Yes, PDSE was mentioned, but the FORCE SYSTEM DETERMINED BLOCKSIZE affects more than PDSE.
-- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 ________________________________________ From: IBM Mainframe Discussion List [[email protected]] on behalf of Paul Gilmartin [[email protected]] Sent: Wednesday, March 3, 2021 12:20 PM To: [email protected] Subject: Re: TSO RECEIVE and System Determined Blksize - New RFE On Wed, 3 Mar 2021 17:03:55 +0000, Seymour J Metz wrote: >Noted, 32760, truncated to a multiple of LRECL, reduces the number of calls. > >PDSE won't reblock if the dataset isn't PDSE. Or are you saying that FORCE >SYSTEM DETERMINED BLOCKSIZE only applies to PDSE? > PDSE was mentioned earlier in this thread, although not in the earliest plies: >_______________________________________ On Wed, 3 Mar 2021 09:18:12 -0600, Wendell Lovewell wrote: >It's hard to tell exactly what's going on under the covers, but as best I've >been able to deduce in this particular case is: > >1) RECEIVE reads the INMR02 record, sees the original PDSE was blksize 27920 >and allocates it that way, but does not open it. >2) SDB steps in, says "they really want 32720" and changes the (VTOC?) entry >to that. (32720 seems like a really poor choice) -- gil ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
