If you have configuration instructions written for versions ranging from PostgreSQL 8.2 to 8.4, then they will work almost exactly the same from PostgreSQL 9.0 onwards. The only difference is that you will also need to specify wal_level, as just shown.
Note that the procedures covered here are not the default configuration, and they do differ from earlier releases. In PostgreSQL 9.0, the pg_standby utility is no longer required, as many of its features are now performed directly by the server.
If you prefer to continue using pg_standby with PostgreSQL 9.0, then you do not need to use the archive_cleanup_command, standby_mode, or trigger_file parameters at all.
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