...and did we not go from 32 bit to 64 bit addressing with 1.7...
-----Original Message----- From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of Staller, Allan Sent: Friday, May 07, 2010 10:36 AM To: [email protected] Subject: Re: Migrating from z/OS V1.4 to z/OS V1.11 With proper planning and execution, there should be no more issues w/z/OS1.4 to z/OS 1.11 than any other OS upgrade, however there are so many changes in the interim (approx 6 years worth), some of which may not be compatible w/each other, that it would be a very good thing to peruse the migration manuals in detail for each interim release. (1.4-1.5, 1.5-1.6,....). At least after a detailed perusal of the migration manuals, you will know where the land mines are. The same process also needs to be done for the ISV products (version upgrade/compatibility check). I would suggest beginning this process now, as it will probably take longer that the z/OS upgrade. My observation has been that when the O/S is not upgraded regularly, neither are the ISV products. There are also more likely to be can't get to here from there issues. The real issues are: 1) how do I cut over from old (z/OS 1.4/ISV) to new(z/OS 1.11/ISV)? 2) I it fails miserably, how do I go back? HTH, <<SNIP>> I have to update all of my software no matter what route I take. We just thought if we could do the operating system 1 time, instead of 3 it would take us less time. Am I asking for more problems this way? Read *ALL* of the migration guide's VERY VERY carefully!! That is a big jump and you *may* have a lot of work to do on your existing system to get everything ready for this. Some of that work may have to be done at conversion time. Good Luck! <snip> I am running z/OS 1.4 and think of just jumping to z/OS 1.11, if they finally let me upgrade the software. I was wondering if anyone out there thinks this is a real bad idea. I can isolate a test Lpar and DASD volumes to do this. I would like some feed back on this idea. </snip> <</SNIP>> ---------------------------------------------------------------------- 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 ---------------------------------------------------------------------- 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 ---------------------------------------------------------------------- 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 ---------------------------------------------------------------------- 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
