-----Nick Laflamme wrote: ----- >Can anyone refer me to the parameters options for partitioning a >3494 ATL? It's easy to find that a 3494 can support two VTS >partitions; I'm questioning how we add TSM on AIX to the existing >z/OS non-VTS use and a VTS partition for z/OS. > >We have new 3592s to coexist with the z/OS's 3590s, so there's no >question of sharing drives or volumes. I simply can't verify that >we can set up a another partition for this new image. > >I have a copy of SG24-4409, the Redbook on partitioning 3494s. It >doesn't address the question and, worse, it hasn't been updated >in a decade. > >(I miss the 3584s I used at former sites. Sniff.) (Then again, >someone said a single 3584-L23 is about $300,000, so I guess I >understand why they didn't go that route right away.)
We have a 3494 shared between a VTS used by z/OS, a group of native tape drives used by z/OS, and a TSM server with two types of tape drives. Our experience matches that of other respondants; a new 'partition' is really just a pair of previously unused category numbers. We did have a little trouble with z/OS when we first migrated TSM from z/OS to its current host (mainframe Linux). The z/OS system has an exit routine that is called when a volume is inserted into the 3494. The return code from the exit tells z/OS whether to assign one of its own category codes to the volume. We had to update the exit routine to get z/OS to stop grabbing TSM volumes before TSM tried to check them in.
