David -

We let the library decide what cart goes where - we have roughly 4500 tapes
in our TSM environment (on-site and off-site), the majority of which (~2/3)
are K's.  We had originally planned to phase the J's out as K's came in -
but that was postponed (permanently) when we started running out of tape
space a while ago (due to a lack of expiration, which has since been
resolved).  We've looked at trying to segregate the tapes, but have never
been able to quantify a benefit that would make the time invested
worthwhile.  If I was starting from scratch (or dealing with a smaller
environment), I would probably try to organize it a little more logically
(if it is possible) - you could probably make a case for efficient tape
allocation based on your specific setup.

Matt





deehre01 AT LOUISVILLE DOT [email protected] on 04/08/2002 02:09:44 PM

Please respond to ADSM-L AT VM.MARIST DOT EDU

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To:    ADSM-L AT VM.MARIST DOT EDU
cc:
Subject:    3590s in a Aix environment


How have folks in an Aix environment handled a 3494 library with 3590
drives and a mixure of J and K (standard and extended length) carts?  Do
you try to control which storage pool goes to which length cart or do
you just let the library randomly pick?  If you control, how do you
control which carts get assigned to which pool?

David