zHPF has finally enabled FICON to catch up to the (high) performance of the
underlying fibre channel (which non-z uses), and still keep the benefits of
FICON -- which are substantial. It isn't just performance. For z15 IO is
ROI competitive with best of breed cloud servers, and beats them with th
Keep in mind that what IBM is discussing is throughput rather than the duration
of a single I/O. A typical installation will be doing I/O to a lot of DASD
volumes concurrently. When you have a lot of concurrent I/O requests on the
same channel, the effect of, e.g., rotational delay, cache miss,
How does that compare to the throughput for FCP?
--
Shmuel (Seymour J.) Metz
http://mason.gmu.edu/~smetz3
From: IBM Mainframe Discussion List [IBM-MAIN@LISTSERV.UA.EDU] on behalf of
Attila Fogarasi [fogar...@gmail.com]
Sent: Wednesday, December 8, 2021 1
And a very Merry Christmas to all.
Thanks,
…….Cameron
Vacation Alert: I will be OOO from December 9th 2021 though to January 4th 2022
inclusive.
From: IBM Mainframe Discussion List On Behalf Of Joe
Monk
Sent: Wednesday, December 8, 2021 10:31 PM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: [Ext
Ever since the advent of the 2880, there has been significant overlap even on a
single channel. I don't find 950K/s to be at all surprising.
--
Shmuel (Seymour J.) Metz
http://mason.gmu.edu/~smetz3
From: IBM Mainframe Discussion List [IBM-MAIN@LISTSERV.U
Keep in mind this thread is about AWS (the magnificent) having an outage, that
if it happened in a mainframe shop, would be considered terrible and
unacceptable. In fact, AWS (and Azure/Google clouds) are down fairly often.
There are people on the internet who keep track of these things. Wherea
>You said: "... Did the world not exist before 1960s?
Did people automatically die before 1960s because they didn't have MF?
..."
Nobody died because of computer failure in the times before computers.
Nobody died because of gun in the times before guns existed.
Nobody died in airplane crash be
Hi Clark,
It appears as though we actually are getting close to the 1 microsecond value.
Of course I can't find it today but yesterday when I saw the *ahem* discussion
between Seymour and Bill, I went searching because I didn't think the industry
was anywhere near microsecond speeds. An artic
https://www.computerworld.com/article/3644370/aws-outage-hit-collaboration-vendors-highlights-risk-of-cloud-based-tools.html
Regards,
Mark Regan, K8MTR, EN80tg
CTO1 USNR-Retired (1969-1979 active; 1979-1991, reserves; including two
years with the Ohio Air National Guard)
Nationwide Insurance, Ret
On 12/8/2021 5:40 AM, Doug wrote:
I have watched this thread, and there is simply one thing most of us
are missing.
This is a MF forum. For years, we have been subjected to "oh using the
(insert new technology) is so much better than these old obsolete
mainframes." And we have universally warne
Hi all,
I would like advice because i have a situation where i need to check a bit of a
storage area, usinganother storage area as a pattern and not an immediate.
I have something like this :
A DC X'1C'B DC X'08'
TM A,x'08' JO X
But instead of using x'08',
XC
OREXXMan
Would you rather pass data in move mode (*nix piping) or locate mode
(Pipes) or via disk (JCL)? Why do you think you rarely see *nix commands
with more than a dozen filters, while Pipelines specifications are commonly
over 100s of stages, and 1000s of stages are not uncommon.
REXX is
Opps: NC
OREXXMan
Would you rather pass data in move mode (*nix piping) or locate mode
(Pipes) or via disk (JCL)? Why do you think you rarely see *nix commands
with more than a dozen filters, while Pipelines specifications are commonly
over 100s of stages, and 1000s of stages are not uncommon.
On Thu, 9 Dec 2021 21:10:38 +, Ituriel do Neto wrote:
>
>I would like advice because i have a situation where i need to check a bit of
>a storage area, usinganother storage area as a pattern and not an immediate.
>
>I have something like this :
>A DC X'1C'B DC X'08'
>
On Thu, 9 Dec 2021 15:16:40 -0600, Hobart Spitz wrote:
>Opps: NC
>
>OREXXMan
>Would you rather pass data in move mode (*nix piping) or locate mode
>(Pipes) or via disk (JCL)? Why do you think you rarely see *nix commands
>with more than a dozen filters, while Pipelines specifications are common
ICRn,B(No need to clear first)
EXRn,EXTM
JOX
...
