Technical experts from the IBM Transaction Processing Facility (TPF) Development Lab share knowledge and information about the TPF product set - including z/TPF, TPF Operations Server (TOS), z/TPF Database Facility (z/TPFDF), and the TPF Toolkit.
The IBM Tivoli Monitoring Agent for z/TPF V1.1.2 is available from the TPF Family Products: Tools web page and adds support for z/TPFDF data collection counters, as well as a number of additional updates and fixes. APAR PJ42742, and prerequisite APAR PI30702, enhance continuous data collection (CDC) to include z/TPFDF data collection counters. This support provides you with the ability to monitor z/TPFDF API activity in an IBM Tivoli Monitoring environment. This enhancement can provide insight into z/TPFDF API activity in... [More]
The Master the Mainframe contest started last October is winding down with the final countries participating from the Middle East and Africa. This was the first year that region of the world participated, so the international outreach continues to grow! You can find details here: http://www-03.ibm.com/systems/z/education/academic/masterthemainframe/contest/mea.html As a reminder, z/TPF is included in this contest with a challenge revolving around the use of JSON to access z/TPFDF data. More details are found in a... [More]
APAR PJ43124 originally solved a specific problem reported to fix possible OSA-Express connection failures, but we have now discovered that there are other and more serious exposures (for example, core corruption that can cause an outage) that can be prevented by applying PJ43124; therefore, we strongly suggest all z/TPF customers apply PJ43124. See Service Bulletin 186 for additional details.
Webinar Introducing DFDL on z/TPF Date: June 24th Time: 10:00AM ET Presenter: Bradd Kadlecik Where: Online at https://apps.na.collabserv.com/meetings/join?id=950-968 Listen via the webcast or dial in to the conference bridge United States call in number: 1-888-426-6840 Participant Code: 25039986 For specific global numbers go to the link below and type in the call in number and participant code: ht t p s: / / ww w . te l e co n f er e n ce . a tt . c om / s er v l et / g lb A c ce s s ?p r o ce s s =a c c es s N um b e r = Click "Join As... [More]
z/TPF customers use control unit copy services like IBM® Global Mirror as part of their disaster recovery processes to copy updates from the primary site to the secondary (disaster recovery) site. By default, control unit copy services mirror all updates that are made at the primary site to the secondary site. Some of the updates, however, represent transient data where the data is either short lived or is always initialized if z/TPF is IPLed at the secondary site. For example, certain types of short term pools or session login... [More]
Bob’s application is taking a dump because the application is writing in protected storage. Bob identifies where the application issued a cinfc, so the application should be allowed to write to protected storage. Bob is unsure why he is taking this dump. Bob could read the PSW, to find out what the PSW key is, but that would be cumbersome. With the new and improved ECB Summary view, Bob can easily follow what the PSW key is as he steps through his application. Bob opens up the ECB Summary view, then the Instruction Detail... [More]
z/TPF customers have expressed interest in exchanging messages with Linux systems. One common question that has been coming up is whether to use distributed (x86-based) Linux, or Linux on z in an LPAR next to the z/TPF LPAR. One factor important to many customers is latency so analysis was done to understand the network latency between these two configurations. The testing was done on an zEC12 machine comparing the latency from a z/TPF LPAR to a Linux on z LPAR in the same zEC12 machine sharing an OSA card to the latency from... [More]
Interested in what academia is doing to provide you with students in the enterprise computing arena? Marist College in Poughkeepsie, NY provides you with that opportunity. They have a FREE conference scheduled for June 14th-16th, 2015 where companies like yours can find out what is going on in the enterprise computing community and influence future programs. Marist and other colleges want to hear from you about your needs. Please consider attending the conference.
A defect in the channel microcode was reported in environments where High Performance FICON® for z Systems™ (zHPF) is enabled and the logical partition (LPAR) is set to ESA/390 TPF mode. The fix is under development to address this issue with ESA/390 TPF mode. Before you enable zHPF, set your LPARs to ESA/390 mode to avoid the reported defect. For more information, see Service Bulletin 185 .
Please take the time to fill out this short 5 question survey regarding OpenSSL and our plans on upgrading it. https://www.surveymonkey.com/r/WQC256C For any questions please add a comment to this blog post. Thanks!
The webinar presentation by Adris Hoyos, conducted March 22, is now available for viewing on our IBM TPF YouTube Channel. https://ibm.biz/ztpfdebugger_webinar The PDF of the presentation is available at: https://ibm.biz/BdXs6U To see all of the IBM TPF recordings please visit: https://ibm.biz/IBM_TPF_recordings
The z/TPF sysroot files for GCC V4.6 were updated to include C++11 support. If you have applied or plan to apply the z/TPF support for C++11 standard (APARs PJ42286 and PJ42291), ensure that you download and install the updated version of the sysroot files. Note: Do not apply the updated sysroot files for GCC V4.6 until you apply the C++11 support APARs. For more information, see Service Bulletin 184 .
