On Fri, 16 Dec 2016 07:34:46 -0600, Tom Marchant wrote:
>
>The maximum BLKSIZE for DASD is 32760.
>
In fact:
z/OS 2.2.0
z/OS DFSMS
z/OS DFSMS Using Data Sets
Non-VSAM Access to Data Sets and UNIX Files
Specifying and Initializing Data Control Blocks
Selecting Data Set Options
Block Size (BLKSIZE)
If you do not use the large block interface (LBI), the maximum
block size is 32␠760 except ...
My motivation: I have an EXEC that extracts all the spool files for a
job, passing DDNAMES generated by the SDSF Rexx API as SYSUT1
to IEBGENER. When I test on an edge condition, I get S013-68.
Support was unable to reproduce the failure using EXECIO in place
of my IEBGENER. (They recently tried IEBGENER and reproduced it;
they've sent me a fixtest, not yet tried.) But I'm experimenting
and trying to imagine why EXECIO accepts files that IEBGENER
rejects. I suppose it's possible that EXECIO uses LBI and IEBGENER
does not. The examples in the Manual generally use EXECIO, not
IEBGENER.
http://trevorjim.com/postels-law-is-not-for-you/
-- gil
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