I'm not so sure that's practical and necessary for the large memory systems
that we have today.
Last time I looked across a number of customers it was fairly common for LPARs
with hundreds of GB of memory to have paging space < 1x memory. Sometimes much
less. Those with Storage Class Memory were more likely to have paging space >=
real storage. But even there, we've seen >1TB LPARs with with only a few
hundred GB of paging space, including SCM.
Of course it is also fairly common for those large memory systems to be running
with large amounts of that memory being available.
Scott Chapman
On Sat, 2 Nov 2019 12:30:25 -0500, Mike Schwab <mike.a.sch...@gmail.com> wrote:
>Paging packs should be a minimum of 3X real memory. 1 to back main memory,
>then another copy of both for a system dump.
>
>On Sat, Nov 2, 2019, 08:17 Charles Mills <charl...@mcn.org> wrote:
>
>> Please forgive the basic question: I'm a product developer, not a sysprog.
>>
>> Two part question:
>>
>> 1. What command, panel or report would show the level of paging in a z/OS
>> system? Ideally I would like something that would show the instantaneous
>> level and some sort of "period" level (yesterday, last week, last month,
>> etc.).
>>
>> 2. What is a good value? (You have plenty of real memory for your level of
>> activity.) What is a bad value? ("Oh-oh. That's a lot of paging.")
>>
>> Thanks,
>>
>> Charles
>>
>> ----------------------------------------------------------------------
>> For IBM-MAIN subscribe / signoff / archive access instructions,
>> send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
>>
>
>----------------------------------------------------------------------
>For IBM-MAIN subscribe / signoff / archive access instructions,
>send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
----------------------------------------------------------------------
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
