That should have been 32k lrecl ....sorry

Sent from my iPad
Scott Ford
Senior Systems Engineer
www.identityforge.com



On Jan 22, 2012, at 9:06 PM, Scott Ford <[email protected]> wrote:

> Gil,
> 
> I saw an IBM PowerPoint via google for z/os 1.7 indicating 32k leech for 
> sysin was new in 1.7 , so that would lead to believe it is , I would think an 
> IBMer has to step up and verify the actual
> Maxmium.
> 
> Sent from my iPad
> Scott Ford
> Senior Systems Engineer
> www.identityforge.com
> 
> 
> 
> On Jan 21, 2012, at 1:58 PM, Paul Gilmartin <[email protected]> wrote:
> 
>> I'm trying to find documention on limits on RECFM, LRECL, and BLKSIZE
>> for SYSIN data sets and SYSOUT data assigned to INTRDR.  I find some
>> terse description in:
>> 
>>   Title: z/OS V1R13 DFSMS Using Data Sets
>>   Document Number: SC26-7410-11
>> 
>>   3.5.2 SYSIN Data Set
>> 
>> Which states that the minimum LRECL for a SYSIN data set is 80.
>> It gives no maximum.  32760?  Perhaps an RCF is in order.  If the
>> information is not now available, which publication should supply
>> it?
>> 
>> But I get lost in control blocks.  I shouldn't need to be a
>> systems programmer to get the information I need.  I find very
>> little useful additional information in the JCL Reference, which
>> mentions that LRECL is permitted on "DD *" statements, but
>> gives no maximum.  And experiment shows that while LRECL is
>> syntactically allowed, it has little or no effect.
>> 
>> At some point, max LRECL was probably 80, keypunch width.  some time
>> later it may have been 254 for JES3 (I tested it).  In 1995, OW10527
>> attempted to relax this limit for JES2.  It was such a failure that
>> IBM chose to regress it with by OW16774. OA08145 (NF, 2003?) mentions
>> "Support handling of SYSIN data with an LRECL>254", but gives no
>> maximum.  What publication would this appear in?  Would there be an
>> announcement letter?
>> 
>> It seems there have been enough changes that the documents haven't
>> kept up and now contradict each other.
>> 
>> Thanks,
>> gil
>> 
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