In April I provided some more details about the z/VSE sessions at the VM Workshop starting on June 25, 2015 in Binghamton, NY.
That blog entry is here . Today I just want to post a reminder. It would be great, if you could come.
In between you can find more details about the sessions and and registration information on the VM Workshop 2015 web page - here .
For sessions see "2015 agenda".
Enjoy your long Memorial Day or Pentecost weekend.
I plan my next blog entry for Tuesday.
With z/VSE 5.1 we introduced "Configurable input buffers for HiperSockets and OSA-Express devices" to improve TCP/IP throughput. Since HiperSockets transfers the data synchronously, successful delivery of data depends on if there are any free QDIO (queued Direct I/O) input buffers on the target system, e.g. Linux on z Systems. Since z/VSE 5.1 it is possible to configure the number of QDIO input buffers for CHPID type IQD (HiperSockets devices), OSD and OSX (OSA-Express devices). You may increase the number of input buffers from 8 up... [More]
Last week I informed you about our z/VSE 6.1 preview announcement - see here .
With z/VSE 6.1 we also previewed a new CICS version and it's new functionality:
CICS TS for z/VSE 2.1 - new content:
CICS Explorer update capability
Channel & Container support
CICS customer requirements
More current cypher suites (AES128/256) to CICS Web Support
Support for EXEC CICS INQUIRE SYSTEM OSLEVEL
Millisecond option added to some EXEC CICS... [More]
In between I returned from the Edge2015 conference and have a new blog entry for you.
Last October I asked you, if you have a requirement for a z/VSE connector to a Hadoop database - see here .
Hadoop is an open source software framework that has become a leading method of processing various data types,
particularly semi-structured and unstructured data.
Just yesterday we made a technical paper available, which describes the z/VSE capabilities to access Hadoop via our connectors.
The paper - Big Data and Hadoop with... [More]
I am still attending the Edge2015 conference and will travel back to Germany at the end of the week.
Therefore my next blog entry will be on Tuesday May 19.
Today I have some exciting news. We preview a new version of z/VSE - z/VSE 6.1.
z/VSE 6.1 is planned to be available in the 4th quarter of 2015. It can run on z10, z114, z196, zBC12, zEC12 and z13.
Below is a quick overview what you can expect in z/VSE 6.1:
The latest hardware support
IBM z13 support
Configurable Crypto Express5S
IBM System Storage options
IBM System Storage TS7700 Virtualization Engine Release 3.2
A new APAR for CICS TS for VSE/ESA 1.1.1 is now available.
If you are using the CICS Explorer, the PTF I mentioned in my blog a month ago is now available.
APAR PI35376 (PTF UI26401): DFHWB0723 WITH RESPONSE: 4. REASON: 2. AND IZE0106E CONNECT FAILED WITH ERROR "BAD REQUEST" USING CICS EXPLORER VSE
The CICS Explorer Client returns message IZE0106E for a "Bad Request". The CICS SYSLST contains message DFHWB0723 for Program name: DFHWBADY with RESPONSE: 4 REASON: 2.
Finally we got it ! An IBM Knowledge Center for z/VSE .
You may remember one of my blog entries related to the Knowledge Center (KC) last year, where I informed you about the KC for Linux on z Systems and
CICS Transaction Server for VSE. Now we have it for z/VSE too. It's a good source, for any kind of information related to z/VSE.
Now you have an additional option to access z/VSE documentation:
z/VSE Knowledge Center
The online book server
The virtual z/VSE documentation DVD downloadable from the IBM... [More]
In between I posted more than 500 blog entries.
... but now to my topic for today:
When I am looking into z/VSE performance issues, in most cases I am asking customers to install the z/VSE CPU Monitoring Tool (CPUMON).
If you run CPUMON, it will provide the CPU utilization, MSUs, non-parallel share, multiprocessor exploitation and much more for the monitored time period.
It can not replace a performance monitor, however. Performance monitors are available from z/VSE vendors.
Back to CPUMON - just let the tool run for a... [More]
Since some time now you can raise requirements via the Request for Enhancement (RFE) web tool.
You may raise a new requirement for z/VSE and its products / components, search for or vote on existing requirements.
To do so you have to sign on with your IBM id. The RFE web page is here .
