Re: since last official 2.1-ptf-update problem with PASN-AL-entries

2014-11-26 Thread Peter Relson
This is likely due to an intentional change in OA45768.

It was never documented that z/OS would delete entries from a PASN access 
list for a deleted data space. Doing such deletion, in some cases, causes 
problems that can be dealt with only by not having done the deletion.

A program relying on the deletion behavior (and encountering no PASN AL 
entry available) will have to be changed.

I don't recall if there was any hold information in the APAR that 
described the ramification to a program relying on the undocumented 
behavior.

Peter Relson
z/OS Core Technology Design

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since last official 2.1-ptf-update problem with PASN-AL-entries

2014-11-24 Thread Leopold Strauss

Hi, all,

We have some older piece of software ( part of a larger 
software-package), that uses dataspaces and therefore DSPSERVE-CREATE 
and -DELETE and ALESERV-ADD, but no ALESERV-DELETE.


It is running flawlessly even at customers with very high number of 
workunits.


And since yesterday something is different.

One custumer after some time gets errors, that ALESERV ADD return x'0c', 
which means, that no more entries in PASN-AL are free.


Customer wrote:

 * it's independent of our version, it happens in vyyy as well as in
   all vxxx ( I wiped out our version-names)
 * only on systems with high volume jobs
 * only since the customer's z/OS version 2.01.00 has been patched to
   the next level

Because their jobs and the duty did not change, I suppose, that up to 
the above Patch there must have been a mechanism in zOS, which 
automatically deletes PASN-AL-entries for not longer existing 
dataspaces, and obviously for many past zOS-versions.


Otherwise we would have had the 'new' problem already many years ago 
without ALESERV-DELETE.


What's your experience/opiniion about/with that ?

thx and br

Leo

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