Oh boy, did someone go off on a tangent. Let me throw in my $0.02 on this:
#1. YES, the RDW (4 bytes) MUST BE included in the length specified in LRECL= #2. From the MVS JCL Reference: the value of LRECL is either: "1 to 32,760 for non-VSAM data sets." Or " 1 to 32,761 for VSAM key-sequenced (KS), entry-sequenced (ES), or relative record (RR) data sets. (LRECL does not apply to VSAM linear space, RECORG=LS, data sets.)" So specifying 32,767 exceeds the maximum allowed, just as the error message states. Al Nims Systems Admin/Programmer 3 Information Technology University of Florida (352) 273-1298 -----Original Message----- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of retired mainframer Sent: Tuesday, December 16, 2014 12:15 PM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: RECFM=VBS,LRECL=32767? > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] > On Behalf Of nitz-...@gmx.net > Sent: Tuesday, December 16, 2014 1:56 AM > To: IBM-MAIN@LISTSERV.UA.EDU > Subject: Re: RECFM=VBS,LRECL=32767? > > > 6 //DD7 DD UNIT=SYSALLDA,SPACE=(1,0),RECFM=VBS,LRECL=32767 > > 6 IEF638I SPECIFIED NUMERIC EXCEEDS MAXIMUM ALLOWED IN THE > LRECL SUBPARAMETER OF THE DCB FIELD > > Why is this considered an error? > > > > In fact, 32761 is accepted; 32762 causes the error. On what > > rationale is this based? > > The same limts appear to apply to RECFM=VB. > > I haven't tried OPENing any such data set. > > The explanation I came up with when I tested boundary conditions > (<VBG>) was that > 32767 is the maximum allowed for fixed records. And that length was determined by > DASD geometry (in the past). A variable length record always has a > length field preceding > the actual record data. And since this is blocked, you also need > length for the block > descriptor. These two make up the 6 byte that you cannot specify for > lrecl without > exceeding geometry. I haven't tested (or if I did, I forgot the > results) if it makes a difference > when you use RECFM=V(S). The layout is described somewhere in > SC26-7410 Using data > sets. Isn't the RDW already included in the LRECL (VBA print files are 137 which leaves 133 for data which includes carriage control)? Isn't the BDW always excluded from the LRECL since only one is present in a block which may contain more than one record)? Aren't the RDW and BDW both 4 bytes each? ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
