Correct on both statements.


--
Jim Oberholtzer
Agile Technology Architects

-----Original Message-----
From: MIDRANGE-L <midrange-l-bounces@xxxxxxxxxxxx> On Behalf Of Joe Pluta
Sent: Saturday, December 22, 2018 11:59 AM
To: midrange-l@xxxxxxxxxxxx
Subject: Re: Subsystems, Shared Pools and Routing Entries

And BTW, I realize I'm making some assumptions here.

For example, I think that the "subsystem monitor" refers to the entry in WRKACTJOB that has the same name as the subsystem description and (at least on my system) user QSYS. It's the one that is outdented in the display. I don't know a lot about that job, but I gather that it takes care of the coordination of the other jobs within the subsystem.
<Exactly correct>


I took from your post that it's that job that should not run in a shared pool for performance reasons (if, for example, there were no activity slots available then slow job startup could occur). Thus my questions about two pools, and how to route that monitor job. If I'm completely offbase, I'm sure you'll let me know. :)
< Again, exactly correct>


On 12/22/2018 11:27 AM, Joe Pluta wrote:
That implies two pools, one for the monitor and one for the jobs. I
don't see any obvious way to route the monitor, so does it magically
get assigned to the first pool defined in the POOLS keyword? That
would mean something like

POOLS((1 *BASE) (2 *SHRPOOLx))

If so, then I have to change all my routing entries to point to the
second pool. Not impossible, but a bit more tedious since MIMIX has
about 20 routing entries. Or is there a special routing entry you can
add just for the subsystem monitor?


On 12/22/2018 11:11 AM, Jim Oberholtzer wrote:
Joe,

In that misconfiguration IBM i saves you buy simply moving the job to
*BASE (In my view the job should fail to start but that's another
discussion) so work continues.

One other thing. Vision/Syncsort recommending that the Mimix
subsystem only have a shared pool is in my opinion (and many other
folks) incorrect. The subsystem monitor needs to get an activity
level whenever it wants, and it could very likely run into conflicts
if the specific shared pool is not set up properly. I've fixed this
at I don't know how many Mimix customers. Now jobs in those
subsystems start quickly and get on with it without any hold up.


--
Jim Oberholtzer
Agile Technology Architects

-----Original Message-----
From: MIDRANGE-L <midrange-l-bounces@xxxxxxxxxxxx> On Behalf Of Joe
Pluta
Sent: Saturday, December 22, 2018 11:05 AM
To: Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxx>
Subject: Subsystems, Shared Pools and Routing Entries

I'm just going through some steps to clean up a few things. One
thing is that the fine folks from MIMIX recommend we move MIMIX into
its own pool. Not a bad idea. They recommend a shared pool rather
than a private pool, and I'm okay with that. I was able to create
the shared pool with no problem by assigning memory to it (although
I'm not sure how to remove it, but that's a different issue). And
then they say to set up the MIMIX subsystem to have only that shared
pool using POOLS((1 *SHRPOOLx)). Again, I understand. And finally,
make sure all the routing entries point to pool 1 (which they should
have been already, and were).

So I'm okay with this. Instead of all the MIMIX routing entries
shoving jobs into *BASE, they'll now go into a shared pool. Yay!

But while reviewing things I ran into a weird case. I found a
subsystem pointing to a shared pool, but the shared pool has no
memory defined in WRKSHRPOOL. For arguments sake, say it has
POOLS((1 *SHRPOOL6)) but
*SHRPOOL6 is currently defined with no memory. How does THAT work?
Obviously it's wrong, but the subsystem is running. Since that
subsystem is incorrectly defined, do all the routing entries just get
funneled into *BASE? That's what seems to be happening according to
WRKACTJOB.



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