RE: RE: sequential reads/scattered reads

2002-07-11 Thread Johnson, Michael
Are you sure that these are the ones that are slowing the system down ? Did you try to find out at what time of the day the system is really slow and execute your wait/event queries at that time ? Did you get a slice of 10046 data when the application was actually running slow ?You could be

Re: Re: sequential reads/scattered reads

2002-07-11 Thread Thomas Day
If your D partition is just a logical device then, 'No'. Only moving to a different physical device will reduce I/O contention. oraora

RE: Re: sequential reads/scattered reads

2002-07-11 Thread Ganesh Raja
Hi, Moving to different Tablespaces will not do u any good. To learn more there was big List of Disscussion on... Comp.databases.oracle.server [ Google Groups http://groups.google.com ] You can go and seasrch there seperating Tables and Indexes. HTH Best Regards, Ganesh R Tel : +971 (4)

Re: Re: sequential reads/scattered reads

2002-07-11 Thread oraora oraora
Thanx Thomas . i am pretty new to RAID. will not moving my tables and indexes to seperate tablespace reduce my i/o ? my h/w setup is: there is a logical partition D: of size 80GB with RAID5. is it enough that i move to seperate tablespace ? os should i create another partition like D: and put

Re: RE: sequential reads/scattered reads

2002-07-11 Thread oraora oraora
Cary Millsap, i selected the top 25 SQL statements in the system over various periods . all are SELECT statements only waiting for reads. querying v$session_wait also shows more than 10 records each for DB FILE SCATTERED READS and DB FILE SEQUENTIAL READS.does not it mean that it's b'coz of I