Re: Retrieving active controlling subsystem

[Wayne McAlpine <wayne.mcalpine@xxxxxxxxxxxxxxxxx>]

That's a very clever approach.  See what happens when this brain trust 
starts to grapple with a problem.

vhamberg@xxxxxxxxxxx wrote:
> I Have The Answer - maybe. Get a list of the jobs of type SBS - these are the 
> subsystem jobs. The one with the lowest job number is the controlling subsystem 
> (cuz it has to have been the first one started) - unless the job numbers 
> wrapped. Or use the job start date/time, of which there are a couple varieties 
> - when entered the system, when became active, etc. You can use QUSLJOB to get 
> only the subsystem monitor jobs and only the start info for them.
>
> -------------- Original message -------------- 
> From: "mlazarus@xxxxxxxx" <mlazarus@xxxxxxxx> 
>
>
> > Mark, 
> >
> > That's a bit a kludge because IBM can easily change the location of this 
> > job in a future release (abeit unlikely) and I think that it's possible to 
> > disable the scheduler. There *must* be a way to detect this at the 
> > subsystem controlling job level. 
> >
> > -mark 
> >
> > Original Message: 
> > ----------------- 
> > From: Mark S. Waterbury mark.s.waterbury@xxxxxxx 
> > Date: Tue, 11 Apr 2006 11:43:01 -0400 
> > To: midrange-l@xxxxxxxxxxxx 
> > Subject: Re: Retrieving active controlling subsystem 
> >
> >
> > Hi, Mark: 
> >
> > I issued a "WRKSBSJOB QCTL" on one of my machines, and 
> > I can see in the "controlling" subsystem a job named QSYSSCD 
> > running under user QPGMR and calling program QEZSCNEP ... 
> >
> > I think this is something to do with the OS/400 job scheduler 
> > that comes with OS/400 (WRKJOBSCDE and friends ...) 
> >
> > I don't see that job name or program active in any of the other 
> > subsystems ... 
> >
> > So, perhaps this might be one way you can 'tell' if this is in fact 
> > the "controlling" subsystem, by looking to see if this job is active 
> > in that subsystem? 
> >
> > Regards, 
> >
> > Mark S. Waterbury 
> >
> > ----- Original Message ----- 
> >
> > > From: 
> > > To: 
> > > Sent: Tuesday, April 11, 2006 10:24 AM 
> > > Subject: RE: Retrieving active controlling subsystem 
> >
> > > Scott, 
> > >
> > > So far, that's the best suggestion I've received. Now I'd like to take 
> > > this a step further. 
> > >
> > > We have a condition we call "partially restricted." In order to make our 
> > > save-while-active backups less complicated, we shut down all subsystems 
> > > that might lock objects in our nightly backup. Once the ENDSBS command 
> > > has 
> > > run it might take a little while for the subsystems to end. So I'm 
> > > writing 
> > > a utility to see if any subsystems are active that are not in a special 
> > > "exempt list" and returning an "active" flag, so that the calling 
> > > procedure 
> > > can wait and try again a little later. 
> > >
> > > The controlling subsystem should not need to be in the exempt list, since 
> > > it's always exempt. My problem is, if the active controlling subsystem 
> > > does 
> > > not match the QCTLSBSD value I will not have a way to determine that it's 
> > > OK to skip it. 
> > >
> > > Since the ENDSBS knows to send CPF1053, the status must be somewhere. Any 
> > > ideas? 
> > >
> > > -mark 
> > >
> > > Original Message: 
> > > ----------------- 
> > > From: Ingvaldson, Scott SIngvaldson@xxxxxxxxxxxx 
> > > Date: Tue, 11 Apr 2006 08:12:31 -0500 
> > > To: midrange-l@xxxxxxxxxxxx 
> > > Subject: RE: Retrieving active controlling subsystem 
> > >
> > >
> > > I'm not sure that you can end the controlling subsystem by itself. When 
> > > I do an ENDSBS SBS(QCTL) I get message CPF1053 - Ending controlling 
> > > subsystem QCTL not allowed. 
> > >
> > > So if you RTVSYSVAL QCTLSBSD then an ENDSBS for the QCTLSBSD value you 
> > > can monitor for CPF1053. I'm not sure you even need to go that far, you 
> > > can probably just start ending active subsystems and monitor for the 
> > > CPF1053. 
> > >
> > > Regards, 
> > >
> > > Scott Ingvaldson 
> > > iSeries System Administrator 
> > > GuideOne Insurance Group 
> > >
> > >
> > > -----Original Message----- 
> > > date: Mon, 10 Apr 2006 17:37:50 -0400 
> > > from: "mlazarus@xxxxxxxx" 
> > > subject: Re: Retrieving active controlling subsystem 
> > >
> > > Mark, 
> > >
> > > I'm looking for the "current active" controlling subsystem. If I do a 
> > > CHGSYSVAL QCTLSBSD, then I believe that the retrieve will not give me 
> > > which one is currently active, rather which one *will* be active. 
> > >
> > > -mark 
> > >
> > > Original Message: 
> > > ----------------- 
> > > From: Mark S. Waterbury mark.s.waterbury@xxxxxxx 
> > > Date: Mon, 10 Apr 2006 17:03:52 -0400 
> > > To: midrange-l@xxxxxxxxxxxx 
> > > Subject: Re: Retrieving active controlling subsystem 
> > >
> > >
> > > RTVSYSVAL QCTLSBSD ? 
> > >
> > > ----- Original Message ----- 
> > >
> > > > From: 
> > > > To: 
> > > > Sent: Monday, April 10, 2006 4:36 PM 
> > > > Subject: Re: Retrieving active controlling subsystem 
> > >
> > > > Michael, 
> > > >
> > > > That code works (with modifications) to get the complete list of 
> > > > subsystems. It does not tell me which one is the controlling 
> > >
> > > subsystem. 
> > >
> > > > -mark 
> > > >
> > > > Original Message: 
> > > > ----------------- 
> > > > From: Michael_Schutte@xxxxxxxxxxxx 
> > > > Date: Mon, 10 Apr 2006 16:14:27 -0400 
> > > > To: midrange-l@xxxxxxxxxxxx 
> > > > Subject: Re: Retrieving active controlling subsystem 
> > > >
> > > >
> > > > Does this help? 
> > > >
> > > > http://archive.midrange.com/rpg400-l/200304/msg00127.html 
> > > >
> > > > You can specify the job name by replacing the 
> > > >
> > > > '*ALL *ALL *ALL ' 
> > > >
> > > > With what you want to look for. 
> > > >
> > > > Michael Schutte 
> > > > Work 614-492-7419 
> > > > email michael_schutte@xxxxxxxxxxxx 
> > > >
> > > > ---------------- 
> > > >
> > > > How would I go about retrieving the *active* controlling subsystem? 
> > > > If the QCTLSBSD system value is changed, retrieving that value won't 
> > > > reflect the current reality. 
> > > >
> > > > I'm looking for this info becuase I want to automate an orderly 
> > > > shutdown of active subsystems, but do not want to end the controlling 
> > >
> > > *SBS. TIA. 
> > >
> > > > -mark 
> >
> >
> >
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