Greetings, This is a HP-UX 11.23 machine with 30 or so 10g & 9i databases on it. The problem was one volume's space maxing out. Found 4 10.2.0.3 db's with 2Gb+ MMON trace files with date stamps over 1 month old. Deleted these files and cleaned house on several others db's. Checking disk space shows the MMON trace file space was not released. I will look into note 422954.1 to try to avoid a recurrence, but in the mean time I would rather not have to shutdown a dozen db's to find the 4 that had the MMON problem. Is there any method for finding which databases have these deleted trace files still open? Is there a way to close out a MMON trace without shutting down the db? Thanks, Mike Hand -- //www.freelists.org/webpage/oracle-l