According to the client manual return code 12 means:

The operation completed with at least one error message (except for
error messages for skipped files). For scheduled events, the status will
be Failed. Review the dsmerror.log file (and dsmsched.log file for
scheduled events) to determine what error messages were issued and to
assess their impact on the operation. As a general rule, this return
code means that the error was severe enough to prevent the successful
completion of the operation. For example, an error that prevents an
entire file system from being processed yields return code 12. When a
file is not found the operation yields return code 12.

Alexander

On Tue, 2008-01-22 at 16:29 +0100, Hari, Krishnaprasath wrote:
> Guys
> Any idea about the RC=12 and why backup shows has failed due to this
>
> 01/21/2008 18:51:46 --- SCHEDULEREC STATUS BEGIN
> 01/21/2008 18:51:46 Total number of objects inspected:   28,844
> 01/21/2008 18:51:46 Total number of objects backed up:      150
> 01/21/2008 18:51:46 Total number of objects updated:          0
> 01/21/2008 18:51:46 Total number of objects rebound:          0
> 01/21/2008 18:51:46 Total number of objects deleted:          0
> 01/21/2008 18:51:46 Total number of objects expired:         30
> 01/21/2008 18:51:46 Total number of objects failed:          13
> 01/21/2008 18:51:46 Total number of subfile objects:          0
> 01/21/2008 18:51:46 Total number of bytes transferred:    176.91 MB
> 01/21/2008 18:51:46 Data transfer time:                    8.88 sec
> 01/21/2008 18:51:46 Network data transfer rate:        20,382.13 KB/sec
> 01/21/2008 18:51:46 Aggregate data transfer rate:      1,514.54 KB/sec
> 01/21/2008 18:51:46 Objects compressed by:                    0%
> 01/21/2008 18:51:46 Subfile objects reduced by:               0%
> 01/21/2008 18:51:46 Elapsed processing time:           00:01:59
> 01/21/2008 18:51:46 --- SCHEDULEREC STATUS END
> 01/21/2008 18:51:46 --- SCHEDULEREC OBJECT END 1ST_NT_OFFSITE 01/21/2008 
> 18:00:00
> 01/21/2008 18:51:46 ANS1512E Scheduled event '1ST_NT_OFFSITE' failed.  Return 
> code = 12.
> 01/21/2008 18:51:46 Sending results for scheduled event '1ST_NT_OFFSITE'.