Rolling back standalone application servers

You can use the restoreConfig and wsadmin commands to roll back a migrated WebSphere® Application Server Version 7.0 standalone application server to the state that it was in before migration.

Before you begin

Best practice: When migrating a Version 5.1.x or Version 6.x standalone application server, the best practice is to perform the following actions if you want to be able to roll it back to its previous state after migration:
  1. Run the backupConfig command or your own preferred utility to back up the Version 5.1.x or Version 6.x standalone application server configuration.
    Important: Make sure that you note the exact name and location of this backed-up configuration.

    Read the "backupConfig command" article in the information center for more information.

  2. Migrate the standalone application server.
  3. If necessary, you can now roll back the standalone application server that you just migrated.

Procedure

  1. Stop all of the servers that are currently running in the Version 7.0 environment.
  2. Perform one of the following actions to restore the Version 5.1.x or Version 6.x configuration for the standalone application server.
    • Run the restoreConfig command or your own preferred utility to restore the Version 5.1.x or Version 6.x configuration.
      Important: Make sure that you restore the same backed-up configuration that you created just before you migrated this standalone application server.

      Read the "restoreConfig command" article in the information center for more information.

    • Use the wsadmin command to run the migrationDisablementReversal.jacl script from the Version 5.1.x or Version 6.x profile_root/bin directory of the standalone application server.
      Use the following parameters:
      app_server_root/bin/wsadmin -instance instance -conntype NONE 
      -f profile_root/bin/migrationDisablementReversal.jacl
  3. If you chose to keep the installed applications in the same location as the prior release during migration to Version 7.0 and any of the Version 7.0 applications are not compatible with the prior release, install applications that are compatible.
  4. Delete the Version 7.0 profile for the standalone application server.

    Read the "Deleting a profile" article in the information center for more information.

  5. Start the rolled-back standalone application server in the Version 7.0 environment.

Results

The configuration should now be returned to the state that it was in before migration.

What to do next

You can now restart the migration process if you want to do so.
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Last updated: Oct 22, 2010 2:45:02 AM CDT
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