we have ORACLE 10Gr2 on Redhar AS LInux server version 4.X. I checked one of database init.ora have following setup: db_writer_processes = 2 filesystemio_options = asynch DISK_ASYNCH_IO = true TAPE_ASYNCH_IO = true Based on what I know "db_writer_processes " and "filesystemio_options = asynch" are exclusive. Can anyone tell me database will use whiche one? Thanks. -- //www.freelists.org/webpage/oracle-l