Synopsis

Values:TRUE or FALSE

Default:FALSE

Specifies whether Recovery Manager uses I/O slaves to back up, copy, or restore data to tape. When BACKUP_TAPE_IO_SLAVES is set to TRUE, an I/O slave process is used to write to or read from a tape device. When this parameter is set to FALSE (the default), I/O slaves are not used for backups; instead, the shadow process engaged in the backup accesses the tape device. Typically, I/O slaves are used to simulate asynchronous I/O on platforms that either do not support asynchronous I/O or implement it inefficiently. However, I/O slaves can be used even when actual asynchronous I/O is being used. In that case, the I/O slaves will use asynchronous I/O.