Steps for planning WebSphere Application Server for z/OS and cells

Before you begin

You should have completed the WebSphere Application Server for z/OS installation and customization on a monoplex or on a single system in a sysplex. Also, you must have enabled a z/OS sysplex. For more information on sysplexes, see z/OS MVS Setting Up a Sysplex.

Why and when to perform this task

Follow these steps to plan for using the Application Server and cells:

Steps for this task

  1. Decide whether you want a single-system view of the error log.
    If you want a single-system view of the error log, and initially you set up the error log in the system logger and used DASD for logging, you must now configure the error log in the coupling facility.
  2. Decide how you will share application executables in the cell.
  3. Set up ARM.
    This release does not support cross-system restart, so you must set up your ARM policy accordingly. Make sure you specify TARGET_SYSTEM for the system on which each element runs (if you take the default TARGET_SYSTEM=*, you get cross-system restart).
  4. Decide whether you will run all the WebSphere for z/OS run-time servers on every system in the cell.

    Recommendations: The following table provides recommendations and requirements for running servers in a cell.

    Running servers in a cell
    Server Recommendations and requirements for running servers in a cell
    location service daemon and node agent
    • You must run both these servers on each system in the cell in which you want Application Server work to run. Thus, you may have some systems in your cell that do not run the Application Server or Application Server applications at all. But, for those systems on which you want Application Server applications to run, you must have the location service daemon and node agent.
    • If a server indicates that PassTickets are desirable for interaction with a client, you must run the location service daemon and node agent on the system where the z/OS client resides.
    deployment manager Make sure you follow the correct steps to configure a deployment manager cell.


  5. (Optional)   Follow these steps to build WebSphere Application Server for z/OS Deployment Manager cells:
    1. Install the base server on each node in your sysplex.
    2. Install a deployment manager cell on one node in your sysplex.
    3. Add base server nodes to the deployment manager cell.



Searchable topic ID:   plsysplx
Last updated: Jun 21, 2007 9:56:50 PM CDT    WebSphere Application Server for z/OS, Version 5.0.2
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