Re: Slow AS400 performance

[ChadB@xxxxxxxxxxxxxxxxxxxx]

Get familiar with the system monitors within iSeries Navigator.  By looking
at when your disk arm usage and disk IOPs are taking a hit, you can then
see which jobs are hitting them at that specific time.  That's an easy way
to find something that stands out...

                                                                       
             "Condon, Mike"                                            
             <M1C@ingersoll-im                                         
             c.com>                                                     To
             Sent by:                  "Midrange Systems Technical     
             midrange-l-bounce         Discussion"                     
             s@xxxxxxxxxxxx            <midrange-l@xxxxxxxxxxxx>   
                                                                        cc
                                                                       
             04/20/2006 11:56                                      Subject
             AM                        Slow AS400 performance          
                                                                       
                                                                       
             Please respond to                                         
             Midrange Systems                                          
                 Technical                                             
                Discussion                                             
             <midrange-l@midra                                         
                 nge.com>                                            
                                                                       
                                                                       




I am getting vague complaints from our users/developers that one of our
AS400's (a 270, v5r3) is "running slow".
I don't think it's a CPU problem, more like IO is getting thrashed.
One Developer suggested that it may be QYIVRIPS. I did notice the
message "Attempt to download a current phone list was unsuccessful." in
it's job log, but I'm not too excited over that.

What tools/methods are there for determining who/what is thrashing the
IO on the machine?
I'd rather start this way rather than calling IBM, telling the vaguely
"our machine is running slow", and then imagining the IBM Tech's eye's
rolling back in his head upon hearing the question.

--
This is the Midrange Systems Technical Discussion (MIDRANGE-L) mailing list
To post a message email: MIDRANGE-L@xxxxxxxxxxxx
To subscribe, unsubscribe, or change list options,
visit: http://lists.midrange.com/mailman/listinfo/midrange-l
or email: MIDRANGE-L-request@xxxxxxxxxxxx
Before posting, please take a moment to review the archives
at http://archive.midrange.com/midrange-l.


_____________________________________________________________________________

Scanned by IBM Email Security Management Services powered by MessageLabs.
For more information please visit http://www.ers.ibm.com
_____________________________________________________________________________


ForwardSourceID:NT00043AA6