Migratable Servers
A migratable server is a Managed Server that is eligible for whole server migration. While a migratable server can host any clustered services, it's really the pinned services the server hosts that make it a migratable server. Both automatic and manual whole server migration depend on the existence of a migratable server, so the first step in configuring whole server migration is to set up migratable servers. By default, WebLogic Server creates all Managed Servers in a cluster as migratable servers. Note that a migratable server uses a floating IP address, which it needs during a whole server migration.
The key point to remember with regard to a migratable server and whole server migration is that all of the resources available ...
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