A Sun Java System Application Server 7.x Enterprise Edition (EE) cluster 
   configuration upgrade to Sun Java System Application Server 8.1 
   Enterprise Edition requires a valid 
   clinstance.conf file. The Upgrade Tool assumes 
   that the clinstance.conf file is an accurate 
   reflection of the 7.x EE cluster. If, for some reason, this 
   file does not accurately represent the actual cluster 
   configuration, the cluster definition must be manually edited 
   before the upgrade can be performed.
Use the Transfer Cluster Configurations screen to specify the cluster configuration file(s) that need to be migrated to the new installation.
clinstance.conf cluster file, which contains the 
    cluster configuration information to be migrated.