Check the following URL: https://twiki.cern.ch/twiki/bin/viewfile/PSSGroup/HAandPerf?rev=1.4&filename=ASM_metadata_30012006.html -Mark -----Original Message----- From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of hrishy Sent: Wednesday, February 25, 2009 6:16 AM To: oracle-l@xxxxxxxxxxxxx Subject: ASM tracking datafiles Hi All the docs i have read so far talk about how ASM keeps track of disks.But how does ASM keep track of datafiles and say this file belongs to this database etc. regards Hrishy -- //www.freelists.org/webpage/oracle-l