My blog posts from the old IBM community

The old IBM community site is being replaced by a new IBM community web site, and old blogs are not being copied across.

I’ve managed to copy the posts I wrote when I worked for IBM and copied them to this web site. It has been a trip down memory lane reading the posts, and the topic I covered.

• Whoops I didn’t see that error message- October 2013
• Disaster recovery and Active-Active for MQ- October 2013
• Backing up MQ Pagesets – what do I need to do?- September 2013
• Tips for MQ performance on z/OS- February 2014
• Tuning IMS to make WMQ OTMA go faster- October 2014
• Setting up queue manage security with RACF- October 2014
• What do I need to think about when using QREP over MQ?- October 2014
• Is my MQ SSL channel using hardware assist?- October 2014
• Do I need Concurrent Copy to backup my pagesets or can I use Fastreplication and save CPU?- April 2015
• What levels of MQ support SCM (Flash express)?- April 2015
• Where’s my message gone?- August 2015
• New version of MP1B program to print MQ stats. Also includes OEMPUT to put+get and see CPU costs and elapsed times- August 2015
• Printing MQSMF data- August 2015
• Program to time puts and gets- August 2015
• How much real storage does MQ on z/OS need?- August 2015
• What should I plan for- August 2015
• MQ FTE 70x on z/OS ships some samples- August 2015
• Getting the best throughput with MQ TCPIP channels- November 2015
• Updated information setting up MQ logs- November 2015
• Fniger trouble when using AMS on z/OS- February 2016
• Understanding log stats- February 2016
• How to get my messages back from the data log- February 2016
• So when does a message really expire?- November 2016
• How many buffers do I need for SMDS?- November 2016
• What’s the difference between a CPACF and a crypto express?- November 2016
• Unexpected RACF message when using CHINIT- November 2016
• How do I edit that ASCII file in uss- November 2016
• Why is my DB2 stored procedure using a lot of CPU?- November 2016
• Should I set up page set expansion – and how should I do it.?- July 2017
• Should I use MQ log compression or let HSM do it?- July 2017
• Should I use trigger first or trigger every for a high thoughput queue?- July 2017
• Why is my xmit queue filling up?- July 2017
• How do I turn on Chinit SMF every time?- July 2017
• Tuning MQ for QREP on z/OS- July 2017
• Prevent a major whoops – check it now- 2017 June
• How we tracked down a cunning network problem- 2017 June
• How fast is a piece of string?- 2017 June
• Solving so called ‘MQ performance problems’ – what to check- 2017 June
• Summarising MQ usage in the usage report and Sub Capacity Pricing report- 2017 June
• Getting started on MQ performance on z/OS for those people with no time- March 2017
• Why does performance dip every day at the same time?- March 2017
• Where’s my bottleneck – the obvious answer may be wrong!- March 2017
• Converting a queue manager to a QSG- 2017 September
• Plan your QSG environment- 2017 September
• Create your new queue managers- 2017 September
• Set up the QSG- 2017 September
• Migrate work from MQPA to QSG- 2017 September
• Make channels shared- 2017 September
• Operational tasks- 2017 September
• Connecting channels to and from a Queue Sharing Group- 2017 September
• Where do you put channel definitions?- 2017 September
• Qmgr to Qmgr channels- 2017 September
• What is a shared input channel?- 2017 September
• MQI Client channels- 2017 September
• Changing your log size- 2017 September
• Steps- 2017 September
• What’s the cost of using a MQ message selector to select a message from a queue?- March 2018
• Saving CPU by having a job that does nothing!- March 2018
• My favourite USS shell commands- March 2018
• What do the MQ DB2 plans do ?- March 2018
• What’s the CPU cost of not defing a queue?- March 2018
• Where’s MP16 gone?- March 2018
• I want to get the best throughput from Shared Queue- March 2018
• My uss file is not readable- March 2018
• Should I duplex my non recoverable structure?- March 2018
• Should I use more than one structure within a unit of work?- March 2018
• What is the impact of putting messages to more than one structure in a unit of work?- March 2018
• Are your servers PETS or CATTLE?- March 2018