Please use the following selection for z/VSE requirements :
Today I have just a short blog entry, because I was in meetings all day. ... and after a long weekend some emails are waiting to be answered.
In just a week starts the Edge2015 conference in Las Vegas, NV. I hope, that I have some exciting news for you at the conference.
More information about Edge2015 is here .
I also recommend the latest entry of our IBM Redbooks blog - "5 Things to Know why IBM z13 should be your next move ".
The blog entry is here .
Today is a public holiday in Germany - May 1. Therefore you will see my next blog entry on Monday - May 4.
Have a good weekend.
There are some new IBM Redbooks, that may be of interest for you.
Two new or updated Redbooks related to z13:
IBM z13 Configuration Setup
IBM z13 Technical Guide
Here is a Redbook for ECKD and FCP-attached SCSI storage:
IBM DS8870 Architecture and Implementation
If you are looking into FCP-attached SCSI storage for z/VSE, the following Redbooks might help to get an overview and understand their configuration:
I am attending a conference in Germany the next two days. Therefore I plan my next blog entry for Thursday.
There are a few updates on our z/VSE download page. Both address connectors and were updated last month.
I am not sure, if you have seen them.
CICS2WS Toolkit - is a development tool that helps you to use Web Services with your existing CICS programs. It was updated to version 2.6.1.
Linux Fast Path (LFP) Daemon - my LFP blog entry last week and the z/VSE TCP/IP Support book has more details. You may download the book from our documentation web page - here . It was updated because... [More]
This week on Tuesday and Wednesday I informed you about the VM Workshop in June.
Now I want to end the week with a reminder for two upcoming conferences:
The GSE Spring conference starts on Moday. It's a three day German conference in Berlin. The registration and agenda web page is here .
The Edge2015 conference with a z/VSE track starts on May 11 in Las Vegas, Nevada. The registration and agenda/abstract web page is here .
Have a good weekend.
I just had a discussion on our Linux Fast Path (LFP) function and looked for additional material to our z/VSE documentation.
May be the article (see link below) is also of interest for you.
Besides the two TCP/IP stacks we also provide a function that bypasses the TCP/IP stack on z/VSE - or doesn't require one.
This function is called Linux Fast Path - or short LFP. A TCP/IP application on z/VSE can communicate with a LFP daemon (small program)
running on Linux on z Systems. The daemon communicates through the Linux TCP/IP... [More]
Today I have more detailed information on the VM Workshop. Please see planned z/VSE sessions below.
Announcement to our friends in the z/VSE community
The VM Workshop planning committee is pleased to announce the inclusion of an exciting line-up of z/VSE sessions at the 2015 VM Workshop being held at Binghamton University... [More]
You may now register to the VM Workshop 2015.
It will be conducted at Binghamton University in Binghamton, NY for 2.5 days from about 9AM on Thursday June 25, until approximately 2PM on Saturday, June 27.
The workshop is for technical users of z/VM, Linux on z Systems, and z/VSE systems. The VM Workshop web page now has more details - see here .
I see the VM workshop as a replacement for WAVV. It would be great, if we could meet there.
Sorry, that you did not see a blog entry during the last days. I just returned from a business trip.
Today I want to recommend a posting on our IBM Redbook blog. The blog provides "5 things to know" about a specific topic or Redbook publication.
This time it's "5 Things to Know About the Hottest Emerging Trends in IT". That is 5 things to know about emerging technology trends, as uncovered in the IBM Academy of Technology survey.
The blog entry is here , which also includes a link to the corresponding IBM... [More]
We just released a new openSSL. I recommend to apply that on z/VSE 5.1, if you are running IPv6/VSE
- and z/VSE 5.2 in general, because more z/VSE components exploit openSSL.
APAR DY47602 (z/VSE 5.1 PTF UD54105, z/VSE 5.2 UD54106): SECURITY FIXES FOR OPENSSL.
The APAR fixes a vulnerability described by CVE-2015-0286.
If you are interested in the CVEs (Common Vulnerabilities and Exposures), just search for the CVE ids in the internet.
The APAR information is here .
The APAR will show up on our... [More]
We just released an Android App for z/VSE. If you have an Andriod smart phone or tablet you may use this application to get information on z/VSE, such as news, events, education, documentation, etc. Basically it provides the content as available on our web pages and more.
