Completing post-installation tasks before using SMP/E to restore to the previous accepted service level

About this task

This article describes those post-install tasks you might need to complete before using SMP/E to restore to the previous accepted service level.

If you install service and then find that, for some reason or another, you need to revert to a previous release, you typically need only to use SMP/E to restore to the previous accepted service level. However, some service releases contain defects that are incompatible with previous releases of WebSphere Application Server for z/OS.
Note: You will know if you are applying a service level that contains backward-incompatible defects if you receive message BBOO0286A (WTOR message 286) when the post installer applies the service. The console will prompt you to accept the backward-incompatible change. If you decide not to accept the change, you must either use SMP/E to roll back to the previous level or follow the post-install backout plans described in Completing post-installation tasks after using SMP/E to apply a new service level.
When you restore to the previous accepted service release, you need to first "back off" any post-install actions containing backwards-incompatible defects that were applied during that service before using SMP/E to restore to the previous accepted service level. This article describes the steps necessary to run the backoutPTF.sh shell script, which is located in your bin directory (WAS_HOME/bin, where WAS_HOME is the absolute path of the WebSphere runtime home directory) and which handles the backing out of applied post-install service for you.

Procedure

  1. Bring down those servers in the node for which you are doing back-off processing.
  2. Launch the backoutPTF.sh script. You will need to specify the product and the committed service level to which you intend SMP/E to revert.
    [Updated in February 2012] Example: This is an example of the command used to run the backoutPTF.sh shell script, run from the shell by a user with the proper authority. It prepares the WebSphere® Application Server for z/OS® runtime home directory to run at service level "cf211150.04."
    backoutPTF.sh WebSphere cf211150.04
    Note: The shell script is case-sensitive.
    [Updated in February 2012]
    feb2012
  3. After using the backoutPTF.sh shell script, follow the normal SMP/E procedures for restoring to the previous accepted service level.

Results

You know you are done when you are successfully back on the service level that you want.

What to do next

The following is a list of common errors that might occur when you use backoutPTF.sh to back out of service. The output goes right to stdout (on the shell from where the applyPTF.sh script was run).
A valid, currently installed PTF or APAR name and the target service level must be specified (case-sensitive).
If a PTF or APAR is not specified, then the "usage" of the command is printed.



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Last updatedLast updated: Aug 31, 2013 12:02:36 AM CDT
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