I have a recommendation that striping has little effect because "the server
I/Os are random and read / writes occur in small increments (4-6Kb I/Os)." 

This was an ADSM and not a TSM recomendation.

Personally I hate striping as it's so hard to manage the disks when you want
to move stuff around.

Mit freundlichen Grüßen - With best regards
Serdeczne pozdrowienia - Slan agus beannacht
Paul Baines
TSM/ADSM Consultant