Migrating to a Version 8.0 stand-alone application server on a remote machine

Use the migration tools to migrate from a Version 6.x to a Version 8.0 stand-alone application server on a remote machine.

Before you begin

Supported configurations Supported configurations:

This topic is about configuration migration, such as migrating deployment managers and federated nodes in a network deployment environment. The Application Migration Toolkit for WebSphere Application Server provides support for migrating applications from previous versions of WebSphere Application Server to the latest product version. For information about migrating applications, read more about the Application Migration Toolkit.

sptcfg
Read Overview of migration, coexistence, and interoperability and Premigration considerations.

Typically, you can use the WASPreUpgrade and the WASPostUpgrade migration tools to upgrade from Version 6.x to Version 8.0 on the same machine. However, some scenarios require that you migrate the Version 6.x configuration on one machine to Version 8.0 on a different machine. One of these scenarios is when you install new machines for your Version 8.0 environment but need to migrate your existing Version 6.x configuration from other machines.

To ensure that your operating system is supported by WebSphere® Application Server Version 8.0, visit the following site for the most current list of supported hardware and software: WebSphere Application Server system requirements.

If you find that your operating system is not supported for migration to Version 8.0, read Migrating stand-alone application servers from unsupported operating systems.

The WASPreUpgrade command saves the existing Version 6.x configuration into a migration-specific backup directory. The WASPostUpgrade command uses this directory to add the old configuration settings to the new Version 8.0 environment.

Tip: Before migrating a WebSphere Application Server Version 6.x stand-alone application server on a remote machine, use the backupConfig command or your own preferred backup utility to back up your existing configuration if you want to be able to restore it to its previous state after migration. Read the "backupConfig command" article in the information center for more information. Make sure that you note the exact name and location of this backed-up configuration.

For help in troubleshooting problems when migrating, read Troubleshooting migration.

Procedure

  1. Obtain the WebSphere Application Server Version 8.0 utilities disk.

    This disk contains the migration/bin directory. This directory contains a special environment that you can use to run the WASPreUpgrade command without installing Version 8.0.

  2. Save the current configuration using the WASPreUpgrade script from the migration/bin directory of the WebSphere Application Server Version 8.0 utilities disk, which you must mount on the Version 6.x machine.

    Read WASPreUpgrade command for more information.

    Save the configuration in the migration_specific_backup directory on the Version 6.x machine.

    [AIX] [HP-UX] [Linux] [Solaris]
    ./WASPreUpgrade.sh /filepath/migration_specific_backup /opt/WebSphere/AppServer -machineChange true
    [Windows]
    WASPreUpgrade C:\filepath\migration_specific_backup C:\Program Files\WebSphere\AppServer -machineChange true
    The WASPreUpgrade command provides status to the screen and to log files in the migration_specific_backup directory. ASCII log file names start with the text WASPreUpgrade and include a date and timestamp.
  3. Copy the migration_specific_backup directory from the WebSphere Application Server Version 6.x machine to the Version 8.0 machine.

    Use the ftp command, shared storage, or some other mechanism to copy the directory to the new machine.

  4. Install WebSphere Application Server Version 8.0 on the new machine.

    Read the "Installing the product and additional software" article in the information center for more information.

    Install the same features as the earlier release.

  5. Use the Profile Management tool or the manageprofiles command to create a WebSphere Application Server Version 8.0 profile.
    Restriction: You cannot use the Profile Management Tool to create profiles for WebSphere Application Server installations on 64-bit architectures except on the Linux for zSeries platform. However, you can use the Profile Management Tool on other 64–bit architectures if you use a WebSphere Application Server 32–bit installation.

    Read the "Creating profiles using the graphical user interface" article or the "manageprofiles command" article in the information center for more information.

  6. Add the WebSphere Application Server Version 6.x configuration to the Version 8.0 configuration.

    Read WASPostUpgrade command for more information.

    Use the WASPostUpgrade command in the app_server_root/bin directory of the Version 8.0 installation to add the Version 6.x configuration to the Version 8.0 configuration.

    [AIX] [HP-UX] [Linux] [Solaris]
    ./WASPostUpgrade.sh /filepath/migration_specific_backup
    [Windows]
    WASPostUpgrade C:\filepath\migration_specific_backup
    The WASPostUpgrade tool records information specific to each enterprise bean it deploys in the migration_specific_backup/WASPostUpgrade.log file.
  7. Modify the configuration using the WebSphere Application Server Version 8.0 administrative console.
    1. Change user IDs and passwords to match security requirements.

      You might have to change user IDs and passwords if they are not identical to those in use on the Version 6.x machine.

    2. Change other machine-specific information.

      The configuration might refer to other software products or configurations that do not exist on the new machine. For example, the old machine might have a database. Modify the data source to point to the database on the old machine.

Results

You have migrated WebSphere Application Server from Version 6.x to a remote Version 8.0 machine.




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Last updatedLast updated: Sep 20, 2011 1:02:59 AM CDT
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