Fair question Let me elaborate. The command was simply to test the speed at which data can be written to disk. Postgre comes into play with the monitoring application itself. Information pertaining to the 5000+ devices being monitored is sent to the monitoring application and written to the Postgre database. The issue we're having is that around 10% (or so) of the data received is being discarded because according to the vendor (SolarWinds) it cannot be written to disk fast enough. Simply too much data coming in and nowhere to go so it gets dropped. -- View this message in context: http://postgresql.nabble.com/Disk-I-O-Question-tp5873364p5873425.html Sent from the PostgreSQL - general mailing list archive at Nabble.com. -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general