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 [EMAIL PROTECTED]@VM.MARIST.EDU on 04/08/2002 02:09:44 PM Please respond to [EMAIL PROTECTED] Sent by: [EMAIL PROTECTED] To: [EMAIL PROTECTED] 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