On Fri, 27 Jan 1995 17:06:31 CST Keith A. Crabb said:
>I was one of a few on this list who decided to change to collation and
>gave up after a few dozen of the probably several thousands of tape
>mounts required were done.

Keith;  I use collocation on our ADSM/6000, LAGO Datawheel, server.  It
works great.  You do have to be careful about not setting LOMIG too low.
We set ours to 30%.  The lower you set it, the more tape mounts you will
have when doing migrations.  I believe ADSM picks the largest filespaces
to migrate first, and the smallest last.  I didn't read this anywhere, but
I seem to recall seeing it on this list at some point.
We have about 120+ clients.

I know there is a difference between 3480/90 tapes and 8mm tapes, and this
will have an effect on collocation.  Whereas I only have a few dozen tapes
in my robot, you probably have far more to deal with for the same amount of
data, and this will mean that you'll have more tape mounts than I will.  On
the other hand, your reclaim processes won't take hours like mine do!

..Paul