On Fri, 25 Sep 2020 08:20:14 +1000, Attila Fogarasi wrote:

>SMF type 92, lots of subtypes covering different aspects, remember that
>Unix file system is different from MVS :)
> 
I believe one difference you may find is that on UNIX systems I know
the kernel caches disk blocks in a cache shared by all jobs.  That can
greatly optimize frequent operations such as directory searches.  As
a consequence, all physical I/O may appear to be done by the OMVS
address space.  I don't know whether SMF reports accesses to that
cache on behalf of user processes.

>On Thu, Sep 24, 2020 at 11:07 PM Ambrose Jr wrote:
>>
>> How to find the  I/O count of jobs running  at USS service ? .

-- gil

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