Hi Barbara,
Even before I left ASG TMONMVS used supported interfaces for DYNAMIC LPA
since OS/390 R4 was GA and also DYNAMIC EXITS on releases where those
interfaces are present. It has support to update the SVC (& ESR) table,
SMF exits, RACF exits and others while doing the load. He would have to
contact ASG for support but I just used this to quickly reload an
updated copy of IEFUSI and IEFU29 in the last couple weeks without any
difficulty. It is no longer a must have for SMF exits but it does save
keystrokes. If I recall it supports a number of exits/modules which are
still not enabled by IBM for DYNAMIC EXITS.
TMONMVS and the updated exit itself as well as the IBM interfaces are
all suspects because they were found at the scene but if no
documentation was gathered (standalone dump, SVC dumps, logrec, syslog
would all be useful) and it cannot be replicated then they may never
know.
Best Regards,
Sam Knutson, GEICO
Performance and Availability Management
mailto:[EMAIL PROTECTED]
(office) 301.986.3574
"Think big, act bold, start simple, grow fast..."
-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On
Behalf Of Barbara Nitz
Sent: Tuesday, November 22, 2005 1:03 AM
To: IBM-MAIN@BAMA.UA.EDU
Subject: Re: dynamic LPA
>We recently attempted to replace our IEFACTRT routine in our production
>platform using TMON..
And how do they do it these days? Do they use the interfaces CSVDYNLPA
and CSVDYNEXIT (or whatever that one's called)? Or do they do it the way
it was done before these interfaces became available - by altering
addresses in MVS control blocks?
>Well, as luck would have it, our system appeared to freeze up. We had
>been able to do this replace function successfully on our test LPAR.
How did you determine that the iefactrt change was the reason for the
freeze? What exactly does your actrt do? For which types of work (TSO,
STC, JES)?
>Anyone care to comment on this type of a replacement in dynamic LPA...
>hazards, potential problems?
As long as I have used the MVS commands utilizing the dynamic interfaces
I never had any problem (other than code problems in the exit itself -
which has nothing to do with how they were loaded/defined). It took me
some time, though, to really understand the relationship between
sys.iefactrt, sysstc.iefactrt, systso.iefactrt and sysjes.iefactrt and
how that interacts with the module that gets called for each dynamic
exit.
Regards, Barbara Nitz
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