On 19/05/2021 8:14 am, Andrew Rowley wrote:
That's unfortunate. It's the same where I work. We run a enterprise
class z15 and the zIIP normalized times in the SMF30s match GCP
times. What you really want is an image where you can compare code
running on a zIIP to a sub-capacity GCP
as that's
[Default] On 18 May 2021 17:15:54 -0700, in bit.listserv.ibm-main
ponce...@bcs.org.uk (CM Poncelet) wrote:
>With all due respect, anyone who has difficulty coding JCL COND=
>statements should consider *not* working with IBM mainframe systems.
as someone who had to play cute games with COND= I
On Wed, 19 May 2021 01:19:01 +0100, CM Poncelet wrote:
>With all due respect, anyone who has difficulty coding JCL COND=
>statements should consider *not* working with IBM mainframe systems.
>
I've long believed the convention was invented by an Assembler programmer
accustomed to branching
Once I learned of the IF/THEN statements for
JCL I never used COND= again. IF/THEN is much
easier to use and to explain to new people.
I have seen many people code COND statements
incorrectly because they did not acually
understand how they worked.
-Original Message-
From: IBM
Yes, we (TINW) understand COND=. That doesn't mean that we like it, or should
like it, nor does it negate the fact that IF is an improvement. I certainly
understand the pre-SMS of DISP=NEW for a DASD dataset without a SPACE=, but
that doesn't prevent me from describing it with loathing and
On Mon, 17 May 2021 19:30:42 +, Chris Hoelscher wrote:
>Aladdin - he was an Arabic character, wasn't he!!!
>
No. Arabian.
I found a reference that mentions both UTF-8 (IBM-1208) and CSSMTP,
but not exactly together:
With all due respect, anyone who has difficulty coding JCL COND=
statements should consider *not* working with IBM mainframe systems.
All boolean conditional execution steps can be handled using only COND=
statements. I submitted a paper on this & it was published in
"Computing" in 1989. I would
On 18/05/2021 9:21 pm, David Crayford wrote:
That's unfortunate. It's the same where I work. We run a enterprise
class z15 and the zIIP normalized times in the SMF30s match GCP times.
What you really want is an image where you can compare code running on
a zIIP to a sub-capacity GCP
as that's
> - Tape drives have pretty much gone away. They live on as virtual,
> emulated-on-DASD tape drives.
Remote copy is fine for, e.g., hot backups, but when you need to retain old
versions of your data back a long stretch of time, tape is still an inexpensive
solution. I suspect that there will
Was that OS/360 R14?
Symbols in sysin data streams, of course, is another and much later story.
--
Shmuel (Seymour J.) Metz
http://mason.gmu.edu/~smetz3
From: IBM Mainframe Discussion List [IBM-MAIN@LISTSERV.UA.EDU] on behalf of
Steve Horein
Mike,
IMHO you talk about EAV in DS8000, but not about EAV.
EAV Volume (*) can be up to ~1TB big, but chunk size of 1113 cylinders
is for DS8000 family, AFAIK.
Space above 65520 cyl. is called EAS and from z/OS point of view the
smallest chunk is 21 cylinders.
So, you can allocate 1 track
Volumes have gotten bigger. The first 64K Cylinders (Mod 54) remain
the same, but EAV space past that can be added in 1113 cylinder chunks
to a multipile of 1113 cylinders. 250GB first step then 1000GB (or
so).
On Mon, May 17, 2021 at 8:42 PM Steve Estle wrote:
>
> Hello Everyone in Mainframe
On Tue, 18 May 2021 16:28:22 +, Chris Hoelscher wrote:
>From my limited interaction - it may be browser-dependent
>I seem to recall IE does not play well - EDGE or CHROME may be required (but I
>am no expert on this)
>
Dear IBM: https://anybrowser.org/campaign/
-- gil
On 5/18/2021 9:35 AM, Steve Smith wrote:
A correction: You can allocate any size of memory above the bar; for small
areas (up to 64KB, iirc) you'd use IARST64. This is a version of cell pool
services that handles the set-up and management of the cell pool for you.
IARCP64 is the 64-bit cell
A correction: You can allocate any size of memory above the bar; for small
areas (up to 64KB, iirc) you'd use IARST64. This is a version of cell pool
services that handles the set-up and management of the cell pool for you.
So it should be much more efficient for getting & freeing lots of pieces
From my limited interaction - it may be browser-dependent
I seem to recall IE does not play well - EDGE or CHROME may be required (but I
am no expert on this)
Chris Hoelscher
Lead Sys DBA
IBM Global Technical Services on assignmemt to Humana Inc.
T 502.476.2538 or 502.407.7266
-Original
Slightly thread-surrecting this topic -
Don't attempt to enter anything in the search bar before the left frame
manifests itself, otherwise your search terms disappear!
I was surprised at the colorful language coming from me after that happened.
On Mon, Apr 5, 2021 at 3:03 PM esst...@juno.com
On Mon, 17 May 2021 19:42:06 -0500, Joe Monk wrote:
>In the IBM vm environment on z/arch under SIE, what is the correct response
>to STFLE for a non-enabled or present facility? Zero or NULL?
>
>If a person were to try to do RRBM, should facility bit 66 be enabled or
>what?
In response to your
On Tue, 18 May 2021 07:46:54 -0500, Joe Monk wrote:
>Sorry, I meant the correct response from an STFLE, not to.
>
>So you are saying that the hardware should return '0' is the facility is
>not enabled, and '1' if it is.
