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.
Starting Monday November 16, 2015, the severity and critical columns will be removed from the z/TPF APAR data spreadsheet and corresponding csv files that are posted on the TPF Family Products: Maintenance web page. The HIPER column will remain as the single indicator of high impact and pervasive APARs. This change is being made to simplify APAR classification and help you to more easily identify high impact and pervasive APARs. Please note that to support the new csv file format, an updated version of... [More]
The z/TPF Face Table Webinar and Presentation now available The webinar presented by Mark Spies is now available on our z/TPF YouTube channel and the presentation is available from our developerWorks link. * Introduction to the Face Table: https://www.youtube.com/watch?v=1sIRl0pRjcU * PDF of presentation: https://www-304.ibm.com/connections/files/app#/file/9851af58-1c7c-4cb1-a78e-2f55221d334c
The DASD module status commands ZDMFS and ZDMOD DISPLAY have been updated to include filters for MPLF connect devices, offline devices and devices in module copy state. The information presented by these new filters was in each of the displays prior to this APAR, but the onus was on the user to find the desired modules by status. With this APAR applied the user can find modules by status more quickly. This is an aid in the case of finding offline modules or determining if your MPLF connect devices are evenly spread. In... [More]
APAR PJ41739 corrects issues with network services database (NSD) processing that were introduced with APAR PJ42209. At the time that APAR PJ41739 was released, the additional problem with PJ42209 was not identified; therefore, APAR PJ41739 was not marked as fixing APAR PJ42209. The z/TPF APAR data spreadsheet has been updated to mark APAR PJ41739 as fixing APAR PJ42209. If you plan to apply or have already applied APAR PJ42209, ensure that you also apply APAR PJ41739. If you already applied APAR PJ42209 and cannot apply the correcting APAR... [More]
Webinar - Introduction to the Face Table This webinar will present high level information about the TPF Face Table (FCTB). What it is, how it is created, how it is loaded to TPF, what user interfaces use the FCTB, what a file address is, and a short discussion on the input used to create a FCTB. The webinar would be useful to new hires Date: Wednesday - September 30th Time: 4:00PM ET Presenter: Mark Spies Password: webinar Where: Online at: http s:// apps .na. coll abse rv.c om/m eeti ngs/ join ?id= 4786 -827 5 Listen via the... [More]
APAR PJ43266 - mymalloc support for z/TPF The purpose of mymalloc support is to reduce the performance impact when many ECBs are obtaining a large number of unique small sized ECB heap buffers. When a large number of unique ECB heap buffers are obtained a corresponding large number of ECB heap control table entries are obtained. Managing a large number of unique ECB heap control table entries has overhead. After the initial 151 ECB heap control table entries are used, a 4 KB system heap frame is obtained to hold the next 31 control table... [More]
Recording of 'Business Events - Concepts and Structures for z/TPF' is now available on the IBM TPF YouTube Channel. IBM TPF YouTube Link: https://www.youtube.com/watch?v=w-2lZuHpD80 The PDF of the presentation is available here: https://ibm.biz/BdXLwy
Webinar z/TPF Business Events - Concepts and Structures Date: Wednesday - August 5th Time: 4:00PM ET Presenter: Chris Filachek **UPDATE - Password will be: events (one word all lower case) ** Where: Online at: https://apps.na.collabserv.com/meetings/join?id=4786-8275 Listen via the webcast or dial in to the conference bridge United States call in number: (Toll) 1-646-307-1354 (Toll Free) 1-855-233-7153 Participant Code: 84152707 International numbers with same Participant Code: France: +33 290920993 (Toll) France:... [More]
Interim Fix 4.2.4 for IBM TPF Toolkit 4.2 is now available on the update site. This interim fix only provides security fixes. For more information, please see the security bulletin . Interim Fix 4.0.7 for IBM TPF Toolkit 4.0 is now available on the update site. This interim fix only provides security fixes. For more information, please see the security bulletin . An updated IBM® Runtime Environment Java™ Technology Edition Version 6 for IBM TPF Toolkit 3.6 is now available on the update site. ... [More]
APAR PJ42695 - z/TPF HTTP Server Enhancements (PUT12) z/TPF HTTP Server support has been updated, providing the following enhancements: HTTP Server support will now receive HTTP requests that use chunked transfer encoding and trailers. HTTP requests that have a Transfer-Encoding: header with a value of "chunked" included will result in the HTTP server support waiting to receive the "chunks" of the HTTP request body sent by the client. The HTTP server support will construct a single, contiguous HTTP request body from... [More]
The webinar presentation by Bradd Kadlecik, conducted June 24, is now available for viewing on our IBM TPF YouTube Channel. https://www.youtube.com/watch?v=_4t3OnNUjOw The PDF of the presentation is available at: https://ibm.biz/BdXeg6 To see all of the IBM TPF recordings please visit: https://ibm.biz/IBM_TPF_recordings
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]