WebSphere Enterprise Service Bus, Version 6.2.0 Operating Systems: AIX, HP-UX, i5/OS, Linux, Solaris, Windows


Migrating a cluster

To migrate a cluster, migrate each profile containing a member of that cluster one at a time. The migration requires extra steps not required for a non-clustered environment.

Before you begin

You must have an existing cell containing at least one cluster running on an older version of WebSphere® ESB (for example, version 6.0.x or 6.1.x) that you wish to migrate to a newer version (for example, version 6.2). In addition, you must have installed the new version of WebSphere ESB.
Important: In a cluster, version 6.0.x or 6.1.x members and version 6.2 members must never run at the same time. All version 6.0.x or 6.1.x cluster members must be stopped before you start the first version 6.2 cluster member. Also, once you start a version 6.2 cluster member, do not start any version 6.0.x or 6.1.x cluster members in that cluster.

About this task

Following these steps will ensure that you retain cluster functionality on the new version of WebSphere ESB.
Procedure
  1. Migrate the deployment manager. Follow one of the instruction sets listed in Migrating a deployment manager to complete this task.
  2. Make sure that the new deployment manager is running.
  3. Identify the profiles involved.
    1. Identify an older version profile that contains cluster members.
    2. Identify which other clusters this profile contributes to; that is, if the profile defines servers that are members of any other clusters, identify those clusters.
    3. Identify all other profiles in the same cell that contribute cluster members to any of the clusters identified in step 3.b.
    4. Identify all the node agents and process servers defined by any of the profiles identified in step 3.c.
    All of the profiles identified in step 3.c, and all of the corresponding node agents and servers identified in step 3.d will be involved in the migration.
  4. Stop all the node agents and servers identified in step 3.d.
  5. Migrate each profile identified in step 3.c, one at a time, but do not start any new agents or servers. To do so, follow one of the instruction sets listed in either Migrating cluster members using the migration wizard or Migrating cluster members using the command-line tools.
  6. On the system that hosts the WebSphere ESB version 6.2 deployment manager profile, navigate to the install_dir/util directory. This directory contains the WBIProfileUpgrade script, WBIProfileUpgrade.ant.
  7. Run WBIProfileUpgrade for each cluster defined in step 3.b. For instructions on running WBIProfileUpgrade, see WBIProfileUpgrade script.
  8. If you are migrating a cluster that has Business Space configured, you must upgrade the associated databases manually at this point. See Upgrading the Business Space database manually.
  9. Start all the new (migrated) node agents and servers that are members of the cluster.

Results

The cluster is now migrated to the new version of WebSphere ESB.

What to do next

Verify that the migration has been successful.

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Timestamp icon Last updated: 21 June 2010


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