On Thu, 2 Sep 2021 02:41:09 +0100, CM Poncelet wrote:
>(a) I could not possibly 'bet', as I never gamble.
>
Neither does Peter.
>On 01/09/2021 13:45, Peter Relson wrote:
>> CM Poncelet wrote
>>
>> The LP (load point) addresses of LMODs always end with x'000' (i.e.
>> page-aligned)
>>
>>
>>
On Thu, 2 Sep 2021 04:47:52 +, Farley, Peter x23353 wrote:
>
>By practical experimentation, I found that z/OS Unix awk uses fopen().
>
How can you be sure? You haven't seen the source code.
>I'll bet the cat utility does too but that cp uses open().
>
From the UNIX Command Ref. for "cp":
But ONLY if the utility is coded to use fopen() and not open(); fopen()
supports the DD:ddname syntax, open() does not.
By practical experimentation, I found that z/OS Unix awk uses fopen(). I'll
bet the cat utility does too but that cp uses open().
Peter
-Original Message-
From:
(a) I could not possibly 'bet', as I never gamble.
(b) I would not expect e.g. IEFBR14 to be page-aligned (regardless of
its being in the LPA.)
(c) I would expect there to be 'constraints' on what-sized LMODs are
page-aligned, as in "not if less than 1K or 2K or than 4K" or whatever else.
(d) I
On Wed, 1 Sep 2021 21:53:35 +0200, Bernd Oppolzer wrote:
>Many thanks for that ... I know of very large installations which
>depend heavily on being able to modify RENT programs, and loading them
>always into write protected storage would break their systems.
>
I recognize that the Subject: says
Carlos,
Open a Broadcom support ticket and we will get you a new EARL report that is
similar to the CA 1 TMETPUSE EARL report. It will give you the size as
written by the application and the size as stored in cache (after IDRC
compression). Haven't published it yet, sorry.
Russell Witt
Broadcom
The SP252 processing only depends on the concatenatation being APF, not on the
J/S being authorized.
I can imagine all sorts of scenarios where an incorrect attribute is not
noticed for years, then causes an outage. That;s one of the reasons for code
and design reviews.
--
Shmuel (Seymour
Many thanks for that ... I know of very large installations which
depend heavily on being able to modify RENT programs, and loading them
always into write protected storage would break their systems.
In fact, I am talking of a very large customer of mine.
What they do: they load the EP point of
You are further illustrating my point. Your
astonishment was due to your inexperience.
The use of REFR for storage error recovery was only
in predecessors of MVS, and that was before my time
at IBM. I only know about that because of Shmuel's
posts about it.
Although it was before my
I would argue that cat should not document it, any more than the COBOL compiler
doc should cover all the possible permutations of //SYSPUNCH DD ... They should
reference the C library documentation and say "any of those formats."
I agree on the merging to DCB attributes.
Charles
> My employer's VPN disabled all other network connections (is this typical?)
Yes. Sometimes it is a checkbox in the client configuration that the user can
change if sufficiently cognizant.
Charles
-Original Message-
From: IBM Mainframe Discussion List
On Wed, 1 Sep 2021 13:25:03 -0400, Jim Mulder wrote:
>...
> As to the Astonishment in POLA, I would
>suggest that astonishment is relative to the
>experience of the beholder, ...
>
The oldest memories are the sharpest. I remember vividly my
astonishment as an MVS/370 novice when I
In a separate post, I have said a little
more about rounding and alignment cases for
program objects.
As to the Astonishment in POLA, I would
suggest that astonishment is relative to the
experience of the beholder, as illustrated here:
SPOCK: Captain, the Intrepid would have done all
Some considerations for conversion to
program objects are documented here:
https://www.ibm.com/docs/en/zos/2.4.0?topic=objects-what-should-be-converted-program
The cases where the program object loader
rounds up the size to a 4K multiple and forces 4K
alignment (without alignment being
On Wed, 1 Sep 2021 09:34:07 -0700, Charles Mills wrote:
>The DD:ddname format for a "legacy" dataset is a supported and documented
>feature of the C runtime library (even if not specifically for cat).
