So to answer the questions, once disabled the system has no way
to interrupt you and you can starve everyone else out.
But if you're *not* running disabled, which is the normal case,
your program will get interrupted sooner or later. There will
be other routines starting an I/O every now and
Was Barbara saying that other mechanisms than HSM were used to migrate
data sets? If so, then we can consider some sort of rules parameter.
I was talking about the time when our ISV data sets in APFlist were not
SMS-managed. My RACFadmin used to complain a lot about apf datasets being
migrated
Knutson, Sam wrote:
CHECK(IBMCSV,CSV_APF_EXISTS)
START TIME: 10/23/2007 20:03:57.740282
CHECK DATE: 20050720 CHECK SEVERITY: LOW
However, if my program is also running disabled for external interrupts
and it uses CPU cycles heavily , how will the system 'pre-empt' my TCB?
Or it cannot and just let my TCB starve other users?
So to answer the questions, once disabled the system has no way to
interrupt you and you can starve
I had the idea of getting automation to listen
to IEF404I BPXAS - ENDED - TIME=00.31.51
$HASP395 BPXASENDED
(one of the two), and whenever it happens do the forks under the
assumption that that will not hinder the *actual* work that needs it.
Wouldn't is be sufficient to run
Barbara Nitz [EMAIL PROTECTED] wrote in message
news:[EMAIL PROTECTED]...
First of all, my apologies to the original poster that I had
appropriated his thread! I am finally changing the name
I have checked with our resident unix people - a little program to do
fork() will be easy to
Be careful: it was some time ago when I had my USS course, but I
remember that there are fork()'s that can remain within the same
address space and fork()'s that require a new (BPXAS) address space.
There are *processes* that can share an address space. If a new
process is create with fork()
Hunkeler Peter , KIUK 3 [EMAIL PROTECTED] wrote in
message
news:[EMAIL PROTECTED].
...
Be careful: it was some time ago when I had my USS course, but I
remember that there are fork()'s that can remain within the same
address space and fork()'s that require a new (BPXAS) address space.
George Fogg wrote:
BTW, does the ISPF exits run authorized? I read the manual but not quite
sure if they do.
No. AC=00 by default.
These exits must be re-usable, preferably reentrant, because they are loaded
once during logon. AMODE=31, RMODE=ANY.
HTH!
Groete / Greetings
Elardus Engelbrecht
Jerry,
You're right, it can be done in a lab. I've seen it done in a lab.
From my short experience in such a configuration, you should be aware of at
least these basic issues:
- You will need an additional program on top of SDSF to be able to view
JES3's spool. I know (E)JES supports JES3 and
Chris,
Thanks for your confirmation.
Peter,
Yes, I overlooked the situation you mentioned :)
On 10/24/07, Hunkeler Peter (KIUK 3) [EMAIL PROTECTED]
wrote:
So to answer the questions, once disabled the system has no way
to interrupt you and you can starve everyone else out.
But if you're
Barbara,
Just after I sent my question to the list, I searched the bookshelves using
the keyword 'loop' and surprisingly to find some useful information in a
diagnostic book.
I think what the manual says is the same as what you said. In a MP system, a
disabled loop is observed as a spin loop by
Johnny Luo [EMAIL PROTECTED] wrote in message
news:[EMAIL PROTECTED]...
Barbara,
Just after I sent my question to the list, I searched the bookshelves
using
the keyword 'loop' and surprisingly to find some useful information in
a
diagnostic book.
I think what the manual says is the same
I must say it's very interesting. Suppose in a single-processor system,
I write some codes which cause a disabled loop. How to handle it? Press
'restart' key like what we usually react in a windows system? :)
The difference being that you, the operator, get in control after
pressing
the restart
Peter,
I checked POO and yes, RESTART interruption cannot be disabled so at least
we have a final choice under such a situation.
Never had the chance to use HMC (I guess the restart key must be there), do
you mean after pressing it we will be prompted to select the action to take?
On
Never had the chance to use HMC (I guess the restart key must be
there), do you mean after pressing it we will be prompted to select
the action to take?
It used to be a physical button on a real console's keyboard. Since
consoles are mostly plain PCs with 3270 emulators nowadays, that
key is
Johnny Luo [EMAIL PROTECTED] wrote in message
news:[EMAIL PROTECTED]...
Peter,
I checked POO and yes, RESTART interruption cannot be disabled so at
least
we have a final choice under such a situation.
Never had the chance to use HMC (I guess the restart key must be
there),
Yes, it used to
So, Peter, as far as I know, the operator does not (directly) get
control after a Restart Interrupt.
Yes, you do. I've been playing with this, just don't remember the
exact messages and options you get.
