On Fri, 2004-07-30 at 16:04, David Boyes wrote:
> > Read z/OS datasets directly? <delicate cough>  Use caution.
> > It certain environments it creates [...] possible data
> > integrity issues.
>
> One that's been around for *how* long, now? And is *how* well
> documented?

Not terribly well, actually.  Portions of the ICF catalog structure have
been undocumented for many years now (for you non-z/OS people, that's a
sort of hierarchical database that points to where files live in the
z/OS filesystem).  I don't believe that VVR/NVR records are documented
(file metadata).  There was a discussion on ibm-main this week that
talked about reading compressed datasets without using the z/OS API
(good luck).

I've never seen documentation for GRS communication -- so you can't
coordinate updates with active z/OS complexes.

The z/OS filesystem is made deliberately difficult to access without
using the supplied z/OS API set.

--
David Andrews
A. Duda and Sons, Inc.
[EMAIL PROTECTED]

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