WebSphere Application Server V7.0: Concepts ... - IBM Redbooks

14.10.1 Planning considerations
Table 14-7 provides a list of planning considerations for WebSphere Application
Server for z/OS V7.0.
Table 14-7 Planning considerations for WebSphere Application Server for z/OS V7.0
Planning item
ISPF Customization Dialog has been removed. All profile creation has to be done using the WebSphere
Configuration Tools (WCT) or the line-mode zpmt.sh command.
Make sure you have a convenient naming convention, that can reflect the usage of the new WebSphere
Application Server V7.0 components, job manager and administrative agent. (The zPMT will use the
recommendations from the Washington System Center by default.)
Test the usage of the XCF support for the HA manager.
Make sure that monitoring is in place.
You might want to use the IBM Support Assistant with the following plug-ins:
► Visual Configuration Explorer (VCE)
A graphical view on your environment as well as to keep track of configuration changes. The usage of
this no-charge tool is recommended.
► Garbage Collection and Memory Visualizer
For analyzing verbose gc information, to identify a good heap size.
► Thread Analyzer
Provides analysis for Java thread dumps (or Javacores) such as those from WebSphere Application
Server.
Check the amount of real memory provided for the LPAR, were WebSphere Application Server for z/OS
should be installed.
Check the usage of Java Compressed references, because most of the current applications have no need
for heaps larger than 900MB.
Check with the application developers, whether the application can exploit the shared class cache.
Make sure you performed a verbose garbage collection analysis, to identify and verify the heap size.
476 WebSphere Application Server V7.0: Concepts, Planning, and Design