Tuesday, August 12, 2014

Parameters used in the LOG_ARCHIVE_DEST_n

Brief descriptions of the parameters used in the LOG_ARCHIVE_DEST_n.

SERVICE – Specifies a valid service name for the standby database.

SYNC | ASYNC – Specifies whether the redo data is to be received at the destination before the transaction is committed. ASYNC is default.

AFFIRM | NOAFFIRM – Control whether the redo destination acknowledges received redo data. NOAFFIRM is the default for ASYNC if not specified. AFFIRM is the default for SYNC for if not specified.

NET_TIMEOUT – Specifies the time in seconds that the primary database log writer will wait for a response from the Log Network Service (LNS) before terminating the connection and marking the standby (destination) as failed. The default value is 30 seconds.

REOPEN – Specifies the time in seconds that the log writer should wait before attempting to access a previously failed standby (destination). The default is 300 seconds.

DB_UNIQUE_NAME – Unique name for the standby database

VALID_FOR(logifile,role) –Specifies that a specific log destination is valid only when the database is in a particular role.

Hope this will help you... :)

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