You can download the App from our web page - here .
Please let us know, what you think about that App.
Just if the given link does not work, it's on the bottom of our web page ibm.com/vse
There are new APARs / PTFs available for the Interactive User Interface (IUI) and CICS TS for VSE/ESA.
Interactive User Interface
APAR PI35785 (z/VSE 5.2 PTF: UI26254-52C): MSGOP31ADVC NOT OP SYSCTL=6C0 WHEN TRYING TO READ A .AWS OR A .PTF TAPE FROM MY PC. RUNNING INSPRE,AS GENERATED BY THE IUI
INSPRE job created by the installation dialog fails with message 0P31A DVC NOT OP SYSCTL=6C0, when trying to read a .AWS or a .PTF tape from my PC. VSE VTAPE (remote) used for installation.
If a customer used... [More]
We have just a few weeks to our next conference with z/VSE sessions - IBM
Edge2015 on May 11-15, 2014 in Las Vegas, NV, USA.
It covers the Executive Summit and three Technical Universities: Storage
Systems, z Systems and Power Systems.
If you are interested, more information is here .
On Friday is a public holiday in Germany (Good Friday) and on Monday is
another public holiday (Easter Monday).
Have a nice weekend. Happy Easter !
There is a new TCP/IP APAR available to get the product to the latest service level.
IBM TCP/IP for VSE/ESA 1.5F
APAR PI34507 (PTF UI25359 and UI25360): APAR WITH FIXES (ZAPS) FOR TCP/IP 1.5 SERVICE PACK F. ( TCPIP15F / SERV150F )
The following ZAPs are shipped within one PTF:
ZP15F017 An upgrade to a DNS server results in "entry not found" by client.
ZP15F049 Connect_Sequence fails to be enforced.
ZP15F050 Unnecessary diagnostics dumps during cleanup.
ZP15F058 Multiple subtasks reset job... [More]
The new IBM Redbook introduces the new IBM z13 mainframe. It gives a hardware overview, describes key functions and capabilities. provides some information about the operating system support including z/VSE, and more.
The "IBM z13 Technical Introduction" Redbook is here .
There is also a new IBM Redbooks Solution Guide available: Securing the IBM Mainframe.
This Solution Guide focuses on the following hardware and operating system platforms: IBM z Systems, IBM z/OS, IBM z/VM and Linux on z Systems
The IBM... [More]
Just recently I got a question about the use of the z/VSE LOAD macro below and above the (16 MB) line.
The LOAD macro was enhanced with z/VSE 4.3 to allow execution in 31 bit addressing mode. It loads the specified phase into storage, if this phase is not in the SVA (shared virtual storage). The enhancement is transparent to existing programs.
Before I describe what changed, I will summarize addressing and residency modes.
A program (phase) can have one of the following addressing modes:
24-bit addressing mode (a... [More]
We - the z/VSE development team - use z/VM in the early test stages to verify new z/VSE functions and use the z/VM tracing capabilities to analyze problems.
New developers joined our team and I looked into z/VM material they could use as a start.
Many of our z/VSE users are running their z/VSE systems in z/VM guests too. May be you are also looking for basic z/VM education material.
There are presentations on the z/VM web page - here .
I would recommend the IBM Redbook "Introduction to the New Mainframe: z/VM... [More]
More and more z/VSE users implement our PIE (Protect, Integrate, Extend) strategy and use our connectors to Linux on z Systems.
Therefore I assume that there is some interest in the following Live Virtual Class (LVC).
Date: Wednesday, April 15, 2015
Topic: Linux on z Systems - What's New?
Abstract: This presentation will give an overview of the Linux on z Systems project. It will show Linux as a very active open source project and will give you an insight of what makes Linux so special. During this session you will learn... [More]
Today I have another z/VSE service post for you. The verification went faster than I expected.
The new z/VSE 5.2 PTFs are for the Language Environment (LE) component.
APAR PI35189 (PTF UI26069): C PROGRAMS (LIKE EDCICONV OR REXX-VSAMIO) WRITING DATA WITH RECORD LENGTH > 115 BYTES MIGHT ABEND.
C programs (like EDCICONV or REXX-VSAMIO) writing data with record length > 115 bytes might ABEND.
The ABEND could be indicated by messages like:... [More]