> I have some questions about backup verification and would like to seek some
> advice.
>
> When I backup using TSM, how can I verify that the backup is good ?  What I
> mean is when TSM write to tape, how do I verify that the write-to-tape
> process is good.  I come from VMS backup.  In VMS, it has a command: BACKUP
> /VERIFY, which will write the file to tape, rewind the tape and read the
> backup file.  This will ensure that the file I wrote to the tape is good.
> The disadvantage is backup time is much longer.   How does TSM do backup
> verification ?  By checksum, by rewind and read ?  Is it possible to
> specifiy the verification method ?

I am not aware of any TSM facility for this kind of verification, but some
of the tape drives supported by TSM do read after write checking within
the drive. In particular, the IBM 3590 does this kind of checking.