The system gives you the option to ABEND or RESUME the interrupted
task. After all, it might
Hi,
I agree the CSV_APF_EXISTS check is working correctly. I think DFSMShsm
certainly can and should determine a data set is APF regardless of
weather it was defined in the recommended way using SMS or incorrectly
using a volume serial.
SCP honors a volser specified for an SMS managed data for
I want to thank everyone for trying out these scenarios and letting us know
the results. Now I have some evidence with which to pursue this with the
HSM folks. I will report back if I find anything out
Perhaps Rob Scott and Allan Staller could confirm if Sam Knutson's and Ed
Jaffe's (and
Peter,
APF list entry in PROGxx is :
APF ADD DSNAME(some.dataset) SMS
some.dataset is SMS managed, and is migrated to ML2.
It is likely that at some point in the past on this system (or one of the other
systems in the sysplex) that this dataset was migrated whilst NOT in the APF
Thanks to all who have responded. per request from others, please respond to
the list so all can see, I didn't think many folks would be interested in this
topic.
the JES3 side is currently using a product called OMC-Flash for the jes3/sdsf
type of things.
for those that have done this, any
Wouldn't is be sufficient to run the keep BPXAS alive program
periodically, say every 15 minutes? The new childs would use idle
BPXASs and WLM would create new ones if the ovefrall system load
permits this.
Well, I don't want to unnecessarily create new BPXASs when the system is
already busy
What is the real problem you are trying to solve?
-Original Message-
From: John Dawes [mailto:snip]
Sent: Monday, October 22, 2007 3:47 AM
To: IBM-MAIN@BAMA.UA.EDU
Subject: SMS Question - Rename STORAGE CLASS
I am in a bind, can I rename a storage class? I am hesitant to try it
out
-Original Message-
From: IBM Mainframe Discussion List
[mailto:[EMAIL PROTECTED] On Behalf Of Ted MacNEIL
Sent: Tuesday, October 23, 2007 5:26 PM
To: IBM-MAIN@BAMA.UA.EDU
Subject: Re: tso racf
That way you know the user was safely tucked into ISPF.
Why do we care?
What
ISTR one of their number taking hte list down a while back ...
http://www.theregister.co.uk/2007/10/24/kamikaze_squirrel/
--
Phil Payne
http://www.isham-research.co.uk
+44 7833 654 800
--
For IBM-MAIN subscribe / signoff
i never said i liked the approach i was asked to do. as a matter of fact i
dont. but, i kind of like to eat.etc... so , i am trying to do what my boss
has asked me to do. we all have little
quirks, so this isnt no big deal. i really do appreciate all
of your comments and suggjestions. i will
-Original Message-
From: IBM Mainframe Discussion List On Behalf Of Barbara Nitz
[ snip ]
- Make sure you can stop the mechanism when sutting down z/OS for
IPL.
Part of the shutdown process is to stop all BPXASs to allow JES to
come
down. If you trigger by the BPXAS has ended
Not from or about IBM, per se. But I hope that general computing
information might be of interest to most of us.
http://www.tgdaily.com/content/view/34506/113/
This is about resistor based memory. What is neat is that it is
supposed to be non-volitale, faster than DRAM, take less power than
If you will be installing a z9 BC, and you are running CICS/ESA 4.1 and you
are using APPC, you may want to ask IBM about AN5718I, at least that was
the name on the usermod they sent.
Initial testing seems to indicate that this corrected both the APPC and CICS
Windows problems we had when
Wouldn't is be sufficient to run the keep BPXAS alive
program periodically, say every 15 minutes? The new childs
would use idle BPXASs and WLM would create new ones if the
overall system load permits this.
Well, I don't want to unnecessarily create new BPXASs when
the system is already busy
-Original Message-
From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On
Behalf Of Ted MacNEIL
Sent: Tuesday, October 23, 2007 5:26 PM
To: IBM-MAIN@BAMA.UA.EDU
Subject: Re: tso racf
That way you know the user was safely tucked into ISPF.
Why do we care?
What problem are we
From the article Phil linked to:
As a rather poignant footnote, the Jersey Journal notes that the
Millars' house is fully decked out in anticipation of Halloween,
complete with a tiny plastic tombstone on their front lawn. Tony
Millar said the family will consider dedicating the tombstone to the
Actually it took half the campus down!
Darren
On Wed, 24 Oct 2007, Phil Payne wrote:
ISTR one of their number taking hte list down a while back ...
http://www.theregister.co.uk/2007/10/24/kamikaze_squirrel/
--
Phil Payne
http://www.isham-research.co.uk
+44 7833 654 800
Ted MacNEIL wrote:
That way you know the user was safely tucked into ISPF.
Why do we care?
What problem are we solving by restricting access to the READY prompt?
I've already asked this question; received no response.
