> -----Original Message-----
> From: IBM Mainframe Discussion List
> [mailto:ibm-m...@bama.ua.edu] On Behalf Of Jerry Whitteridge
> Sent: Monday, January 04, 2010 12:21 PM
> To: IBM-MAIN@bama.ua.edu
> Subject: Re: hfs VS zfs
>
> > -----Original Message-----
> > From: IBM Mainframe Discussion List
> > [mailto:ibm-m...@bama.ua.edu] On Behalf Of Ward, Mike S
> > Sent: Monday, January 04, 2010 8:41 AM
> > To: IBM-MAIN@bama.ua.edu
> > Subject: hfs VS zfs
> >
> > Hello all, we are planning to migrate from z/os 1.7 to 1.11.
> > In our planning we are trying to decide if we want to go to
> > zfs instead of the hfs. Is there anyone out there that can
> > think of any good reasons not to go to zfs when we do our upgrade?
>
> Most noticeable issue will be if you use indirect cataloging
> of the systems HFS files (for example locating them on the
> system res packs set). This is not available for zFS at this
> time. Due to this we have a mix of zFS and HFS files. SMPE
> owned and maintained files are HFS and roll with the system
> res vols. User and Application files are zFS
>
I cheat. I never do a DASD copy of my DASD. I do a logical DSN copy from DASD
to DASD, and I change some of the names as they are copies. What I do it make
my "system" UNIX files have the system name and res volume in the DSN.
OMVS.&SYSNAME..&SYSR1..ROOT
for example. That way, I don't need indirect cataloging. in BPXPRMnn
ROOT FILESYSTEM('OMVS.&SYSNAME..&SYSR1..ROOT')
TYPE(ZFS) MODE(RDWR)
The same with some PARMLIBs, which I put as the __first__ PARMLIB in the
concatenation. Like: SYS1.&SYSNAME..PARMLIB. Ditto for special LPALIBs and
LINKLIBs. Which, again, I put __first__ so that modules in them override the
IBM modules of the same name. Things like ICEAMn.
--
John McKown
Systems Engineer IV
IT
Administrative Services Group
HealthMarkets(r)
9151 Boulevard 26 * N. Richland Hills * TX 76010
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