Overview of migrating the WebSphere Commerce application using the Migration wizard

Migrating the application tier is the second step in the migration process. Use the Migration wizard to migrate the WebSphere Commerce application.

Before you begin

Ensure you have successfully migrated the database tier.

If you are migrating the application to a new system, ensure the following tasks are completed:

If you are migrating to new hardware, you must complete the following tasks prior to migrating:
- Install the Remote WebSphere Commerce Management Utilities Version 7 on the source WebSphere Commerce system.
- Back up the WebSphere Commerce EAR, and configuration.
- Move the backup files to the target WebSphere Commerce Version 7.0 system.

Note: If your previous version of WebSphere Commerce used WebSphere Application Server Network Deployment V6.1, the new WebSphere Commerce System must use WebSphere Application Server Network Deployment Version 7.0.0.3, or higher version 7.0 fix pack. This is a WebSphere Application Server limitation.

About this task

The following diagram depicts the application migration flow.
Graphical representation of the application migration flow.

The WebSphere Application Server has retained all parameters for WebSphere Commerce Version 6 except the following parameters which have been updated for better performance with Version 7.

The default threshold value has changed from 600 (seconds) to 1800 (seconds). Doing so delays the timeout exception while the store is publishing; the exception will occur after 30 minutes of inactivity, instead of 10 minutes.
To prevent the "classes not jitted" error, -Xjit:codetotal=131072 has been appended to each of the Java Virtual Machine arguments.
Note: This update does not apply to Solaris Operating Systems.
For better SSL performance, all the WebContainer DefaultSecure transport channels have been disabled.
The Java Virtual Machine property com.ibm.ws.webservices.searchForAppServer has been set to true. This enables iFix PK69577 for WebSphere Application Server.
The Java Virtual Machine property com.ibm.ws.cache.CacheConfig.cascadeCachespecProperties has been set to true. This enables fix PK38811 for WebSphere Application Server.
The WebContainer property HideSessionValues has been set to true. This enables iFix PK11017 for WebSphere Application Server.

If migrating from WebSphere Commerce Version 5.6.1 to Version 7, all of the parameters on the WebSphere Application Server are refreshed with default values for Version 7.

Note: The parameters at cell-level and node-level stay the same.