Preparation of standby on a cross-platform Data Guard
Cross-platform Data Guard was introduced in Oracle 11g Release 1. We may have 32-bit primary and 64-bit standby database combinations on some platforms of 10g, but from 11g onwards it supports even heterogeneous platforms ranging from Linux/Unix to Windows or vice versa. Most of the customers choose this procedure for moving the database on a different OS. Migration is made simple by this procedure with the same incarnation of a database. Prior to moving the production to a heterogeneous platform, it is recommended to test the standby in the read-write mode for the capacity of the standby server.
Note that you must create a cross-platform standby database on the same database's release and patch ...
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