Presuming you are recent enough to have SMS, catalogs should not be a problem. z/OS 1.11 should support all of the 1.8 and below structure(s).
In short, IBM's position is that things will not inter-operate more than n-2 levels apart. This forces you into a "cold turkey" migration. Discard everything old, and start with the new. AFAIK, there are workaround for all of the known issues. The issue is cost. Since you have to go "cold turkey", a lot of things will have to be duplicated, that could formerly be used. This will cost more DASD,... IIRC Brian Westerman on this list has significant experience in this area. Hopefully he will chime in.. HTH, Comments interspersed: >I know several of you on here have migrated from unsupported levels of one >z/OS to a supported level, but in reading the planning guide I see: >If you are migrating to z/OS V1R11 from z/OS V1R8 or earlier, you are >migrating >from a release that is no longer supported for migration. Contact your IBM >representative to find out what alternatives are available >I know this is IBM talk for pay us and we will do it, but I'd really like to >try it myself. >We are a vanilla shop so there are not real gotcha here, we are a monoplex >and we do run quite a bite of 3rd party software, which will be upgraded >first. The third party software *may* be an issue. Check with you vendors for release level comnpatability. You may have to go "step wise" with 2 third party migrations to get from here to there. >Tell me if I am wrong, but my BIG concern are the catalogs, if they get >buggered up then I am in trouble. What I am thinking about doing is create a >second set of catalogs, with nothing updating them, >and connecting those to test with. If that works then disconnect those and >connect the real catalogs. I concur with your caution. This is one of those things that will (at least temporarily) be duplicated. >From the way it looks I don't think I can order any toleration ptfs or >coexistence ptfs as again we are unsupported. I have just begun to read the >planning guide but am put off by the above statement. Because of the situation, I would order/install (if you can) all of the toleration PTF's for the lower level system that you can. By this time they are well aged and should not present any issues. Check the MIIGRATION books for the interim levels. This will make you as safe as possible Remainder snipped ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
