DSPSERV CREATE, is ORIGIN parm a relic?

Ideally, I would like to create all future data spaces with a size of 2GB, rather than 2GB OR 2GB-4K (when the returned ORIGIN value is NZ). I looked at assembler service reference manuals as far back as 1999, and they all state that a non-zero origin value (4K) is based on a processor dependen

calculating data set size - compression concern

A couple months ago I was in the process of retrieving the size of a data set on disk until I came across a flag in one or more DSCBs that indicate whether or not the data set is compressed. This was the point at which I stopped coding, concluding that it was probably not possible to come up wi

zlib on z/OS, may want to apply OA57154

Hi, this is basically just a PSA... If you happen to use zlib on z/os, or bundle it with a z/OS product, you may want to consider applying APAR OA57154 which addresses a known but rare zlib decompression bug. The bug exists in the IBM customized version of zlib shipped with z/OS 2.1, 2.2 and

ICSF CSN ALET-qualified callable services

Q: Anyone know if there is SCOPE= requirement for data spaces intended to be used by some of the ICSF CSN* callable services? I've checked several of the docs in the crypto services library and haven't found much if any detail on the subject. Thanks much, Mike --

BNDRY=PAGE possible CPU hit?

Hi, I recently added the BNDRY=PAGE parameter to a set of STORAGE OBTAINS which acquire storage areas of various sizes from several low private subpools. My intent was a reduction of CPU used by subsequent MVCLE instructions, as ADM would more likely be employed for MVCLE executes, since the s

Re: Waiting for IBM to step away from Laura Ingraham sponsorship

I agree. You might also register your disappointment with IBM Marketing and Sales. They likely control advertising purse-strings. Best regards, Mike -- For IBM-MAIN subscribe / signoff / archive access instructions, send emai

Re: JCL "diagramming"?

Hi John, Correction and suggestion... PowerDesigner is a SAP product, not MS. You might also consider the RDB reverse engineering capabilities found in MS Visio Pro. HTH, Mike Hochee -- For IBM-MAIN subscribe / signoff /

Re: JCL "diagramming"?

Hi John, On a couple of occasions over the years, I’ve considered diagramming batch workloads as well. I never ended up implementing anything, but the following is what I was leaning towards… Inputs: raw JCL (proclibs, joblibs, etc.), processed JCL (joblogs, JOEs, etc.), maybe some externa

Re: z/OS "interactive computing" - AKA TSO/ISPF or UNIX shell

We too are irrational, but for rational rea$on$. So for z/OS development it's mostly ISPF and SPF Lite, and for LUW platforms it's one of a few non-IBM IDEs. HTH, Mike -- For IBM-MAIN subscribe / signoff / archive access i

Re: Running ISPDTLC in batch?

Apparently not! My bad. Exactly what I was looking for. Thank you! -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN

Running ISPDTLC in batch?

We are automating a build procedure for a z/OS product and would like to run the ISPF Dialog Tag Language Conversion Utility (ISPDTLC), in batch. I did not find any evidence of a supported programming interface or 'batch' examples in the ISPF Dialog Tag Language Guide and Reference manual. Any