Hello List, I'm planning an upgrade of four databases on one server from 7.3.4 to 8.1.7 on Solaris. We are in the initial stages of implementing a Storage Area Network (SAN) project, initially 10TB on EMC hardware. The database server will use the SAN for its storage so I will have no decision on where datafile are actually stored (those involved in a SAN implementation know what I mean). So... I'm looking at the OFA docs - where datafiles from different databases are on different mount points mostly for I/O purposes e.g.: Non SAN OFA: md03/ oradata/ db_1/ system01 data01 control01 redoG1M1 redoG2M1 db_2/ system01 data01 control01 redoG1M1 redoG2M1 md04/ oradata/ db_1/ index01 temp01 control02 redoG1M2 redoG2M2 db_2/ index01 temp01 control02 redoG1M2 redoG2M2 ........ In a SAN implementation, it seems to me that since I/O is no longer a parameter I can control, why not group each database on its own mount point e.g.: md03/ oradata/ db_1/ system01 data01 index01 temp01 control01 control02 redoG1M1 redoG1M2 redoG2M1 redoG2M2 md04/ oradata/ db_2/ system01 data01 index01 temp01 control01 control02 redoG1M1 redoG1M2 redoG2M1 redoG2M2 I know it looks scary. Lets say I separate the control files on separate mount points. In reality the SAN puts the files all over the place, making copies on multiple volumes, so I think I'm fooling myself by thinking I'm buying anything by using separate mount points. Any thoughts? Anyone set up a dir structure using a SAN. Admin seems simpler the second way. Thanks Mike Lanteigne -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Lanteigne, Mike INET: [EMAIL PROTECTED] Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists -------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).