Migrating cell configurations to new host machines using the command-line tool

You can migrate cell configurations from a previous version of WebSphere® Application Server that is hosted on one machine to an instance of WebSphere Application Server Version 8.5 that is hosted on a different machine. The source and target host machines do not need to run the same operating system.

1. Back up the deployment manager and all old nodes
   In case of failure during the migration, save the current deployment manager and node configuration to a file that you can use later for recovery purposes.
   1. Change to the deployment_manager_profile_root/bin directory.
   2. Run the backupConfig command with the appropriate parameters and save the current profile configuration to a file.
      For example:

      

      previous_version_app_server_root\v70dmgr01\bin\
      backupConfig.bat \mybackup_old_host\v70dmgr01backupBeforeV85migration.zip 
      -username myuser -password mypass -nostop

      

      previous_version_app_server_root/v70dmgr01/bin/backupConfig.sh 
      /mybackup_old_host/v70dmgr01backupBeforeV85migration.zip -username 
      myuser -password mypass -nostop

      where mybackup_old_host is the location where the configuration restore points are stored.
   3. For each node in the configuration, change to the node_profile_root/bin directory.
   4. Run the backupConfig command with the appropriate parameters and save the current profile configuration to a file.
      For example:

      

      previous_version_app_server_root\v70node01\bin\backupConfig.bat 
      \mybackup_old_host\v70node01backupBeforeV85migration.zip -username
       myuser -password mypass -nostop

      

      previous_version_app_server_root/v70node01
      /bin/backupConfig.sh /mybackup_old_host/v70node01rbackupBeforeV85migration.zip 
      -username myuser -password mypass -nostop

2. Install WebSphere Application Server Version 8.5

   Install WebSphere Application Server Network Deployment, Base, or Express® Version 8.5 onto each target host in a new directory. For more information, see the documentation about installing an application-serving environment.

3. Create the remote migration .jar file
   This .jar file contains the files necessary to run the WASPreUpgrade command on a system which does not have WebSphere Application Server Version 8.5 installed.

   Note: You must create the remote migration .jar file on the same operating system and architecture as you installed the source. Because the archive that is generated contains operating system specific code, it only executes on this architecture.

   Video: Creating a remote migration JAR file (V8.0)

   1. Identify the operating system and architecture of the source profile.
      If the operating system and architecture of the source profile is different from the operation system or the architecture of the target profile, then you must install WebSphere Application Server Version 8.5 on a system that matches the source profile before creating the remote migration jar. Once you have generated the remote migration jar, it will work on any system which matches the operating system and architecture.
   2. Create the remote migration .jar.
      1. In the command prompt, enter: cd $WAS_HOME/bin/migration/bin
      2. To create the .jar file, run: createRemoteMigrJar.bat(sh) -targetDir <dir for the remote migration jar>. This creates the following file: WAS_V85_OS.arch_RemoteMigrSupport.zip. For example: WAS_V85_windows.x86_RemoteMigrSupport.zip
   3. Prepare the remote system for the WasPreUpgrade command.
      1. Send the .jar file to the system where your source profile resides.
      2. Extract the file to a temporary location.
      3. Cd to the bin directory in the temporary location.
      4. You are now ready to run the WASPreUpgrade command against the source profile. However, do not issue this command until you are told to do so in a later step.
4. Create the target deployment manager profile
   The target deployment manager profile is a new deployment manager profile that is the target of the migration.

   Avoid trouble: The Version 8.5 cell and node names must match the cell and node names in the previous configuration. If you create cells and nodes with new cell and node names, then the migration will fail.
   1. Run the manageprofiles command with the appropriate parameters to create a deployment manager profile.
      For example:

      

      version_8.5_install_root\bin\manageprofiles.bat -create 
      -profileName v70tov85dmgr01 -templatePath app_server_root\profileTemplates\
      management -serverType DEPLOYMENT_MANAGER -nodeName currentDmgrNodeName 
      -cellName currentCellName -hostName mydmgrhost.company.com

      

      version_8.5_install_root/bin/manageprofiles.sh -create 
      -profileName v70tov85dmgr01 -templatePath /opt/WebSphereV85/profileTemplates/
      management -serverType DEPLOYMENT_MANAGER -nodeName currentDmgrNodeName 
      -cellName currentCellName -hostName mydmgrhost.company.com

