Is True Skip-Sequential Processing Possible with RECFM=FB,DSORG=PS?

2023-11-11 Thread David S.
To help resolve a question posted to a LinkedIn group I manage: www.linkedin.com/feed/update/urn:li:groupPost:910927-7128598004344786944 ... I'd like to find out if there's any way to achieve *true* Skip-Sequential processing with a Fixed Block Sequential File with a fairly short record length (i.e

Re: IBM-MAIN Digest - 15 Sep 2017 to 16 Sep 2017 (#2017-259)

2017-09-18 Thread David S.
On Sun, Sep 17, 2017 at 12:00 AM, IBM-MAIN automatic digest system < lists...@listserv.ua.edu> wrote: > There are 3 messages totaling 156 lines in this issue. > > Topics of the day: > > 1. STC - APF - confusion (2) > 2. re-Initialize different types of VSAM files > > --

Re: Apache Spark on z listserver or forum?

2017-01-07 Thread David S.
Saw this in the LinkedIn "Performance & Optimization News..." group: http://linkd.in/2i03y7v - "Spark Analytics on the Mainframe Interesting article by Stephen D. Bartlett at the Clipper Group about running Spark on the mainframe: IBM z Systems Get a Big Charge Out of Spark Analytics." Roger Lowe

How to Calculate %USED for PDSE?

2016-05-26 Thread David S.
[Also posted to the Linked-In "Mainframe Assembler Professionals" group at http://linkd.in/1VjEST7 ] I wrote a program to create a report of DASD usage by scanning the UCB Table, then reading all the DSCBs from all the DASD Volumes for usage data and summing by DSN. The output is essentially the sa

Re: Conversion from Unisys Cobol file definitions to zOS

2016-01-13 Thread David S.
Paul Gilmartin wrote: > Does OPTCD=Q work on all device types? > I had got the impression it applied only to tapes. Yes, tape is implicit. OPTCD=Q only works with tape. ASCII conversion topic in "z/OS DFSMS: Using Magnetic Tapes": http://publibfp.boulder.ibm.com/cgi-bin/bookmgr/BOOKS/dgt2m320/3.7

Re: Conversion from Unisys Cobol file definitions to zOS

2016-01-13 Thread David S.
"... conversion utility or compiler directive to make the translation from the Unisys implementation of Cobol FD's to Enterprise Cobol?" If the data is *all* in character format, then conversion from ASCII to EBCDIC is easy using OPTCD=Q on the DCB. Unfortunately, that's seldom the case, which mak

Re: Publications Needed

2016-01-11 Thread David S.
On Mon, Jan 11, 2016 at 8:10 AM, David S. wrote: > Found this one *outside* Resource Link: > > GC28-6936: > > http://www-01.ibm.com/support/docview.wss?uid=isg23d0fa54bd6d29c5885257dc400795260 > It comes up as GC28-6938, but found it using: http://www.ibm.com/supp

Re: Publications Needed

2016-01-11 Thread David S.
> I'm looking for the following publications: > IBM z13 Installation Manual, GC28-6936 > IBM z13 Service Guide, GC28-693 > Found this one *outside* Resource Link: GC28-6936: http://www-01.ibm.com/support/docview.wss?uid=isg23d0fa54bd6d29c5885257dc400795260 ---

Re: COBOL Code Gened for MOVE COMP-3 S9(9) to S9(8)

2016-01-01 Thread David S.
I wish this question had been stated with greater precision and accuracy, since the precision and accuracy of the answer directly depend on it. Too much guesswork. (1) What *exactly* were the COBOL field definitions and the MOVE statement?? The title just says "MOVE COMP-3 S9(9) to S9(8)". Does th

Re: Accessing TIOT->JFCB segments from COBOL (June 2014)

2015-11-06 Thread David S.
[I realize this thread is kind of old, but I have yet to find a better COBOL solution anywhere else so I thought I'd post it. This was originally posted to the "Mainframe (COBOL, etc) Experts" LinkedIn Group, which I manage for group owner Vikas Kumar, see http://linkd.in/1S4BarK ] Here's a COBOL