58 Migrating Applications from WebLogic, JBoss and Tomcat to WebSphere V6
may be a decision, that is more religious than technical. We suggest that you
keep your options open and use the right tools for the right task.
3.5 Migrating the site
As discussed in 3.1.2, “Migrating the different environments” on page 32, there
are three kinds of environments to migrate. In this section, we will only talk about
the runtime environments, such as testing, staging and production. There are
basically three ways to migrate these kinds of environments.
3.5.1 Switchover migration
In the switchover migration scenario, a separate computer (or cluster) is needed
to install the new environment and then perform the migration. The installation
and migration is perf ...