>
The "cat" developers are understandably unwilling to document and
support that behavior of
// JOB (Y),RPINION,CLASS=2,MSGCLASS=O, JOB17827
// NOTIFY=,COND=(0,LT),REGION=128M
IEFC653I SUBSTITUTION JCL -
On the step completion message, what are your memory usage?
On Wed, Sep 1, 2021 at 10:09 AM Steve Smith wrote:
>
> There's no reason to concatenate the unload files, just do two COPY
> operations (which can be in the same step, in case that's not obvious).
>
> REGION=32M, really? This isn't
The DD:ddname format for a "legacy" dataset is a supported and documented
feature of the C runtime library (even if not specifically for cat).
Charles
-Original Message-
From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf
Of Paul Gilmartin
Sent: Tuesday,
Or more simply, if user X has the ability to read with decryption a particular
encrypted dataset, then s/he can do anything s/he likes with it: download it to
a PC, print it out, e-mail it, XMIT it, ...
It would be nice if XMIT had some sort of "hey wait a minute -- that dataset
is/was
On Wed, 1 Sep 2021 15:49:34 +, Mike Wawiorko wrote:
>Secure NJE with AT-TLS?
>
>But you do have a point that XMIT might somehow check that to make it
>all-pervasive encryption.
>
Pervasive encryption is pervasively too transparent. Do similar concerns apply
to
FTP, IND$FILE, VPN, VNC,
Colin,
Yes, you have found that it is easy to "de-classify" the data. This is why data
set encryption requires careful design and understanding of the use of the
data.
Anyone copying encrypted data they have READ access to will potentially expose
the data unless you take steps to avoid it.
IIRC your installation needs to allow this option, if allowed you
should be prompted for the encipher option, this option is used on the
AMS repro command - via TSO HELP
I don't understand you said you did the XMIT on an encrypted dataset but
how was it sent unencrypted?
I wonder why this
Secure NJE with AT-TLS?
But you do have a point that XMIT might somehow check that to make it
all-pervasive encryption.
Mike Wawiorko
-Original Message-
From: IBM Mainframe Discussion List On Behalf Of
Colin Paice
Sent: 01 September 2021 16:43
To: IBM-MAIN@LISTSERV.UA.EDU
I've set up encryption for some data sets.
I did an *XMIT a.a dsn(...) *of an encrypted data set, and it was sent
unencrypted so I could to a TSO receive and read it with no encryption
This means that your datasets on the local z/OS are very secure - but
people could unwittingly send them out in
I've never selectively included that many member, but maybe you can
exclude members that you do not want to copy?
are you using a copymod statement ?
maybe specify CMWA=8190K and a region size greater that 32M?
size is another parm option SIZE=nK or nM
Carmen
On 9/1/2021 10:30 AM, PINION,
Indeed I did. And, it had no effect. As for SAS's comment for using
REGION=1000M, while I didn't go that high, increasing REGION on the job
statement had no effect either.
-Original Message-
From: IBM Mainframe Discussion List On Behalf Of
Lennie Dymoke-Bradshaw
Sent: Wednesday,
Have you looked at using the spill data sets on SYSUT3 and SYSUT4?
Lennie Dymoke-Bradshaw
https://rsclweb.com
Dance like no one is watching. Encrypt like everyone is.
-Original Message-
From: IBM Mainframe Discussion List On Behalf Of
PINION, RICHARD W.
Sent: 01 September 2021 15:54
There's no reason to concatenate the unload files, just do two COPY
operations (which can be in the same step, in case that's not obvious).
REGION=32M, really? This isn't 1990. How about 1000M?
sas
On Wed, Sep 1, 2021 at 10:54 AM PINION, RICHARD W.
wrote:
> We are running z/OS 2.2 on z15.
On Wed, 1 Sep 2021 01:44:44 -0400, Jim Mulder wrote:
> As we have already discussed, program objects do get
>rounded up to 4k multiples. Load modules do not.
>...
On Mon, 30 Aug 2021 18:11:07 -0400, Gord Tomlin wrote:
>On 2021-08-30 17:28 PM, Charles Mills wrote:
>> Seriously, I agree
We are running z/OS 2.2 on z15. I am having a problem selectively unloading a
very large
PDS/E, over 2,000,000 tracks, and with several thousand members. The SYSIN to
IEBCOPY
has 174,000 SELECT statements. We are getting
IEB1011E AVAILABLE STORAGE (4K) IS TOO SMALL. ADD 7779K MORE BYTES TO
>Tek bought the company for $100 million, sold it 2 years later for $5
million.
