If you are using disk replication to materialize your standby database, work with your disk replication vendor to provide on-demand or “snapshot” copies of your primary database and log files. You will also need to work with your primary database vendor to determine exactly what files and steps must be taken to successfully execute the standby database from snapshot file copies.
The snapshot log file copies cannot be the same target
files as the synchronous mirror of the log files used for ongoing
replication. Once copied, the snapshot files at the standby site
will be owned, and written to, by the standby database. The synchronous
mirror of the log files must continue to be active copies of the
primary database log files.