Problem with Whole Database Online+Redo log Backup

Question

Dear Marcus Sir,
I am facing while taking "Whole Database Online+Redo log Backup" through DB13 T-Code.
Below is the "Problem part of the Backup log", however if you need I will send you full log.
Hope you will find out problem soon
#FILE..... /oracle/ANP/sapdata2/sr3_8/sr3.data8
#SAVED.... sr3.data8  ANPB260810/12
BR0280I BRBACKUP time stamp: 2010-08-27 11.03.22
BR0063I 9 of 51 files processed - 19400.070 MB of 135986.469 MB done
BR0204I Percentage done: 14.27%, estimated end time: 11:47
BR0001I *******___________________________________________
BR0202I Saving /oracle/ANP/sapdata2/sr3_9/sr3.data9
BR0203I to /dev/rmt0.1 ...
BR0278E Command output of 'LANG=C dd obs=1024K bs=1024K if=/oracle/ANP/sapdata2/sr3_9/sr3.data9 of=/dev/rmt0.1':
dd read error: I/O error
462+0 records in
462+0 records out
BR0280I BRBACKUP time stamp: 2010-08-27 11.03.36
BR0279E Return code from 'LANG=C dd obs=1024K bs=1024K if=/oracle/ANP/sapdata2/sr3_9/sr3.data9 of=/dev/rmt0.1': 2
BR0222E Copying /oracle/ANP/sapdata2/sr3_9/sr3.data9 to/from /dev/rmt0.1 failed due to previous errors
BR0280I BRBACKUP time stamp: 2010-08-27 11.03.41
BR0317I 'Alter tablespace PSAPSR3 end backup' successful
BR0056I End of database backup: bedziydp.ant 2010-08-27 11.03.36
BR0280I BRBACKUP time stamp: 2010-08-27 11.03.41
BR0054I BRBACKUP terminated with errors
Warm Regards
Ahsan

Answer 1

Hi,
since you are getting a read error, it might as well be, that your datafile is defective.
Try the same dd-command to /dev/null, to see if it is possible to read the entire file.
First make sure that your null-device is existing, otherwise you might face a root-fs full problem.
dd obs=1024K bs=1024K if=/oracle/ANP/sapdata2/sr3_9/sr3.data9 of=/dev/null
or try a dbverify on it, which would also read the entire file and do a checksum test.
brbackup -c -u / -m /oracle/ANP/sapdata2/sr3_9/sr3.data9 -t online -w only_dbv
Good luck
Volker