Charles Mills wrote:
I confess to having avoided learning much about SMS; perhaps that needs to
change. In the meantime, could I impose on someone for an answer to the
following question?
A dataset is allocated with JCL as follows (the complete DD statement is
shown -- there are no other operands):
XXSYSUT7 DD UNIT=SYSDA,SPACE=(605,(4640,580))
SMS does the following:
IGD101I SMS ALLOCATED TO DDNAME (SYSUT7 )
DSN (SYS06167.T102753.RA000.jobname.R0227249 )
STORCLAS (SCTEMP) MGMTCLAS ( ) DATACLAS (DCTEMP)
VOL SER NOS= TEMP01
Is it *possible* that something in DCTEMP or elsewhere in SMS could be
having the effect of filling RECFM=U into the DCB before the open exit is
driven -- in other words, having roughly the same effect as if RECFM=U had
been coded in the DD statement?
DATACLASS can assign almost any parameter you want, including LRECL,
BLKSIZE, RECFM, etc.
If your ACS routine assigns a dataclass to the dataset, the values
specified in dataclass definition will be used *unless* you explicitly
specified your values in the DD. (a little bit simplified, but true for
this case).
--
Radoslaw Skorupka
Lodz, Poland
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