Perhaps the users targeted for this behavior don't know how to
I just had a minor flash of insight which I thought might be of interest
to people. Suppose you have multiple z/OS systems. Also suppose that you
share the RACF database. And suppose you want to have a __different__
logon proc for people, depending on which system they log on to. Now,
RACF only
Peter, et. al.
My results:
APF List Attribute Dataset Attribute Migration Result
SMS managed SMS managedSuccessful
SMS managed Non-SMS managedSuccessful
Non-SMS managed Non-SMS managedFailed
Non-SMS managed
When I finally lost patience with the jes2 is stuck
messages I implemented the following:
f bpxoinit,shutdown=forkinit as one of the very first thing
- I think that disables new bpxas's from being created.
No, this command only asks *idle* BPXASs to terminate immediately.
You can happily start
Cloink wrote:
My company is soon to move away from something called Roscoe which has
a programming facility similar to ISPF/CLIST/REXX in TSO.
In Roscoe, 'on the fly'/dynamic panel definitions can be created to
display output and/or accept user input; these are especially useful
when
-Original Message-
From: IBM Mainframe Discussion List
[mailto:[EMAIL PROTECTED] On Behalf Of Hunkeler Peter (KIUK 3)
Sent: Wednesday, October 24, 2007 8:44 AM
To: IBM-MAIN@BAMA.UA.EDU
Subject: Re: Outsmarting WLM
Wouldn't is be sufficient to run the keep BPXAS alive
program
Staller, Allan wrote:
APF List Attribute Dataset Attribute Migration Result
SMS managed SMS managedSuccessful ===!!!
SMS managed Non-SMS managedSuccessful
Non-SMS managed Non-SMS managedFailed
Non-SMS managed
Excellent idea, we use the JCL include to set up the joblibs and job
variables that are global to every job of our applications.
Sounds like just a different application of the same principle.
Darren
-Original Message-
From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On
-Original Message-
From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On
Behalf Of Ed Gould
Sent: Tuesday, October 23, 2007 6:29 PM
To: IBM-MAIN@BAMA.UA.EDU
Subject: Re: VARY too many devices offline
On Oct 23, 2007, at 3:17 AM, Zaromil Tisler wrote:
On Tue, 23 Oct 2007
-snip---
I had a problem with IPLing I think a year behind the current date.
This was running under VM. VM was IPL'd with the wrong date, passing
the date along to each guest. We had 5 DOS guests, one MVS guest, and
one VS1 guest at the time.
On Wed, 24 Oct 2007 11:54:35 -0500, McKown, John
[EMAIL PROTECTED] wrote:
I just had a minor flash of insight which I thought might be of interest
to people. Suppose you have multiple z/OS systems. Also suppose that you
share the RACF database. And suppose you want to have a __different__
logon
In [EMAIL PROTECTED], on 10/21/2007
at 05:07 AM, Mark Zelden [EMAIL PROTECTED] said:
CH MCAT N
Interesting: according to the documentation that shouldn't work, although
it did.
Thanks.
--
Shmuel (Seymour J.) Metz, SysProg and JOAT
ISO position; see
One easy way that I've used over the years that two different very large
sites is a generic logon proc that invokes a startup exec. The startup
exec can do lots of things like testing which lpar you're on and
customizing the libraries allocated based on that. Then to further
customize things
For me it works I get the expected RC=99 RSN=14 for a HMIG.
However I still believe such a condition (SMS-Managed, APF with SMS and
migrated)
shouldn't throw an expection for this healthcheck
Roland
-Original Message-
From: IBM Mainframe Discussion List
[mailto:[EMAIL PROTECTED] On
I think the default exspin order is spin-abend-term generating
abend071 rsn10, 30, 20. Second pass through exspin recovery
is allowed to retry, third pass through not. That usually takes
care of all spin loops, unless they were caused by something
that makes the component that is *validly*
On Wed, 2007-10-24 at 09:55 -0700, Edward Jaffe wrote:
Perhaps the users targeted for this behavior don't know how to type
LOGOFF at the READY prompt.
Harumph. MY users generally just click the little 'X' on the top right
corner of the emulator screen and let LOSTERM sort it out. Makes me
Shmuel Metz , Seymour J. wrote:
In [EMAIL PROTECTED], on 10/21/2007
at 05:07 AM, Mark Zelden [EMAIL PROTECTED] said:
CH MCAT N
Interesting: according to the documentation that shouldn't work, although
it did.
Thanks.
What documentation are you looking at? I think Appendix A.7 in
Since DISABLED applies to only I/O and External interrupts, if you dont want
to used Restart interrupt(for whatever mysterious reason), I am curious If I
can induce a Machine check without actually messing with the pysical
machine..:)
Also more thoughts on Dispatcher..
