Hi, Assuming that all of the disk partitions are striped across all of the disk you probably won't see any performance difference wherever you put the files and whatever size you make them. At least nothing noticeable. If you can't change the disk layout maybe you can concentrate on scrutinising V$SQL to tune any queries that are generating too much disk activity.
Regards, Mike Hately -----Original Message----- Sent: 19 July 2002 09:58 To: Multiple recipients of list ORACLE-L Guys, the DB is on 8.1.6 / Win2K. there entire DB ( 33 tables and 110 indexes) is in USERS tablespace. the USERS tablespace has only one datafile USERS.DAT of size 12GB. it's on 8 * 10 GB HDD with RAID 5. we are facing performance bottleneck now. V$SESSION_WAIT shows many rows for DB FILE SCATTERED READ and DB FILE SEQUENTIAL READ. all these events wait for USERS.DAT to be read. it's a highly read OLTP site. So,will moving the table and index data to different tablespaces with relatively smaller datafiles ( say 1 GB ) improve performance ? OR since it is on RAID5 , will moving make any difference ? 10-20 MB of data gets added to the DB daily. if resizing/moving improves performance,what should be the size of my datafile ? kindly give me a solution guys. TIA. ____________________________________________________________________________ ________________________ This email and any attached to it are confidential and intended only for the individual or entity to which it is addressed. If you are not the intended recipient, please let us know by telephoning or emailing the sender. You should also delete the email and any attachment from your systems and should not copy the email or any attachment or disclose their content to any other person or entity. The views expressed here are not necessarily those of Churchill Insurance Group plc or its affiliates or subsidiaries. Thank you. Churchill Insurance Group plc. Company Registration Number - 2280426. England. Registered Office: Churchill Court, Westmoreland Road, Bromley, Kent BR1 1DP. -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Hately 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).
