On Tue, 6 May 2008 09:07:07 -0500, Andy Robertson
<[EMAIL PROTECTED]> wrote:

>Hi
>
>Just starting to plan the 1.7-> 1.8 z/OS upgrade
>
>We have a four-system sysplex and intent to go to 1.8 by doing a rolling
>update over a week.  Ie there will be about a week with some systems running
>z/OS 1.8 and some running z/OS 1.7
>
>One thing I can't seem to find unambiguous information about is the update
>path for the RACF database, ((which is shared by all systems in the plex))
>
>At the moment we plan to do the following:
>
>a) ON a 1.7 SYSTEM  run IRRMIN00 UPDATE at level 1.8 (ie with the service
>pack library STEPLIBed) against the 1.7 primary database.
>
>b) ON a 1.7 SYSTEM  run IRRMIN00 UPDATE at level 1.8 (ie with the service
>pack library STEPLIBed) against the 1.7 secondary database.
>
>c) Run for a few days
>
>d) IPL some systems from the 1.8 residence pack
>
>e) Run for a few more days doing other testing
>
>f)  Ipl all systems from the 1.8 residence pack
>
>
>
>Is this safe?  Will the 1.7 systems tolerate the 1.8 templates in the
>database?  Or should we go the other way and do the upgrade after we IPL to
>1.8?
>

That will be fine.  As an alternative, you can now IPL from 1.8 and if the
correct templates aren't there, temporary ones will be used.  After you have
done some initial testing you can run IRRMIN00 UPDATE from a 1.8
system without the STEPLIB.  I think this has been true since 1.6.

Mark
--
Mark Zelden
Sr. Software and Systems Architect - z/OS Team Lead
Zurich North America / Farmers Insurance Group - ZFUS G-ITO
mailto:[EMAIL PROTECTED]
z/OS Systems Programming expert at http://expertanswercenter.techtarget.com/
Mark's MVS Utilities: http://home.flash.net/~mzelden/mvsutil.html

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