On 2018-03-05 5:50 PM, Robin Atwood wrote:
Greg-
The SVC 99s are under my control and that is very useful to know!
Thanks
Robin
Robin,
Great!
:)
But I was slightly inaccurate.
:(
It is not in a text unit, it is in the RB proper - bit S99MSGL0 in byte
S99FLG11.
In a batch program (HSIPINQ) which allocates lots of DDs, I use the flag
in both the allocation and deallocation requests to reduce spooled
output size, as well as the number of pages one has to scroll down to
get to the start of the SYSPRINT report. (Sometimes this is being viewed
outside SDSF where N 3 works well.)
The main purpose I like all those allocation and data set disposition
messages in the general case is so that I can quickly see which data
sets are allocated at the time of an abend, and can usually figure out
which DDs are allocated to which data sets.
Naturally, the data sets disposed of after the abend are the ones which
were allocated at the time of the abend.
Of course, sometimes customer flower boxes from their IEFACTRT routine
can be helpful in this area too.
Anyway, in the SYSPRINT report line which reports the data sets as they
are processed I now also display the DD name just in case it's needed.
IIRC, I went looking for this flag one day when trying to figure out how
BPXWDYN can do allocations and deallocations without generating such
messages. Given its component prefix, perhaps it was written with a view
to operating in spawned address spaces which usually leave no spooled
relic of their existence.
Cheers,
Greg
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