On Thu, 28 Oct 2021 22:42:57 -0400, Steve Smith wrote: >SYSIN/SYSOUT are subsystem datasets, and the (sort of) "natural" interface >is by ACB/RPL, where each record has a specified length (in the RPL). >LRECL & BLKSIZE are rather nebulous concepts compared to QSAM/BSAM, which >are emulated; one might say on a best-effort basis. > The specification, implementation,and behavior of that "best-effort" should be documented, probably in "Using Data Sets" with a citation in the JCL Ref.; perhaps vice-versa.
"Unpredictable" would be unacceptable here. -- gil ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN