Use the migration tools to migrate from a Version 6.1 or
above to a Version 8.5 stand-alone
application server on a remote machine.
Before you begin
Supported configurations: This
article 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 6.1 or above to Version 8.5 on the same machine. However, some scenarios require that you
migrate the Version 6.1 or above configuration on one machine to Version 8.5 on a different machine.
One of these scenarios is when you install new machines for your Version 8.5 environment but need
to migrate your existing Version 6.1 or above configuration from other
machines.
To ensure that your operating system is supported
by WebSphere Application Server Version 8.5, visit the following
site for the most current list of supported hardware and software: WebSphere Application Server system requirements.
The WASPreUpgrade command saves the existing
Version 6.1 or above configuration into a migration-specific backup
directory. The WASPostUpgrade command uses this
directory to add the old configuration settings to the new Version 8.5 environment.
Tip: Before migrating a
WebSphere Application Server Version 6.1 or
above 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. Make sure that you note
the exact name and location of this backed-up configuration. For more
information, see
backupConfig command.
For help in troubleshooting problems when migrating, see Troubleshooting migration.
Procedure
- Install WebSphere Application Server Version 8.5 on the
target machine. Install the same features as the earlier
release. For more information, see the documentation about installing
an application-serving environment.
- Create the migration .jar file on the target machine. See Migrating cell configurations to new host machines using the command-line tool.
- Save the current deployment manager configuration by running
the WASPreUpgrade command on the source host. See the steps about saving and archiving the configuration data
in Migrating cells across operating systems using the command-line
tools.
- Copy the migration_specific_backup directory from the WebSphere Application Server Version 6.1 or
above machine to the Version 8.5 machine.
Use the ftp command,
shared storage, or some other mechanism to copy the directory to the
new machine.
- Use the Profile Management tool or the manageprofiles command to create a WebSphere Application Server Version 8.5 profile.
For more information, see Managing profiles using the graphical user interface or manageprofiles command.
- Add the WebSphere Application Server Version 6.1 or above configuration to the Version 8.5 configuration.
Use the WASPostUpgrade command in the app_server_root/bin directory of the Version 8.5 installation to add
the Version 6.1 or above configuration to the Version 8.5 configuration.
![[AIX]](../images/aixlogo.gif)
![[HP-UX]](../images/hpux.gif)
![[Linux]](../images/linux.gif)
./WASPostUpgrade.sh /filepath/migration_specific_backup
WASPostUpgrade C:\filepath\migration_specific_backup
See WASPostUpgrade command for more
information.
The WASPostUpgrade tool records information specific to each enterprise bean it deploys
in the migration_specific_backup/WASPostUpgrade.log file.
- Modify the configuration using the WebSphere Application Server Version 8.5 administrative console.
- 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 6.1 or above machine.
- 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 6.1
or above to a remote Version 8.5 machine.