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]
There are new PTFs available for z/VSE 5.1 and 5.2.
Let me start with the most critical one, which is also flagged as HIPER ("High Impact or Pervasive APAR"). It is related to Linux Fast Path (LFP).
VSE/AF - Connector - Linux Fast Path (LFP)
z/VSE 5.1 APAR PI35642 (UI25398), z/VSE 5.2 APAR PI35643 (PTF UI25399): DATA SEQUENCE ERROR WHEN USING Z/VSE FAST PATH TO LINUX ON SYSTEM Z
When using z/VSE Fast Path to Linux on System z (LFP) to send huge amounts of data from remote to z/VSE,... [More]
On April 7, 2014 we announced z/VSE 5.2. In the announcement letter a Statement of Direction (SOD) for CICS was included:
IBM intends to provide new capability in a future release of IBM CICS Transaction Server for z/VSE, to provide:
(i) Updates to CICS resources for CICS Explorer®, and
(ii) Channels and Containers to enable the transfer of large amounts of data between CICS applications.
For Channels and Containers IBM Redbooks were published in the past. Just a few days ago a new one was released
with the title... [More]
Nearly a year ago I posted a blog entry on tape-less initial installation, which is possible with z/VSE 5.2. The blog entry is here .
In between we also had a Live Virtual Class (LVC) on that topic. You can download the presentation and playback from here .
Tape-less initial installation is only possible on ECKD devices
I am currently looking into a requirement for tape-less installation on FBA-SCSI devices. The requirement is here .
You need to log-in with your IBM id to view this requirement. You may vote on it.
In many cases I know the device name (processor, DASD, disk, tape), but not the device number.
The device number can be used to search e.g. for the corresponding Preventive Service Planning (PSP) document to
get required APAR information for a specific device.
My list below shows the device number and corresponding device name.
Just for completeness I also included the very old processors.
Device Number Device Name
Processor ... [More]
I am not in the office today.Therefore you can expect my next blog entry tomorrow.
It's nice today. We expect 18 C with blue sky. It's spring. Flowers are growing.
I hope, your z/VSE system runs fine all the time. Just in case you need to contact the z/VSE service team (Level 2) in case of a problem,
our service team may ask for the following material or ask the following questions:
Issue the SIR command on the console and make a screen shot from the output or prepare the console log output (EXEC PRINTLOG)
The SIR output shows the processor, the z/VM and z/VSE release, VSE Supervisor and VSE/POWER PTF level, number of CPUs, ...
Prepare the console log output. We scan that for... [More]
If you are running your z/VSE systems on zBC12 or zEC12 mainframes, you may be interested in the corresponding IBM Redbook Technical Guides.
The following two guides were just updated:
IBM zEnterprise BC12 Technical Guide
IBM zEnterprise EC12 Technical Guide
Today you can order z/VSE on tape, DVD or electronically from Shopz. Do you still need z/VSE on tape ?
As you know since z/VSE 5.2 you can run an initial installation from a DVD or tape image.
I described tape-less installation in one of my blog entries - here .
With the tape image you may also create a real tape. we describe that in the z/VSE Installation book.
That is you can still install or Fast Service Upgrade (FSU) from a real tape.
Therefore my question - would it be acceptable to deliver z/VSE just on DVD or... [More]
The presentation and playback of the last z/VSE Live Virtual Class (LVC) is now available on our education web page (held on March 10, 2015).
The topic was "Analyzing CICS TS SOS Problems in z/VSE".
Besides the presentation and playback you may also download the document "How to Determine CICS Wait Time from CICS Trace".
You may download them here .
From time to time it is necessary to upgrade the microcode of your IBM Storage (ECKD/SCSI disk or tape).
For ECKD storage I recommend to shutdown the z/VSE system before you upgrade the microcode.
For Fibre-Channel-attached SCSI disks concurrent microcode upgrade is not supported.
z/VSE with the latest service level supports concurrent microcode upgrade for IBM tape storage . Please consult your device documentation for details. We recommend to take the tape units offline (z/VSE OFFLINE command) prior to the microcode... [More]
The new mainframe - IBM z13 - is available since yesterday. A good start for general information about the new mainframe is the product page - here .
I briefly summarized below, where you can find information about z/VSE on z13.
The z/VSE status pages provide information about z Systems processors and z/VSE releases.
Fur supported z/VSE releases (z/VSE Version 5) the processor table is here , for unsupported VSE releases it is here .
The requirements for z/VSE Version 5 on z13 are summarized in the Preventive Service... [More]
We are starting a beta test for new z/VSE and CICS TS functions this month. Would you be interested ?
What do we expect ? During the beta test period it would be great, if you could run some tests with your workload and share your experience with us.
The system would require an initial installation. It can be used as a test system only (not in production). You need at least a z10 or higher.
What is your benefit ? You can get early experience on the latest z/VSE development and verify the benefits for your workloads.
There are new APARs / PTFs available for z/VSE 5.1 and z/VSE 5.2.
Attention Routine (IJBAR31)
APAR DY47601 (z/VSE 5.1 PTF: UD54099, z/VSE 5.2 PTF: UD54100): TIME ZONE=VM RESULTS IN 0S04I ILLEGAL SVC - HEX LOCATION 0DF647BE - SVC CODE HEX 6B IN IJBAR31
After installation of UD54048 / DY47556 on z/VSE 5.1 or respectively UD54057 / DY47562 on z/VSE 5.2 the command TIME ZONE=... may program check on systems with NPARTS less than 23 or number of active partitions higher than NPARTS - 12. APAR DY47601 resolves this problem.... [More]
Since z/VSE 3.1.1 (available 2006) you can protect CICS transactions using the Basic Security Manager (BSM) Control File, which makes the old concept based on DTSECTXN table obsolete. However, you can still use the old security concept based on DTSECTXN.
If you are still using the DTSECTXN, it is time to migrate your CICS transaction security definitions to the BSM Control File and get rid of the DTSECTXN table. A dialog is available to migrate the DTSECTXN security entries into the BSM Control File. I recommend to migrate the DTSECTXN... [More]
In just a few days the new mainframe - z13 - will be available. See my related blog entry here .
If you have your new z13, you may want to migrate your IOCP definitions. In that case you need to update the HiperSockets definitions (CHPID type IQD).
There is a new parameter in the CHPID statement - the VCHID parameter.
Starting with z13, the IOCP generation of HiperSockets devices requires the keywork VCHID. VCHID specifies the virtual channel identification number associated with the channel path (similar to PCHID). A valid range is... [More]