If you have enough scratch tapes, you could consider colocation by
filespace, then divide the filespaces roughly by size into 8 groups (or
however many tape drives you want to assign) and start 8 restores.  They
would be guaranteed to be on separate tapes becuase of the collocation.

On Wed, 23 Jun 2004, MC Matt Cooper (2838) wrote:

> Hello all,
>        I received no responses from my previous post    'Need your
> thoughts on best RESTORE approach'.  So with just my own research I have
> found that TSM does NOT have anything to manage a multi-filespace,
> multi-session restore that is not relying on the user to prevent 2
> sessions asking for the same tape.  (please tell me I am wrong)
>      ( reference the section in the (AIX) client book on LARGE RESTORES,
> NO QUERY,  it is set up for a single filespace (NO WILDCARDS)
> In my case I will have 60+ filesspaces on 6+ tapes with 8 tape drives
> available and have to start from the command line (actually scripted) to
> start a session for each tape drive.  The real problem is preventing
> more than 1 session from asking for the same tape.  I believe I can find
> the necessary information to write the script from quering the
> volumeusage  and volume tables and doing the restore comands from there.
> I would guess I am not the first one to approach this problem and hate
> to spend my time trying to script this when someone else, (who is most
> likely much better at scripting than me) has already done it.
>
> Does anyone have a script that will arrange/control the submission of
> multiple restore sessions to avoid having sessions having to wait for
> other sessions to finish using a tape?
>
>
> Thanks in advance
> Matt
>
>