failed: file read failed (13)
04/02/2019 14:34:09 - Info bpbkar32 (pid=18980) done. status: 13: file read failed
04/02/2019 14:34:09 - end writing; write time: 2:27:29 file read failed (13)