European System z Technical Conference - End of Day 5
MartinPacker 11000094DH Comments (2) Visits (5121)
Marna Walle: Recent Installation Enhancements and Directions
Marna gave a very good presentation, covering a wide range of topics in this area. Here are some highlights - at least from MY perspective:
In z/OS R.7:
In z/OS R.8:
Previewed for z/OS R.9:
There's been a lot of work on installation simplification in recent releases. I'm NOT the one to critique these enhancements. There are, though, items for both ServerPac and SystemPac.
The IBM Health Checker for z/OS is going to support migration and exploitation checks. I'll admit it's not a tool I get to use but A LOT of effort has gone into it - and the journey continues. For example I've just spotted in the R.9 preview that checks will be able to be written in REXX. Now THAT's something else I might try.
Martina Schmidt and Thomas Schulze: WebSphere Application Server Healthcheck for System z
This is a good general presentation on ensuring the environment and setup is right for WebSphere Application Server (WAS).
I've noticed this week that there's a good German team of younger IBMers working on pre-sales work for the WebSphere brand. This presentation was given by two of them.
Thomas reminded me it takes in the neighbourhood of 20% to 30% more JVM heap to create the equivalent Java garbage collection behaviour (frequency and duration) with a 64-bit heap as was seen with 31-bit.
Thomas suggested that the thread/work pipeline should get thinner (lower limits) at each stage from inital arrival through to eg DB2. I'll have to think about that one.
There will be free System z Optimised Applications (ZOA) 3-day workshops in Germany throughout 2007.