Ok seems like the only thing I cannt do running in problem state is have the 
same ddname which to me is some what irrelevant it’s the dataset name that 
counts so when I reopen for write the abended dcb it has to be with a different 
ddname maybe use test unit retddn from SVC 99

> On Jul 5, 2026, at 1:41 PM, Joseph Reichman <[email protected]> wrote:
> 
> I finally got it seems I can recover from put move not put locate as the 
> system buffer is gone
> 
>>> On Jul 3, 2026, at 9:12 PM, Michael Stein <[email protected]> wrote:
>>> 
>>> On Fri, Jul 03, 2026 at 09:16:42PM +0000, Joseph Reichman wrote:
>>> Is there a way of determining the field at offset x’2A’ DCBMACR
>>> seems to be overlaid after a B37 abend
>> 
>>> There are a number of programs to monitor after doing a lot of research
>>> cannt seem to find where or what control block it would be in
>> 
>> DFSMS Macro Instructions for Data Sets
>> Non-VSAM macro instructions
>> Data control block—common fields
>> 
>> If the DCB is open then some fields are different from before it was open.
>> 
>> see:
>> https://www.ibm.com/docs/en/zos/3.1.0?topic=blocks-data-control-blockcommon-fields
>> 
>> 40(28) 8        DCBDDNAM        Eight-byte name of the data definition 
>> statement
>>                               that defines the data set associated
>>                               with this DCB. (Before DCB is opened.)
>> 
>> 40(28) 2        DCBTIOT (After DCB is opened.) Offset from the TIOT origin
>>                         to the TIOELNGH field in the TIOT entry
>>                         for the DD statement associated with this
>>                         DCB. Unsigned. Maximum value is just below 64K.
>> 
>> 42(2A) 2        DCBMACRF        This field can only be referred to during
>>                               and after OPEN. It is common to all uses
>>                               of the DCB and is created by moving the
>>                               DCBMACR field into this area.
>> 
>> 45(2D) 3        DCBDEBA (After DCB is opened.) Address of field, DEBBASIC,
>>               in the associated DEB.
>> 
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