EXTM TMA,0
Charles
-Original Message-
From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf
Of Ituriel do Neto
Sent: Thursday, December 9, 2021 1:11 PM
To: IBM-M
Consider something like this...
LLC R1,
...
TM A,*-*
EXRL R1,*-4
Dave Cole
On Thu, Dec 9, 2021 at 4:10 PM Ituriel do Neto <
03427ec2837d-dmarc-requ...@listserv.ua.edu> wrote:
> Hi all,
> I would like advice because i have a situation where i need to check a
Storage area:
ADC X'1C'
BDC X'08'
TM1 TM A,0
. . . . .
Instruction sequence:
ICR15,B
EX R15,TM1
* HERE YOU WOULD BRANCH BASED ON TM RESULTS
HTH
Peter
-Original Message-
From: IBM Mainframe Discussion List On Behalf Of
Ituriel do Neto
Sen
Hi,
Would this work?
MVI B,X'08'
MVI A,X'1C'
TMA,B
BOLABEL
A DS X
B DS X
Joe
On Thu, Dec 9, 2021 at 3:11 PM Ituriel do Neto <
03427ec2837d-dmarc-requ...@listserv.ua.edu> wrote:
> Hi all,
> I would like advice because i have a situati
TM A,B as you have written it below is not valid and would not assemble without
error. TM takes an immediate 8-bit "mask," not the name (address) of a
variable. That is the OP's plaint: he wants a variable mask.
The best (not only) answer is an executed TM, as several have posted.
Charles
---
I do this occasionally (and in Azure):
https://aws.amazon.com/blogs/apn/deploying-ibm-mainframe-z-os-on-aws-with-ibm-zd-and-t/
Sebastian
--
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to lists...@l
On 2021-12-10 10:02, Joe Monk wrote:
Hi,
Would this work?
Definitely not. It's the same problem as before.
TM requires the mask as part of its instruction.
As others have suggested, the B operand can be supplied
by using EX.
An alternative would be to use NC to test for the single bit.
On Thu, 9 Dec 2021 at 16:17, Hobart Spitz wrote:
>
> Opps: NC
NC et al provide only two result possibilities; TM provides three. But
since the OP did say "a bit" of a storage area, NC may work. But it
has, the side effect of changing one of the operands. There are newish
NRK/NRG instructions tha
i am getting older and grumpier ever day. And this is one of the reasons why.
z/OS 2.4 introduces change to AT-TLS rules required for the DDS task default
setting of https. The example given in the manual for AT-TLS is in the XML
cryptospeach of the developers.Since this is too arcane fo
What is the overhead cost to run ZD&T on AWS; that is, how much do they
charge you above what you pay for the IBM license for it. I wonder if IBM
will be offering the Learners Edition through the IBM Cloud?
Regards,
Mark Regan, K8MTR, EN80tg
CTO1 USNR-Retired (1969-1979 active; 1979-1991, reserve
With IBM beefing up NFS support, I also expect DS8K to be available in AWS etc.
Only then will zD&T be more approachable as there's less data leaving &
returning to the platform.
I really hope IBM knock it out of the park with the next storage.
Since they're also working with NVIDIA for integratin
> The only silver lining is continued employment opportunities
LOL... yes, sometimes doc writers can't seem to put themselves in the
position of the person reading the doc. They know the details, so why
doesn't everyone else?
Non-mainframe example: I recently signed up with zerossl.com for
On Thu, 9 Dec 2021 10:55:08 -0800, Ed Jaffe
wrote:
>On 12/8/2021 5:40 AM, Doug wrote:
>> I have watched this thread, and there is simply one thing most of us
>> are missing.
>> This is a MF forum. For years, we have been subjected to "oh using the
>> (insert new technology) is so much better th
Moshix did an AWS instance for Hercules VM/370 MVS 3.8J.
https://www.youtube.com/watch?v=HuXi1DLq1Sw
On Fri, Dec 10, 2021 at 2:43 AM Mark Regan wrote:
>
> What is the overhead cost to run ZD&T on AWS; that is, how much do they
> charge you above what you pay for the IBM license for it. I wonder i
On 8/12/21 9:34 pm, Bodra - Pessoal wrote:
Just a very simple question: They know word CONTINGENCY and data MIRROR?
Of course they do. Cloud computing providers allow you to set
availability zones on different data centeres and they replicate. Like
most It outages I suspect human error just
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