This SPE APAR delivers a new system trace option called ECB stack validation mode. With this support, you can find and debug certain coding errors, such as writing beyond the end of an allocated ECB stack frame or beyond the bounds of an ECB stack. You can turn on or turn off ECB stack validation mode by using the STACKVAL parameter on the ZSTRC command. When ECB stack validation mode is on, the following conditions occur: At each C function entry, C function exit, ENTxC macro, and BACKC macro, the application stack is traversed,... [More]
Debugger Enhancements Webinar April 22nd (Wednesday) at 10:00am EDT Adris Hoyas will be presenting and demonstrating ECB Summary View TPF File View Compare ECB Trace View Detach Debugger Active Usings 31 Bit Register Values Mixed Source View Dump Viewer Stack Corruption To Join the Webinar ht t p s: / / ap p s .n a . co l l ab s e rv . c om / m ee t i ng s / jo i n ?i d = 95 0 - 9 6 8 Click "Join As Guest", add your name and company name, and click "Join Meeting" Audio will be streamed, with the presentation, to your... [More]
The TPFUG held in Dallas, TX on March 22-25 was packed with great presentations from our z/TPF customers and IBM. The IBM presentations are now online at https://ibm.biz/tpfug_presentations_2015 Remember that you can use Google's advanced search feature to find a TPF presentation fast. Here is the link to the blog post where I explain how. https://ibm.biz/find_TPF_pres_fast Presentations Abstracts TPF Development Roadmap and Hardware Update - Mark Gambino, Connie Walberg Remote NoSQL Overview - Jamie Farmer Name Value Pair Support -... [More]
The RC4 "Bar Mitzvah Attack" for Secure Sockets Layer (SSL) and Transport Layer Security (TLS) affects the z/TPF system if applications use RC4 ciphers. For mitigation instructions, see the security bulletin . Note that TPF Development is not planning to do an APAR for this security issue at this time. Code changes associated with this issue will be included in the effort to re-port the more current version of OpenSSL planned for later in the year. As always, if you have further questions please post in the comment section... [More]
An updated IBM® Runtime Environment Java™ Technology Edition for IBM TPF Toolkit v3.6 is now available on the update site. For more information, please see the security bulletin . Mitigation instructions for a security vulnerability in the IBM Runtime Environment Java Technology Edition for TPF Toolkit v4.0 and v4.2 are also available. For more information, please see the security bulletin . TPF Toolkit Team
Data events for z/TPFDF allows you to automatically capture changes to your z/TPFDF databases, add context to the captured data, and send the data event to one or more remote systems for processing - all without making any changes to your applications. To help you understand how data event processing works and how to define and enable data events for your z/TPFDF files, the z/TPF Data Event Starter Kit is now available for download from the z/TPF drivers download site. The z/TPF data event starter kit demonstrates how... [More]
With the release of PUT-11, z/TPF pool support was modified to provide support for a new pool type: 4KB short-term FARF6 pools (4S6). The code released with APAR-PJ42299 concentrated on the use of the Norm State Pool Reallocation package to reorganize the z/TPF pool configuration. APAR PJ42694 extends that support to the 1052 State Pool Reallocation package. Additionally, the code for the commands ZGFSP DSP and ZGFSP RIV were updated to include support the 4S6 pool. For more information on APAR PJ42694, refer to the... [More]
For customers thinking about using the PDELAY feature on ZRTDM in the near future, here is a list of recent PDELAY related APARs. These APARs will be shipped later this year with PUT 12 and are now available for download from the z/TPF website. It is highly recommended that customers download and integrate these APARs into their z/TPF environment if they intend to use PDELAY support. What is PDELAY? PDELAY is a file threshold for a delay-file pending short term pool residing in VFA. The value is set per record ID using the ZRTDM... [More]
Interim Fix v4.2.3 for IBM TPF Toolkit v4.2 is now available on the update site. For more information, please see the announcement http://www.ibm.com/support/docview.wss?uid=swg21699686 and the security bulletin http://www.ibm.com/support/docview.wss?uid=swg21699891 . Interim Fix v4.0.6 for IBM TPF Toolkit v4.0 is now available on the update site. For more information, please see the security bulletin: http://www.ibm.com/support/docview.wss?uid=swg21699891 . An updated JAVA Runtime Environment for IBM TPF... [More]
Bradd Kadlecik, from TPF development, gave some great presentations about DFDL and the support coming to z/TPF. Here are some links to get you started. DFDL tutorials created by the DFDL Working Group at the Open Grid Forum http://redmine.ogf.org/dmsf/dfdl-wg?folder_id=5485 DFDL developerWorks tutorials http://ibm.biz/startdfdl DFDL specification reference http://www.ogf.org/df Feel free to ask questions in the comment section of this entry.
Last week I attended the TPF User Group conference in Dallas, where over 25 member companies came together to share ideas and innovations. I discovered all the ways z/TPF is foundational to their business strategy and I was thrilled to collaborate to define its future direction. As a first time attendee, I found the event inspiring and forward thinking, and I felt the same energy coming back at me from the TPFUG attendees at the event. Something is changing for mainframe and for TPF, something very, very good. The keynote... [More]
The webinar presentation by Jeff Van Minde, conducted February 25th, is now available for viewing on our IBM TPF YouTube Channel. https://www.youtube.com/watch?v=cgLqhv4MKj8 The PDF of the presentation is available at: https://ibm.biz/BdEN4b To see all of the IBM TPF recordings please visit: https://ibm.biz/IBM_TPF_recordings
For customers thinking about using the Online Database Reorganization package in the near future, here is a list of recent ODBR related APARs. These APARs did not ship on PUT 11 but will be shipped later this year with PUT 12. All of these APARs are now available for download from the z/TPF website. It is highly recommended that our customers download and integrate these APARs into their z/TPF environment as soon as practical. APAR PJ42785 Please see the following blog post to understand the issue solved by this APAR.... [More]