On Jul 22, 2008, at 11:59 AM, David Longo wrote:

APAR says that it has to scan entire storage pool vol to see
if it matches what is needed.  This sounds like a design flaw
to me.  The TSM DB has what is where and whether active
or not, why not just use that?  That is what is done when a
restore is done, right?

Many are the factors involved.  In general, the more vague the
request, the longer it's going to take.  Consider real experiences
with NQR vs. Classic restorals.

Since you're using LTO, there's another potential, ugly factor: see
IBM Technote 1209563.  Gotta love tape.

    Richard Sims