On Fri, 15 Sep 2023 22:47:49 +0000, Sri h Kolusu wrote:
>
>//ISPCTL0  DD  UNIT=SYSVIO,SPACE=(CYL,(10,2)),
>//             DCB=(RECFM=FB,LRECL=80,BLKSIZE=800)
>
Is there reason not to use BLKSIZE=0, which has been preferred
for over a decade (but may not work with COBOL.)

(At times I've published JCL/REXX allocating a temp DSN as profile
because I wanted my scripts to control the ISPF environment.)

-- 
gil

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