On thinking about this some more, I'm not sure I can do this. My OMVS HLQ is in 
the NOT-shared Master catalogs for each LPAR. I know I can have SYS1 and PAGE 
successfully defined in multiple catalogs. But, not anything else. The 
catalog/VVDS relationship will be broke in the other Lpars.



> -----Original Message-----
> From: IBM Mainframe Discussion List [mailto:[email protected]]
> On Behalf Of Gibney, David Allen,Jr
> Sent: Thursday, January 14, 2016 11:56 AM
> To: [email protected]
> Subject: Re: z/OS 2.1 and FONTS; Moving from z/OS 1.13
> 
> 
> 
> > -----Original Message-----
> > From: IBM Mainframe Discussion List [mailto:IBM-
> [email protected]]
> > On Behalf Of Elardus Engelbrecht
> > Sent: Wednesday, January 13, 2016 9:40 PM
> > To: [email protected]
> > Subject: Re: z/OS 2.1 and FONTS; Moving from z/OS 1.13
> >
> > Gibney, David Allen,Jr wrote:
> >
> > >   I have a small shop, 4 monoplex LPARs, no GRS. Very careful
> > > sharing of a
> > limited set of disks including the system resident (IPL) volume, a
> > Mod-27. Up until now, I have made separate (R/O) copies of the ROOT
> > and other system
> > ZFS/HFS(s) for each LPARs.
> > >   This new Unix filesystem with FONTS is not small and I am
> > > wondering if it
> > is  safe to have only one (R/O) copy of it (probably on the IPL
> > volume), shared by two or more LPARs?
> >
> > That's possible (sharing of IPL volser) as long all those LPARS are on
> > the same z/OS level.
> 
> I have been sharing the traditional RESVOL since at least z/OS 1.7
> 
> >
> > >   My SMP/E points to an entirely separate target Mod 27 and set of
> > > OMVS
> > files. These are cloned after maintenance to alternating IPL and
> > maintenance level OMVS files.
> >
> > What is your catalog setup? Do you have separate master catalogs and
> > their own set of user catalogs? Or are you sharing your catalogs?
> >
> 
> Mostly LPAR specific catalog systems. My two sandboxes share several
> USERCATS.
> OMVS HLQ is in the unshared Master(s)  Which could complicate things :)
> 
> 
> > I believe it is safe to share a Read Only OMVS dataset, unless you
> > have something to prevent sharing of such OMVS datasets, for example
> > having a folder which is written to.
> 
> I am figuring on mounting them R/O.
> 
> >
> > Of course, moving from z/OS v1.13 to 2.1 requires two different IPL
> > volsers during rolling upgrades.
> 
> All independent monoplexes, but yes new IPL volumes for the new 2.1 system.
> No real co-existence, just need to insure viable fallback. Never been able to
> justify the CPU resources for even basic Sysplex. And never really had the
> need. We have multiple Lpars to isolate production from development from
> sandbox work.
> 
> Part of my concern is that I only have 16 M27 defined. (user to make do with
> 12 M9 before our last DASD upgrade). I'm running short until I complete the
> migrations
> 
> >
> > Groete / Greetings
> > Elardus Engelbrecht
> >
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> > email to [email protected] with the message: INFO IBM-MAIN
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