5. Save the current deployment manager configuration to the migration backup directory
   To save the current deployment manager configuration to the migration backup directory, run the WASPreUpgrade command. The WASPreUpgrade command does not change the old configuration.
   1. Run the WASPreUpgrade command with the -machineChange true parameter to save the current deployment manager configuration to a migration backup directory.
      For example:

      

      <path to remote migration jar>\migration\bin\WASPreUpgrade.bat \mybackup_old_host\v70tov85dmgr01 
      app_server_root -oldProfile 70dmgr01 -machineChange true

      

      <path to remote migration jar>/migration/bin/WASPreUpgrade.sh /mybackup_old_host/v70tov85dmgr01 
      /opt/WebSphereV70 -oldProfile 70dmgr01 -machineChange true

      where mybackup_old_host is the directory to which the profile configuration files are copied in preparation for the migration to the new host.

      If you are migrating from Version 8.0 to Version 8.5 and your profile is a deployment manager, Version 8.0 profile is stopped when WASPreUpgrade runs. The deployment manager is only started before WASPreUpgrade completes if you provide -keepDmgrEnabled true on the command line or specify the corresponding option in the Migration wizard.

      Avoid trouble: If you specify -machineChange true, you must update the job manager URL for all resources (such as other deployment managers or application servers) that are managed by the job manager function of the Version 8.0 deployment manager after the migration.
   2. Review warnings or errors in the console output and WASPreUpgrade logs.
      After the WASPreUpgrade command is complete, check the console output for Failed with errors or Completed with warnings messages. Then, check the following log files for any warnings or errors:

      • mybackup_old_host/v70tov85dmgr01/logs/WASPreMigrationSummary.log
      • mybackup_old_host/v70tov85dmgr01/logs/WASPreUpgrade.timestamp.log
      • mybackup_old_host/v70tov85dmgr01/logs/WASPreUpgrade.trace

      If there are errors, fix the errors and run the WASPreUpgrade command again. Check whether the warnings affect any other migration or runtime activities on Version 8.5.

      If the command completed successfully, it is not necessary to check the logs for errors or warnings.

6. Archive the backup directory created by the WASPreUpgrade command
   Avoid trouble: Do not use the Windows archive tool because it is not compatible with a WebSphere Application Server migration.
   1. Use the archive tool of your choice to create a compressed file of the backup directory.
      For example:

      cd /mybackup_old_host
      /opt/WebSphereV70/java/bin/jar -cf v70tov85dmgr01.jar v70tov85dmgr01/

   2. Move the archived file to the target machine.
   3. Create a directory on the target machine and extract the archived file to the new directory.
      For example:

      mkdir /mybackup_new_host
      cd /mybackup_new_host
      /opt/WebSphereV85/java/bin/jar -xf v70tov85dmgr01.jar

      where mybackup_new_host is the directory to which you are migrating your files.
7. Restore the previous deployment manager configuration
   Run the WASPostUpgrade command from the new deployment manager profile bin directory to restore the previous deployment manager configuration that you saved in the migration backup directory. If you use the options shown in the example, all ports are carried forward, and all applications are installed.
   1. Run the WASPostUpgrade command to restore the saved deployment manager configuration into the new Version 8.5 deployment manager profile.
      For example:

      

      version_8.5_install_root\bin\WASPostUpgrade.bat \
      mybackup_new_host\v70tov85dmgr01 -profileName v70tov85dmgr01 -oldProfile 
      70dmgr01 -replacePorts TRUE -backupConfig TRUE -scriptCompatibility TRUE 
      -keepDmgrEnabled TRUE -username myuser -password mypass

      

      version_8.5_install_root/bin/WASPostUpgrade.sh /
      mybackup_new_host/v70tov85dmgr01 -profileName v70tov85dmgr01 -oldProfile
       70dmgr01 -replacePorts TRUE -backupConfig TRUE -scriptCompatibility TRUE 
      -keepDmgrEnabled TRUE -username myuser -password mypass

      where mybackup_new_host is the directory from which the source profile configuration files are migrated.
   2. Review warnings or errors in the console output and WASPostUpgrade logs.
      After the WASPostUpgrade command is complete, check the console output for Failed with errors or Completed with warnings messages. Then, check the following log files for any warnings or errors:

      • mybackup_new_host/v70tov85dmgr01/logs/WASPostMigrationSummary.log
      • mybackup_new_host/v70tov85dmgr01/logs/WASPostUpgrade.target profile name.timestamp.log
      • mybackup_new_host/v70tov85dmgr01/logs/WASPostUpgrade.target profile name.trace

      If there are errors, fix the errors and run the WASPostUpgrade command again. Check whether the warnings affect any other migration or runtime activities on Version 8.5.

      If the command completed successfully, it is not necessary to check the logs for errors or warnings.

   Avoid trouble:

   • The script compatibility flag on your deployment manager must be the same as the flag that you use on your clients. Save the value of the script compatibility flag for later use.
   • After the WASPostUpgrade command completes successfully, do not start the new deployment manager. You must complete a few more steps before starting the new deployment manager.
8. Save the Version 8.5 migrated deployment manager configuration to a file
   To save theVersion 8.5 migrated deployment manager configuration to a file, run the backupConfig command on the Version 8.5 deployment manager.

   Avoid trouble: If you encounter a node migration failure, you can restore the cell configuration to the point before the failure. You can apply remedial actions and the attempt the node migration again.
   1. Change to the deployment_manager_profile_root/bin directory
   2. Run the backupConfig command with the appropriate parameters and save the Version 8.5 profile configuration to a file.
      For example:

      

      version_8.5_profile_root\profiles\v70tov85dmgr01\
      bin\backupConfig.bat \mybackup_new_host\v70tov85dmgr01backupMigratedDmgrOnly.zip 
      -username myuser -password mypass

      

      version_8.5_profile_root/profiles/v70tov85dmgr01/bin/backupConfig.sh /
      mybackup_new_host/v70tov85dmgr01backupMigratedDmgrOnly.zip -username 
      myuser -password mypass

      where mybackup_new_host is the location where the configuration restore points are stored.
9. Stop and disable the deployment manager on the old host
   Ensure that you do not use the deployment manager on the old host.

   For more information, see clientUpgrade command.

   1. Stop the deployment manager on the old host.
   2. Disable the deployment manager on the old host.
      To disable this deployment manager, you must rename the associated serverindex.xml file as indicated in the following information:

      Old name

      $PROFILE_ROOT/config/cells/cell_name/nodes/deployment_manager_node_name/serverindex.xml

      New name

      $PROFILE_ROOT/config/cells/cell_name/nodes/deployment_manager_node_name/serverindex.xml_disabled

10. Start the Version 8.5 deployment manager
    Start the deployment manager on the new host.
    1. Change to the new Version 8.5 deployment_manager_profile_root/bin directory.
    2. Run the startManager command.
    3. While the deployment manager is running, check the SystemOut.log file for warnings or errors.
       Note: This topic references one or more of the application server log files. As a recommended alternative, you can configure the server to use the High Performance Extensible Logging (HPEL) log and trace infrastructure instead of using SystemOut.log , SystemErr.log, trace.log, and activity.log files on distributed and IBM i systems. You can also use HPEL in conjunction with your native z/OS® logging facilities. If you are using HPEL, you can access all of your log and trace information using the LogViewer command-line tool from your server profile bin directory. See the information about using HPEL to troubleshoot applications for more information on using HPEL.
       Check the warnings to see if they affect any node migration or runtime activities when the Version 8.5 deployment manager is started.
    4. Ensure that the Version 8.5 deployment manager starts successfully.
11. Manually synchronize all nodes
    You must synchronize the old nodes to the new Version 8.5 deployment manager. Ensure that the Version 8.5 deployment manager on the new host is running. You must log into the machine that contains the old nodes and run the syncNode command.
    1. Stop the node agent.
    2. Obtain the deployment manager host and port number and update the node_agent_profile_root/properties/wsadmin.properties file.
       Change the com.ibm.ws.scripting.host value to the new host. Change the com.ibm.ws.scripting.port value to the new port.
    3. Run the syncNode command from the bin directory.
       For example:

       

       node_agent_install_root\bin\syncNode.bat myV85DmgrHost.mycompany.com 8879 -username myuser -password mypass

       

       node_agent_install_root/bin/syncNode.sh myV85DmgrHost.mycompany.com 8879 -username myuser -password mypass

    4. Start the node agent if synchronization is successful.
12. Migrate application client installations
    Migrate client resources to Version 8.5-level resources. If the source WebSphere Application client is Version 6.1, you also must run the WASPreUpgrade and WASPostUpgrade commands to migrate the existing security settings.