Make it up in volume?
--
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to lists...@listserv.ua.edu with the message:
I worked for Tektronix in the '80s, and we successfully did a POC of a circuit
board design system (CBDS). Four users on 3277s would take a 3083 to its knees
- intensely CPU-bound. CBDS reduced a sample 5X7 board from 7 layers to 4,
including surface mounts and buried vias.
We got shut down
On Wed, 1 Sep 2021 01:44:44 -0400, Jim Mulder wrote:
> As we have already discussed, program objects do get
>rounded up to 4k multiples. Load modules do not.
>
So for program objects REFRPROT follows POLA.
∎
Both ends rounded?
-- gil
No. That is not and has never been true; small load modules are not page
aligned. The devil is in the details.
BTW, MOD is an SMP term; what fetch deals with in load modules is csects and
enty points.
--
Shmuel (Seymour J.) Metz
http://mason.gmu.edu/~smetz3
Sounds like 3277 GA, written up in "Architecture of the IBM 3277 Graphics
Attachment", IBM Systems Journal ( Volume: 19, Issue: 3, 1980) , pp. 331-344
and in GA33-3039-1, 3277 DISPLAY STATION, GRAPHICS ATTACHMENT RPQ 7H0284,
CUSTOM FEATURE DESCRIPTION
--
Shmuel (Seymour J.) Metz
On Tue, 31 Aug 2021 21:17:09 -0700, Tom Brennan wrote:
>O/T - I was a user on one of those Tektronix displays from about 1979 to
>1982, but no 3277 or mainframe. Mine was connected to a DEC computer,
>all put together by a company called ComputerVision.
>
>This pic shows almost exactly what I
The original 4341 had ECPS:VM, ECPS:VS1 and ECPS:VSE. The 4341-2 added ECPS:MVS.
--
Shmuel (Seymour J.) Metz
http://mason.gmu.edu/~smetz3
From: IBM Mainframe Discussion List [IBM-MAIN@LISTSERV.UA.EDU] on behalf of
Mike Wawiorko
CM Poncelet wrote
The LP (load point) addresses of LMODs always end with x'000' (i.e.
page-aligned)
wanna bet?
If this is what you have seen in all the dumps you have looked at, then
you need to look at more dumps.
Peter Relson
z/OS Core Technology Design
Try this link in the IBM Docs:
https://www.ibm.com/docs/en/search/.ws?scope=SSEQ5Y_14.0.0
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That's my recollection. Wiki has this that to me says either VM or VS1 were
options on the 4341.
The 4341 Introduced the Extended Control Program Support:VM (ECPS:VM) and
Extended Control Program Support:VS1 (ECPS:VS1) features.
I was responsible for the EP in the 3704. I go by what I was told
Hi Mike,
You ran VS1 native? ... If yes, what was your interactive system, CRJE?
(I ran VM/SP with VS1 guests.)
Regards,
David
On 2021-09-01 04:05, Mike Wawiorko wrote:
My distant memory is:
CADAM/CATIA running Finite Element Analysis
OS/VS1
4341
3704 running EP
Some comms protocol I forget
Also O/T but at UCL we had these same displays connected to GEC 4000
machines. Seemed futuristic at the time. :-)
(And we deemed it exotic that these Computer Centre GEC machines were
connected to Computer Science Department PDP 11s via Cambridge. Both sets
of machines were, of course, in
No, I'm nowhere near as unique as I like to think I am. :-(
The XDC David Cole
dbc...@gmail.com (personal)
dbc...@colesoft.com (business)
540-456-6518 (cell)
At 8/31/2021 02:08 PM, Jim Mulder wrote:
No. It is a popular name.
Jim Mulder z/OS Diagnosis, Design, Development, Test IBM
My distant memory is:
CADAM/CATIA running Finite Element Analysis
OS/VS1
4341
3704 running EP
Some comms protocol I forget
Tektronix graphics terminal
Tried to make it run through an NCP as non-SNA start stop with either NPSI or
NTO (memory fails me) but no success.
No 3270 involved - neither
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