In the old 360 days,
-Original Message-
From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On
Behalf Of Santosh Kandi
Sent: Wednesday, October 24, 2007 1:52 PM
To: IBM-MAIN@BAMA.UA.EDU
Subject: Re: About dispatching process
Since DISABLED applies to only I/O and External interrupts, if you
dont
On Wed, 24 Oct 2007 11:40:31 -0500, McKown, John
[EMAIL PROTECTED] wrote:
...
http://www.tgdaily.com/content/view/34506/113/
This is about resistor based memory. What is neat is that it is
supposed to be non-volitale, faster than DRAM, take less power than
DRAM, and be able to code multiple
- Original Message -
From: Cloink [EMAIL PROTECTED]
Newsgroups: bit.listserv.ibm-main
Sent: Wednesday, October 24, 2007 7:24 AM
Subject: Dynamic ISPF panels?
My company is soon to move away from something called Roscoe which has
a programming facility similar to ISPF/CLIST/REXX in
On Wed, 24 Oct 2007 14:45:53 -0400, John Eells [EMAIL PROTECTED] wrote:
* Exclude any data sets that you do not want to change (through
line command X) and press Enter.
When I posted my response I wrote: To get the list down to just the
CPAC dsns... list by LVOLUME
I forgot you do the
* Scope of TJX data breach doubles: 94M cards now said to be affected
http://cwflyris.computerworld.com/t/2246270/20890881/84579/2/
--
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to [EMAIL
Hi George,
On Sat, 20 Oct 2007 08:29:03 -0500, George Dranes [EMAIL PROTECTED]
wrote:
We have a 3494 ATL with 3590 drives. When we initially set this up, the
Magstar Redbook I used said to leave the volume count for the data class as
1 since it is not used for tape. Yet I see IBM documentation
Does anyone know how best to create dynamic panel definitions?Two
ideas. Scrollable menus, or dynamic areas.
Or scrollable dynamic areas.:-)
To see an example, click the link below.
Dave SaltSee the new SimpList(tm) rollover image
On Wed, 24 Oct 2007 09:06:56 -0300, Shmuel Metz (Seymour J.)
[EMAIL PROTECTED] wrote:
In [EMAIL PROTECTED], on 10/21/2007
at 05:07 AM, Mark Zelden [EMAIL PROTECTED] said:
CH MCAT N
Interesting: according to the documentation that shouldn't work, although
it did.
Thanks.
Which
The following message is a courtesy copy of an article
that has been posted to
comp.sys.ibm.sys3x.misc,alt.folklore.computers,bit.listserv.ibm-main as well.
[EMAIL PROTECTED] writes:
I could read ASCII from a paper tape. Took me a while. :-)
previous post in this thread:
On Tue, 23 Oct 2007 17:04:56 -0700, George Fogg wrote:
BTW, does the ISPF exits run authorized? I read the manual but not quite
sure if they do.
George,
It doesn't matter (much) whether the exits are authorized or not if all you do
is issue a WTO to alert your automation package that it is
On Tue, 23 Oct 2007 20:11:33 -0500 Tom Schmidt [EMAIL PROTECTED]
wrote:
:I well understood what PCF's goal was, but my point was that it was FAR too
:easy to circumvent the command 'control' portion. As long as you (or a
friend)
:had program access to ANY library that you could execute from
This one has me totally stumped. The POPs manual in chapter 5 explains the
mechanism used for PC number translation. I've got a z/os 1.6 system with DB2
V8 up. On my machine, bit 44 of control reg 0 is off, so I believe the PC
translation process is the same as it has always been. I use the
On Tue, 23 Oct 2007 17:04:56 -0700, George Fogg wrote:
BTW, does the ISPF exits run authorized? I read the manual but not quite
sure if they do.
George,
It doesn't matter (much) whether the exits are authorized or not if all you do
is issue a WTO to alert your automation package that it is
But one possible cautionary note that I would want to check on before
saying the VTOCIX and VVDS names are immaterial:
If you do a DFDSS COPY with DUMPCONDITIONING to another online DASD
volume (which preserves the volser of the target so it can stay online
and then be source of a DUMP),
On Wed, 24 Oct 2007 22:38:03 -0400, Binyamin Dissen wrote:
What PCF did well was protect APF authorized CPs.
You could not circumvent PCF unless you had the ability to write into an APF
library, which if you can - you can do whatever you want anyway.
Oh yes I could (and did)! I could run
Now I think Dispatcher runs of what is called a WEB(Work element
block), although I suspect it is still looks at WCF to determine
if it wants to dipstach the TCB.
I am curious when was the last time they changed the Dispatcher
code!!!
The last major change was done with MVS/ESA V5, but I'm
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