Hi, thanks for the reply. gparc@xxxxxxx schrieb: > maybe you should look in alert.log file and get a clue searching > when this ARCH process was started I looked it up, there has been no single start-of-an-archiver message in the servers history. But at each shutdown, this is in the log: ------------- Sat Aug 23 12:26:39 2008 Completed: alter database dismount ARCH: Archival disabled due to shutdown: 1089 Shutting down archive processes Archiving is disabled Archive process shutdown avoided: 0 active ARCH: Archival disabled due to shutdown: 1089 Shutting down archive processes Archiving is disabled Archive process shutdown avoided: 0 active ------------- And while starting up: ------------- Sat Aug 23 12:26:58 2008 Starting ORACLE instance (normal) LICENSE_MAX_SESSION = 0 LICENSE_SESSIONS_WARNING = 0 Picked latch-free SCN scheme 3 Using LOG_ARCHIVE_DEST_1 parameter default value as /opt/oracle/product/10gR2/db/dbs/arch Autotune of undo retention is turned on. ... ------------- -- Usn's IT Blog for Linux, Oracle, Asterisk http://www.usn-it.de -- //www.freelists.org/webpage/oracle-l