Are you actually experiencing a performance problem?
Are users complaining?
If not, then don't worry about it, find something else to do. :)
If so, ( and this has already been stated to you I think ) check
the wait times, don't worry about doing a lot of I/O.
If you don't know how to check the wait times, there have been
a number of web sites and papers already suggested. I'm just
chiming in to help impress on you that there are a lot of misconceptions
about tuning.
RAID 5 is fine for some databases. If you're doing mostly reads, it's
actually pretty good.
Jared
"oraora oraora" <[EMAIL PROTECTED]>
Sent by: [EMAIL PROTECTED]
07/11/2002 04:33 AM
Please respond to ORACLE-L
To: Multiple recipients of list ORACLE-L <[EMAIL PROTECTED]>
cc:
Subject: sequential reads/scattered reads
Guys,
Querying my v$session_wait shows 10 rows each DB FILE SEQUENTIAL
READ and DB FILE SCATTERED READ.
manuals explain it all b'coz of I/O.
there are 33 tables and 110 indexes in the same USERS tablespace
with only one datafile USERS01.DAT of size 12GB.
it's physically laid out in D:\oracle\data.
but the hard disk capacity is 100GB with 8 disk heads and RAID5.
will not moving the tables and indexes to seperate tablespace
reduce I/O traffic ? my manager here says that since it is
configured with RAID5 and 8 disk heads , it's not a problem.
is it so ? is he right ?
plz. clarify me. i need to explain him.
it's urgent.he is sitting on my head.
TIA.
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