Yes 3590 is generic rather than an esoteric that you can define at your site.
If you are just referring to the data set with DISP=OLD or DISP=MOD, and not specifying "UNIT=", the system will assign the output device based on the catalog entry. This was helpful when my previous site converted from 3420 to 3480 because we had created our tapes with UNIT=TAPE and when we converted to 3480, we just changed the definition of the TAPE esoteric to be assigned to 3480 devices. New volumes were mounterd on the 3480 and cataloged to 3480 D/T. The volumes that were previously created with UNIT=TAPE on 3420s were mounted based on the catalog information, so the conversion mostly happened via attrition. If your JCL is specifying the generic name, and you have an allocation management product, you could probably override the device type with that product. If you don't have that kind of product, IBM gives you a chance to update the generic https://www.ibm.com/support/knowledgecenter/SSLTBW_2.3.0/com.ibm.zos.v2r3.ieag600/genupd.htm Bob Longabaugh CA Technologies, A Broadcom Company Storage Management On Wed, Nov 21, 2018 at 2:38 PM Seymour J Metz <[email protected]> wrote: > Isn't 3590 a generic? > > > -- > Shmuel (Seymour J.) Metz > http://mason.gmu.edu/~smetz3 > > ________________________________________ > From: IBM Mainframe Discussion List <[email protected]> on behalf > of Tony Thigpen <[email protected]> > Sent: Wednesday, November 21, 2018 7:59 AM > To: [email protected] > Subject: OS/390 (not z/OS) question > > In an OS/390 2.10 system. where is the esoteric 3590-1 defined? Can it > be overridden? > > We are trying to migrate an old OS/390 system and the first stage is to > migrate the tape usage to a VTL. The VTL looks like 3590-128trk while > the old 3590s are 3590-256trak. > > The problem is that when an input request for old tapes appear, the > system is asking for the real 3590-256track tape to be mounted on the > VTL drives (defined as 3590-128track). RMM is the tape manager. We think > the system defined 3590-1 esoteric is the problem, but it does not > settable in the HCD on that version of OS/390. > > -- > Tony Thigpen > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN > ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
