Re: IPL Processing Sequence

[Jim Oberholtzer <midrangel@xxxxxxxxxx>]

:-)
The HMC still relies on TCP and password communications with the FSP.  
By adding a couple of layers of "stuff" by definition the HMC is not 
quite as reliable.  If it fails it's usually because a human did 
something stupid, but still...

Jim Oberholtzer
Chief Technical Architect
Agile Technology Architects


On 2/8/2012 3:21 PM, rob@xxxxxxxxx wrote:
> How dare you put down the HMC and say it is nearly as reliable.  Some
> might say that twinax would have liked to have been that reliable.
>
>
> Rob Berendt
> -- Group Dekko Dept 1600 Mail to: 2505 Dekko Drive Garrett, IN 46738 
> Ship to: Dock 108 6928N 400E Kendallville, IN 46755 
> http://www.dekko.com From: Jim Oberholtzer <midrangel@xxxxxxxxxx> To: 
> Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxx>, Date: 
> 02/08/2012 04:11 PM Subject: Re: IPL Processing Sequence Sent by: 
> midrange-l-bounces@xxxxxxxxxxxx If your doing maintenance and want to 
> start into a restricted state, just change the IPL attributes to start 
> that way. (You have to change it each and every time you IPL when you 
> want restricted state) That way you don't mess with the start up 
> program system value. Also the HMC does not rely on any of those 
> processes running so and HMC console should not have issues. Aside 
> from some small issues with connectivity to the FSP the HMC is nearly 
> as reliable as the twinax console was (I did say /nearly/ before the 
> howls start) While LAN console can be a bit more temperamental 
> ordinarily it's quite reliable as well. Jim Oberholtzer Chief 
> Technical Architect Agile Technology Architects On 2/8/2012 3:03 PM, 
> Evan Harris wrote:
> > >  I used to do this by habit in order to control everything via the
> > >  QSTRUPPGM but am currently re-thinking this approach.
> > >
> > >  My old approach has an inbuilt assumption that there will be access
> > >  available that does not rely on TCP, but I have been caught a couple
> > >  of times where this assumption has been faulty and QSTRUPPGM has been
> > >  changed to *NONE - thereby making access to the system problematic
> > >  where there is a console issue.
> > >
> > >  I often change QTSRUPPGM to *NONE when doing maintenance and this can
> > >  cause access issues if the console is compromised.
> > >
> > >  On Thu, Feb 9, 2012 at 9:43 AM, Jim Oberholtzer<midrangel@xxxxxxxxxx>
> wrote:
> > > > >>  >    Rich,
> > > > >>  >
> > > > >>  >    It sounds a bit like your asking about the TCP/IP servers.  If you
> need
> > > > >>  >    to control that use CHGIPLA to stop TCP from starting with
> > > > >>  >    QSYSWRK/QUSRWRK start and then start TCP/IP and the balance of the
> TCP
> > > > >>  >    servers manually in the start up program per your needs.
> > > > >>  >
> > > > >>  >    A discussion of the IPL steps from LIC to OS can be found at the
> Info
> > > > >>  >    center under Systems Management, Work Management, Reference, IPL
> System
> > > > >>  >    reference codes. Until the system is at a point where the the start
> up
> > > > >>  >    program runs there's not much you can do with it unless you manually
> > > > >>  >    IPL, then you have a small amount more control...  but I sense the
> start
> > > > >>  >    up program is what your looking for.
> > > > >>  >
> > > > >>  >    Jim Oberholtzer
> > > > >>  >    Chief Technical Architect
> > > > >>  >    Agile Technology Architects
> > > > >>  >
> > > > >>  >
> > > > >>  >    On 2/8/2012 2:31 PM, Rich Loeber wrote:
> > > > > > >>>  >>        Does anyone know where I can find a description of the
> sequence of steps
> > > > > > >>>  >>         and when they get processed during an IPL?  I have some OS
> maintenance I
> > > > > > >>>  >>         want to do during the QSTRUP program, some of which affects
> exit point
> > > > > > >>>  >>         registration.  I'm finding that some server functions are
> getting started
> > > > > > >>>  >>         before I can complete what I need to do in the QSTRUP and the
> results are
> > > > > > >>>  >>         not always pretty.  It would help to know what is happening
> during the IPL
> > > > > > >>>  >>         at each stage and what triggers each event to happen.
> > > > > > >>>  >>
> > > > > > >>>  >>         Rich Loeber - @richloeber
> > > > > > >>>  >>         Kisco Information Systems
> > > > > > >>>  >>         [1]http://www.kisco.com
> > > > > > >>>  >>         SDG
> > > > > > >>>  >>
> > > > > > >>>  >>    References
> > > > > > >>>  >>
> > > > > > >>>  >>         Visible links
> > > > > > >>>  >>         1.http://www.kisco.com/
> > > > > > >>>  >>    --
> > > > >>  >    --
> > > > >>  >    This is the Midrange Systems Technical Discussion (MIDRANGE-L)
> mailing list
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> > > > >>  >
> > >
> > >  -- Regards Evan Harrishttp://www.auctionitis.co.nz
> > >  -- 
> --