Ian, with todays tsm each tape would be mounted sequentially.  With
tomorrows tsm each tape could be mounted in parallel if you have enough
drives.  This is a feature in tsm 5.1, due out very soon, on 4/9/02 is what I 
have
heard.

At 04:33 PM 3/20/2002 +0000, you wrote:
>hi
>
>Does anybody know the answer to this:
>
>If you perform a full restore for a very large tsm client and that clients
>data spans several tape media (say 4 volumes, even with collocation on)
>would tsm try and mount all 4 volumes to 4 tape drives and then run the
>restore or would it call the 4 volumes sequentially to 1 tape drive as and
>when
>until the restore is complete?
>
>I'm doing a DR exercise and am trying to workout how many simultaneous
>client restores I could do with 4 tape drives.
>
>Any help would be appreciated.
>
>Thanks

----------
Bill Colwell
Bill Colwell
C. S. Draper Lab
Cambridge Ma.