> On Nov 16, 2016, at 10:12 AM, Mick Graley <mick.gra...@gmail.com> wrote:
> 
> I think Ed might be right here on the SYSGEN option history, however TSO
> EDIT doesn't seem to support it fully these days.
> I have access to 5 very different systems each with different heritage.
> Two of them are >30 years old and will date back to the SYSGEN days, one of
> them I'm not sure of it's age, but the other two are much younger.
> All of them use an FB 80 SYSPROC concatenation except for one of the older
> systems which uses a VB 255 SYSPROC concatenation.
> TSO EDIT creates a VB,255,3120 data set for type CLIST on all the systems
> except for the older FB 80 system, which creates a corrupt FB,80,3120 data
> set. I'm guessing that the original SYSGEN option of FB was copied across
> for this system, but it doesn't look like TSO EDIT fully supports it as
> it's obviously still using variable length edit buffers, but writing full
> FB 80 byte records to the new PDS with the line numbers at the beginning of
> the record rather than in columns 72-80. Here is a transcript of a TSO
> session on the older FB system to demonstrate this:
> 
> READY
> listds temp.clist
> IKJ58503I DATA SET xxxxxx.TEMP.CLIST NOT IN CATALOG
> READY
> e temp(hello) cl
> IKJ52320I DATA SET OR MEMBER NOT FOUND, ASSUMED TO BE NEW
> INPUT
> 00010 proc 0
> 00020 write hello mick
> 00030 end
> 00040
> E
> l
> 00010 PROC 0
> 00020 WRITE HELLO MICK
> 00030 END
> IKJ52500I END OF DATA
> end save
—————————————_SNIP————————————————
I think smp (NOTE without the e) was the problem a long time ago.
There was a gotcha in that IEBUPDTE does *NOT* support VB records.
IBM needed to support VB but their utilities did NOT.
IBM then forced the issue of changing clists to FB. BUT by then everyone was 
using VB.
Even today there is no IBM system utility that supports VB, and IBM continues 
to send out FB clists.

There could be a solution that IBM would support VB/FB concatenation.

There are several obstacles to doing this and IBM doesn’t (IMO) want to spend 
the time to do so.

Ed

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