OAM 11g / OIM 11g High Availability (Active / Active) Architecture Documentation
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If you are planning to deploy Oracle Access Manager (OAM) 11g and Oracle Identity Manager (OIM) 11g in High Availability (Active – Active Cluster) then you can follow Oracle’s Enterprise Deployment Guide for Identity Management here and High Availability Guide for Oracle Fusion Middleware here
Confused or any doubts (leave comments and I’ll to answer ) !!!!!