General remarks:
There are three flavours of "partitioned data set":
- PDS
- PDSE (now described as v1)
- PDSE v2
PDS/PDSE can hold data members or program members.
For programs, the difference between PDS and PDSE is significant.
However for brevity let's stop talking about programs.
Now about data members like TCPPARMS, CLIST, REXX, etc.
Very few programs/applications distinguish difference between PDS and
PDSE. That means you can replace PDS with PDSE almost everywhere. With
the exception for IPLPARM, PARMLIB and PROCLIB I would not even check. :-)
Now PDSE v1 vs PDSE v2 - I don't know *any* scenario when the difference
is important for the application.
BTW: when you install z/OS you can change PDS to PDSE. For hundreds of
libraries only few (3? 5?) cannot be changed. However people tend to be
reluctant and most of "PDS by default, but it could be PDSE" libraries
are still created as PDS.
Sometimes it is justified by cross-sysplex sharing, but IMHO it is just
a pretext.
--
Radoslaw Skorupka
Lodz, Poland
W dniu 04.03.2024 o 14:29, roscoe5 pisze:
I could not find definitive doc saying a PDS/E was/wasn’t allowed, but I am
convinced it is. Thanks.
Over the weekend I created a PDS/E and copied the members, made my update, and
I’m awaiting Change approval to do any Obey from the new Library to pick it up,
temporarily. Then the plan is to change the TELNET proc to point to the new
Library. Over the next several weeks I expect IPLs will pick up the Library.
Until then we will be slightly on uneven ground.
I read about two different types of PDSs, type-1 and type-2. In a z/OS 2.4
shop, do we need to specify or is type-2 created by default?
Thanks again!
R
Sent from [Proton Mail](https://proton.me/mail/home) for iOS
On Mon, Mar 4, 2024 at 8:14 AM, Allan Staller <[allan.stal...@hcl.com](mailto:On Mon,
Mar 4, 2024 at 8:14 AM, Allan Staller <<a href=)> wrote:
Classification: Confidential
1) Re-allocate as PDS/E. This will require a PDS/E
2) Compress in batch w/IEBCOPY and make you changes. No restart required.
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From: IBM Mainframe Discussion List<IBM-MAIN@LISTSERV.UA.EDU> On Behalf Of
roscoe5
Sent: Friday, March 1, 2024 2:47 PM
To:IBM-MAIN@LISTSERV.UA.EDU
Subject: TELNET PROFILE, strictly PDS?
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I'll freely admit I am rusty in this area, but I hope this is an easy question.
I know a shop where the TELNET PROFILE dataset is a PDS. We found this today
making a minor update and a space abend. All 16 extents full. Compressing while
is use being one problem, I'd like to reallocate a new PDS/E or Library or
PO-E, whatever the proper term.
But my question is ... is there any restriction against using this file type?
Must it be an old-fashioned PDS?
I know there were some limitations, years ago, but I thought we were beyond
most of those. But I have not kept up for years.
Thanks much everyone.
R
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