On Sun, 11 Feb 2007 13:34:13 +1000, Shane <[EMAIL PROTECTED]> wrote:

>On Sat, 2007-02-10 at 20:28 -0600, Mark Zelden wrote:
>
>> >I couldn't find a place with a recommendation for HFS allocation. So I'd
>> >like to hear your opinions about it. Do you prefer SMS or non-SMS? Why?
>>
>> Non-SMS.  Then you can treat it just like and other sysres data set
>> and indirectly catalog it - whether it's on the primary sysres volume
>> or a secondary (or tirtiary) volume.
>>
>> But I wouldn't want to SMS control any "sysres" data sets.  This was
>> one of the driving factors for supporting non-SMS PDSE and HFS when
>> that support came out (OS/390 2.6 and above + PTFs and native in
>> OS/390 2.10 IIRC).
>
>Normally Mark and I are pretty much on the same wavelength. Here we
>diverge a little.
>PDSE targets on the res - no question.
>HFSs I allocate on an SMS pool - too many problems in the past with VSAM
>on the res, so I started with HFS on SMS, and left it there.
>Getting too damn big nowadays anyway.
>

Big and getting bigger.  For z/OS 1.6 I still had my root and Tivoli
(TSM) HFS on our mod-9 sysres until I installed XML toolkit.  I think
that almost doubled the size of the root so I had to finally bite 
the bullet and create a secondary IBM sysres.  Now with z/OS 1.8
I have a root HFS, the Tivoli (TSM) HFS, the XML HFS and new HFSes
for PLI, COBOL, and Netview.    It works out quite nice having the 
secondary sysres dedicated to HFS files.  If you aren't in a shared
HFS environment you can indirectly catalog them too. 

Mark
--
Mark Zelden
Sr. Software and Systems Architect - z/OS Team Lead
Zurich North America / Farmers Insurance Group:  G-ITO
mailto:[EMAIL PROTECTED]
z/OS and OS390 expert at http://searchDataCenter.com/ateExperts/
Systems Programming expert at http://expertanswercenter.techtarget.com/
Mark's MVS Utilities: http://home.flash.net/~mzelden/mvsutil.html

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