Migration support consists of tools that are included with WebSphere® Application Server. These tools primarily provide support for saving
the configuration and applications from a previous version of the product into a migration-specific
backup directory and then importing that configuration into the latest version of the application
server.
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 Migration Toolkit.
Read Overview of migration, coexistence, and interoperability and Premigration considerations. For resources to help
you plan and perform your migration, visit Knowledge Collection: Migration planning for WebSphere Application Server.
Important: Use the migration tools for the version of WebSphere Application Server that you are installing. The tools change over time.
If you use migration tools from an earlier release of WebSphere Application Server, you are likely to encounter a problem with the
migration.
The migration scripts are located in the
app_server_root/bin directory after installation.
You can use the WASPreUpgrade command to store the
configuration of an existing release before you migrate to the Version 8.5 product.
Select the appropriate migration tools to migrate your product configurations.
- Migration wizard
- You use the Migration wizard to migrate an earlier supported version of WebSphere Application Server to Version 8.5.
The wizard is the graphical interface to the primary Version 8.5 migration tools, the WASPreUpgrade
and the WASPostUpgrade commands.
The Migration wizard cannot run in a
non-graphical environment. Examples of non-graphical environments include telnet sessions. If you
want to run migration in a non-graphical environment, use the WASPreUpgrade and
WASPostUpgrade commands.
- WASPreUpgrade command
- You use the WASPreUpgrade command to save the applications and configuration
data from a previous installation of WebSphere Application Server to a backup
directory.
The WASPostUpgrade command restores the configuration data from the
directory to the new installation.
The Migration wizard calls the WASPreUpgrade command during
migration. You can also use the command to perform a manual migration after installing the new
version.
Read WASPreUpgrade command for more information.
- WASPostUpgrade command
- You use the WASPostUpgrade command to restore the configuration data from a
previous release.
The WASPostUpgrade command reads the data from the backup
directory where the WASPreUpgrade command stored the data.
The Migration wizard calls the WASPostUpgrade command during
migration. You can also use the command to perform a manual migration after installing the new
version.
Read WASPostUpgrade command for more information.
- clientUpgrade tool
- You can use the clientUpgrade tool to upgrade the client application to a new release level.
Read clientUpgrade command for more information.
- convertScriptCompatibility tool
- Administrators use the convertScriptCompatibility tool to convert their
configuration from a mode that supports backward compatibility of Version 6.1 or later
administration scripts to a mode that is fully Version 8.5.
Read convertScriptCompatibility command for more information.
- convertSelfSignedCertificatesToChained task
- Chained certificates are the default certificate type in WebSphere Application Server
Version 8.5. Administrators can use the
convertSelfSignedCertificatesToChained task with the wsadmin
tool to convert self-signed certificates to chained certificates.
Read the
SSLMigrationCommands command group for the AdminTask object article for more
information.
What to do next
Use the selected tools to migrate your product configuration.