On Tue, 30 Oct 2007 10:19:46 -0500, McKown, John wrote:
>
>> Indeed, but too little too late.  The OS (not utilities) simply
>> should _never_ change the attributes of an existing nonempty
>> data set.  ...
>
>I'll go futher than that. The entire concept of LRECL, BLKSIZE, and
>RECFM is archaic and should be eliminated. If a program wants to read aQ
>dataset, let it specify what it thinks the LRECL and RECFM should be. If
>the system can accomodate that, then so be it - let the system (access
>method) read the physical data and present it in the format that the
>
Quite as the BSAM/QSAM interface to HFS/NFS/ZFS operates.  The
implementors of that facility were clever.  Much the same for
PDSE wrt BLKSIZE, though not LRECL nor RECFM.

Wouldn't it be nice to have RECFM=STREAM,LINEND=NL, in addition?
(Would probably work best on FBA DASD.)

>program wants. The only cavaet is if there is a record which cannot be
>processed properly if "reformatted" into the LRECL that the program says
>that it can accept.
>
UNIX FS interface gives I/O error: "READ WRONG LENGTH RECORD" for this.

At its glacial pace, IBM is accommodating twentieth century technology.

-- gil

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