We use symbolic links extensively for this purpose. In the configuration files 
for each platform we put a path statement with the platform name in it:
/CICS/platform1
/CICS/platform2

We create a directory /CICS/ 
Then we create symbolic links in that directory for each platform that points 
to the CICS release to use for that platform
/CICS/platform1 >> /CICSVxRy
/CICS/platform2 >> /CICSVqRz

We mount the zFSes for each release on a different directory

/CICSVxRy  has CICS.VxRy.ZFS
/CICSVqRz has CICS.VqRz.ZFS

When we want to change the release we only have to change the directory that 
the symbolic link points to.

If you want to discuss you can contact me off list.
Thanks,
Jon 



-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of 
McKown, John
Sent: Thursday, October 27, 2011 8:24 AM
To: [email protected]
Subject: Re: HFS sharing and rolling product upgrades

> -----Original Message-----
> From: IBM Mainframe Discussion List
> [mailto:[email protected]] On Behalf Of Nofar Spalter
> Sent: Thursday, October 27, 2011 3:19 AM
> To: [email protected]
> Subject: HFS sharing and rolling product upgrades
> 
> Hello,
> How do you gradually roll changes to CICS, MQ and DB2 versions that 
> change these products' HFS dataset one system at a time?
> We currently share our BPXPRMxx member between two LPARs running in 
> Sysplex with SYSPLEX(YES).
> Our CICS guys want to upgrade the CICS version one LPAR at a time (a 
> reasonable request), and that means that they want to change the CICS 
> HFS pointed to by the
> /usr/lpp/cicsts/cicsts32 mount point, but only on one system.
> In other words they want to do something like this:
> 
> BPXPRMxx:
> MOUNT FILESYSTEM('OMVS.&CICSVER.CICS32')  
>       MOUNTPOINT('/usr/lpp/cicsts/cicsts32')   
>       TYPE(HFS)  MODE(READ) AUTOMOVE(INCLUDE,*)
> 
> Where &CICSVER resolves to RSU1109 on SY1 LPAR and to RSU1110 on SY2 
> LPAR.
> 
> I don't think this is possible, but I do want to provide them the 
> option to roll the change one LPAR at a time, prefferably without 
> making changes to CICS.
> 
> Is there a way where we can support that?
> 
> Regards,
> Nofar Spalter

Have you looked at & considered: "Mounting file systems using symbolic links"?

http://publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/BOOKS/bpxzb2b0/7.14

The commands to use would be something like:

cd /usr/lpp/cicsts
mkdir RSU1109
mkdir RSU1101
ln -s '$SYSSYMR/&CICSVER' cicsts32


Now, I don't use UNIX sysplex filesystem sharing, but I think you could do a 
mount similar to:

 MOUNT FILESYSTEM('OMVS.&CICSVER.CICS32')  
       MOUNTPOINT('/usr/lpp/cicsts/&CICSVER.')   
       TYPE(HFS)  MODE(READ) AUTOMOVE(INCLUDE,*)

Question: Is a period missing? Wouldn't you need 'OMVS.&CICSVER..CICS32'  ??? 
Or was it a typo on your part?

--
John McKown
Systems Engineer IV
IT

Administrative Services Group

HealthMarkets(r)

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