That's how STLFE, works, yes (see Principles of Operation), but I don't see
To be honest last time when I was installing z/OS and other products in
ServerPac, one of the products insisted to use HFS because of size. To
explain: until recently ZFS had to be limited to 4GB or be SMS-managed
and Extended Format (and then EA).
While it would be possible to change it later
> HFS is rapidly disappearing if not gone in most installations
But replaced by zFS, which to the casual end user is pretty much the same
thing: "UNIX files on z/OS."
I didn't want Steve to get the impression that UNIX files had gone away.
+1 to what Timothy says about bytes: particularly if an
Another thing that no one has mentioned, other than my saying "security has
gotten big":
Passwords have changed. They can now potentially be mixed case, and can include
additional "special" symbols .<+|&!*-%_>?:=. They can even be longer than 8
characters -- IBM calls that Pass Phrases. "How
A bit more from me
The IBM Learning System is also available if you'd like to go grab a free
z/OS account to "kick some tires" (and with no service level commitment).
The 2020-2021 "Master the Mainframe" contest has ended in terms of prizes
and awards, but you can still try the contest
Yeah, and IF/THEN is slightly better than COND=
Also symbols in SYSIN data.
Charles
-Original Message-
From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf
Of Steve Horein
Sent: Tuesday, May 18, 2021 5:35 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: Best
On Fri, 14 May 2021 13:03:17 -0400, Matt Hogstrom wrote:
>It takes z/OSMF about an hour to fully initialize on my ZD … same behavior
>(lots of SIOs and CPU) IBM says its fixing this but its been quite a while.
>Its Java related.
>
>Matt Hogstrom
>m...@hogstrom.org
Wow, that's a long time. I
Sorry, I meant the correct response from an STFLE, not to.
So you are saying that the hardware should return '0' is the facility is
not enabled, and '1' if it is.
Joe
On Tue, May 18, 2021 at 7:09 AM Peter Relson wrote:
> "NULL" is not an architectural concept.
>
> I don't even know what a
I would argue JCL got better when symbols were allowed! :-)
https://www.ibm.com/docs/en/zos/2.4.0?topic=es-symlist-parameter
On Mon, May 17, 2021 at 10:46 PM Charles Mills wrote:
> Steve, let me wade in here and suggest some big picture. I think SHARE and
> such is great for the details.
>
>
"NULL" is not an architectural concept.
I don't even know what a "response" to an instruction is.
The correct result for an instruction is whatever the principles of
operation says the result is.
Some facility bits are passed through to the guest. Others are provided to
the guest only if the
Flagship? I thought that was Linux on Z.
Why doesn't z/OS have, e.g., ANSI REXX, NTP, OOREXX, various compilers
ubiquitous in the *ix world? Why does STP cost extra?
--
Shmuel (Seymour J.) Metz
http://mason.gmu.edu/~smetz3
From: IBM Mainframe
On 18/05/2021 6:35 pm, Andrew Rowley wrote:
On 18/05/2021 5:21 pm, David Crayford wrote:
Do they have a zIIP on the RDP system?
Yes, although the regular CPs are the same speed. Having the zIIP
means I can get figures for zIIP, CP and zIIP on CP.
That's unfortunate. It's the same where I
On 18/05/2021 5:21 pm, David Crayford wrote:
Do they have a zIIP on the RDP system?
Yes, although the regular CPs are the same speed. Having the zIIP means
I can get figures for zIIP, CP and zIIP on CP.
Are you talking about CMF 110 records? If so we've both worked on
similar stuff. One of
Steve,
Nothing changed since 2001.
We still use punched cards and reel tapes.
We love our 24-bit addressing and avoid 31-bit or 64-bit.
OK, there were some changes:
We migrated our memory from core to TTL.
Our Bus channels rusted away, so we moved to fiber optic.
Some of us started using
Sorry about the typos. OpenJDK Flight Record was GA from Java 9 onwards.
So fingers crossed we will see that when the Java 11 is finally
available on z/OS.
On 18/05/2021 5:12 pm, David Crayford wrote:
Unfortunately, othing has changed :( z/OS only partially supports the
JVMTI implementation.
On 18/05/2021 1:52 am, Kirk Wolf wrote:
- good low-overhead (sampling) profiling tools for the z/OS JVM don't
exist (maybe this has changed?). IMO this was a huge barrier for
Java on z/OS.
Unfortunately, othing has changed :( z/OS only partially supports the
JVMTI implementation.
If not already mentioned, see redbooks series ABCs of IBM z/OS System
Programming (13 volumes). Link to vol-1:
https://www.redbooks.ibm.com/abstracts/sg246981.html?Open
ITschak Mugzach
*|** IronSphere Platform* *|* *Information Security Continuous Monitoring
for z/OS, x/Linux & IBM I **| z/VM
Others have mentioned a number of resources. One of the best resources for
details are the IBM Redbooks for Z.
For a high-level summary of functions and features for different generations of
z Systems, if can you still get these are the S/390 Reference Guides (I
authored these during the
Charles Mills wrote:
>- Everything is of course bigger. Z hardware goes up to
>what? 4TB real? Someone will correct me if that is wrong.
The IBM z15 T01 and LinuxONE III LT1 models can have up to 40TB of real,
customer usable memory per machine. Each LPAR can have up to 16TB, and
each z/OS
On 18/05/2021 1:32 pm, Andrew Rowley wrote:
On 16/05/2021 12:59 pm, David Crayford wrote:
And there is a good chance that you could introduce unacceptable
software charges. I've worked on performance reporting tools for over
two decades and in my experience customers measure everything, as
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