    Avoid trouble: The clientUpgrade command is not supported for cross operating system migrations. This step applies to WebSphere Application client host machines only. On any of your client host machines, you must run the same host migration.
    1. Identify all client hosts that you must migrate.
    2. Install the WebSphere Version 8.5 Application client.
    3. Run the clientUpgrade command on your application client enterprise archive (EAR) files.
    4. Run the Version 8.5 WASPreUpgrade command to save the Application client security settings to a migration backup directory.
       For example:

       /opt/AppClientV85/bin/WASPreUpgrade.sh /mybackup_client/v70clientTov85 /opt/AppClientV70

    5. Run the Version 8.5 WASPostUpgrade command to restore the Application client security settings to the new Version 8.5 client.
       For example:

       /opt/AppClientV85/bin/WASPostUpgrade.sh /mybackup_client/v6clientToV85 

       Avoid trouble: The script compatibility flag on your deployment manager must be the same as the flag that you use on your clients.
13. Migrate nodes
    These steps apply to cross-machine migrations only. If you are not completing a cross-machine migration of a node, see the information about migrating nodes in Migrating cells using the command-line tools. Ensure that the Version 8.5 deployment manager is running. For each node that you plan to migrate to Version 8.5, perform the following steps:

    Avoid trouble: For the migration to be successful, you must use the same source node name and cell name for each node that you migrate to Version 8.5 or later.
    1. Install WebSphere Application Server Version 8.5.
       Install the correct version of WebSphere Application Server Network Deployment, Base, or Express onto each target host. For more information, see the documentation about installing an application-serving environment.
    2. Create the target node profile. Run the manageprofiles command with the appropriate parameters to create a new managed profile.
       For example:

       

       version_8.5_install_root\bin\manageprofiles.bat 
       -create -profileName node1 -templatePath \opt\
       WebSphereV85\profileTemplates\managed -nodeName currentNode1Name 
       -cellName currentCellName -hostName mynode1host.company.com

       

       version_8.5_install_root/bin/manageprofiles.sh 
       -create -profileName node1 -templatePath 
       /opt/WebSphereV85/profileTemplates/managed -nodeName currentNode1Name 
       -cellName currentCellName -hostName mynode1host.company.com

    3. Use the remote migration .jar file that you created for migrating the deployment manager to make the WASPreUpgrade command available on the current node machine.
       Note: This step needs be done only if the source node and deployment manager are not on the same machine, and this step can be done only if the machine architecture is the same.

       For more information, see step 3 of this scenario, Create the remote migration .jar file.
    4. Run the WASPreUpgrade command with the -machineChange true parameter to save the current node X configuration to a migration backup directory. Choose a new directory for the backup files.
       For example:

       

       <path to remote migration jar>\migration\bin\WASPreUpgrade.bat \mybackup_old_host\v70tov85node1 
       \opt\WebSphereV70 -oldProfile 70node1 -machineChange true

       

       <path to remote migration jar>/migration/bin/WASPreUpgrade.sh /mybackup_old_host/v70tov85node1 
       /opt/WebSphereV70 -oldProfile 70node1 -machineChange true

    5. Check the WASPreUpgrade console output for error and warning messages.
       You might find the following messages: Failed with errors or Completed with warnings. Also, look in the following log files for error or warning messages:

       • myback_old_host/v70tov85node1/logs/WASPreMigrationSummary.log
       • myback_old_host/v70tov85node1/logs/WASPreUpgrade.< timestamp >.log
       • myback_old_host/v70tov85node1/logs/WASPreUpgrade.trace

       If the WASPreUpgrade command is successful, you do not need to check the log files for error or warning messages.

    6. Use the archive tool of your choice to create a compressed file of the backup directory that was created by the WASPreUpgrade command.
       For example:

       

       cd /mybackup_old_host
       /opt/WebSphereV70/java/bin/jar -cf v70tov85node1.jar v70tov85node1/

    7. Move the archived file to the target machine.
    8. Create a directory on the target machine and extract the archived file to the new directory.
       For example:

       mkdir /mybackup_new_host
       cd /mybackup_new_host
       /opt/WebSphereV85/java/bin/jar -xf v70tov85dmgr01.jar

       where mybackup_new_host is the directory from which the profile configuration files are migrated.
    9. Stop the application servers on the old node, then stop the node agent on the old node.
    10. Stop and disable the node on the old host.
        Ensure that you do not use the node on the old host. To disable the node, you must rename the associated serverindex.xml file as indicated in the following information:

        Old name

        $PROFILE_ROOT/config/cells/cell_name/nodes/node_X/serverindex.xml

        New name

        $PROFILE_ROOT/config/cells/cell_name/nodes/node_X/serverindex.xml_disabled

    11. Run the WASPostUpgrade command to restore the saved node X configuration into the new Version 8.5 managed profile.
        For example:

        

        version_8.5_install_root\bin\WASPostUpgrade.bat \
        mybackup_new_host\v70tov85node1 -profileName v70tov85node1 
        -oldProfile 70node1 -replacePorts TRUE 
        -backupConfig TRUE -includeApps TRUE -scriptCompatibility 
        TRUE -username myuser -password mypass

        

        version_8.5_install_root/bin/WASPostUpgrade.sh /
        mybackup_new_host/v70tov85node1 -profileName v70tov85node1 
        -oldProfile 70node1 -replacePorts TRUE -backupConfig 
        TRUE -includeApps TRUE -scriptCompatibility TRUE 
        -username myuser -password mypass

        Avoid trouble: The script compatibility flag on your deployment manager must be the same as the flag that you use on your clients.
    12. Check the WASPostUpgrade console output for the following messages.
        You might find the following messages: Failed with errors or Completed with warnings. Also, look in the following log files for errors or warning messages:

        • mybackup_new_host/v70tov85node1/logs/WASPostMigrationSummary.log
        • mybackup_new_host/v70tov85node1/logs/WASPostUpgrade. <target profile>.< timestamp >.log
        • mybackup_new_host/v70tov85node1/logs/WASPostUpgrade.< target profile name >.trace

        Note: If the WASPostUpgrade command fails, you might need to restore the Version 8.5 deployment manager from the backup configuration file. If the WASPostUpgrade command processing ran the syncNode command, then the deployment manager is aware that the node X has been migrated. The node X cannot be migrated again until the deployment manager has been restored to the state before the node X migration.
    13. Check the Version 8.5 deployment manager SystemOut.log file for error or warning messages.
        Note: This topic references one or more of the application server log files. As a recommended alternative, you can configure the server to use the High Performance Extensible Logging (HPEL) log and trace infrastructure instead of using SystemOut.log , SystemErr.log, trace.log, and activity.log files on distributed and IBM i systems. You can also use HPEL in conjunction with your native z/OS logging facilities. If you are using HPEL, you can access all of your log and trace information using the LogViewer command-line tool from your server profile bin directory. See the information about using HPEL to troubleshoot applications for more information on using HPEL.
    14. Start the migrated Version 8.5 node X agent.
    15. Check the Version 8.5 deployment manager and node X SystemOut.log for error or warning messages.
    16. Optional: Synchronize the cell if the auto synchronization process is not enabled.
    17. Optional: Start the appropriate application servers on Version 8.5 migrated node X.
    18. Run the backupConfig command and save the Version 8.5 profile configuration to a file.
        For example:

        

        version_8.5_profile_root\v70tov85node1\bin\backupConfig.bat 
        \mybackup_new_host\v70tov85node1.zip -username myuser 
        -password mypass -nostop

        

        version_8.5_profile_root/v70tov85node1/bin/backupConfig.sh 
        /mybackup_new_host/v70tov85node1.zip -username myuser 
        -password mypass -nostop

        Each time you run the backupConfig command on a specific node, use a new backup file name.
    19. Save the deployment manager configuration using the backupConfig command.
        On the Version 8.5 deployment manager host, change to the deployment_manager_profile_root/bin directory. Run the backupConfig command and save the Version 8.5 profile configuration to a file.
        For example:

        

        version_8.5_profile_root\v70tov85dmgr01\bin\backupConfig.bat 
        \mybackup_new_host\v70tov85dmgr01backupMigratedDmgrPlusNodeX.zip 
        -username myuser -password mypass

        

        version_8.5_profile_root/v70tov85dmgr01/bin/backupConfig.sh 
        /mybackup_new_host/v70tov85dmgr01backupMigratedDmgrPlusNodeX.zip 
        -username myuser -password mypass

        Note: For each node that you migrate, backup the Version 8.5 Deployment Manager configuration to a new backup file.
    20. Repeat the previous steps for additional nodes.
14. Migrate plug-ins for web servers

    The product supports several different web servers, as described in the system requirements. For installation information, see the documentation for your web server type and version.

    1. Ensure that the Version 8.5 deployment manager is running.
    2. Update the version of the web server plug-in that is used in the cell.
    3. For all application servers in the cell that you want to be served by the web server, create a new web server definition for web server plug-in.
       For more information about creating web server definitions, see Implementing a web server plug-in.