| Help - Object Creation and I/O reduction [message #181427] |
Mon, 10 July 2006 01:48  |
kumarsz
Messages: 180
Registered: March 2005
Location: canada
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Senior Member |
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Hi,
Oracle9i Enterprise Edition Release 9.2.0.6.0
To reduce I/O contention and get good performance which option is best among the following for creating objects in two
different environments - 1) Using SAN 2)not using SAN
file same tablespace same disk same
file different tablespace different disk same
file different tablespace different disk different
Thanks and Regards,
Pratap
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| Re: Help - Object Creation and I/O reduction [message #181522 is a reply to message #181427] |
Mon, 10 July 2006 06:56  |
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Mahesh Rajendran
Messages: 10708
Registered: March 2002
Location: oracleDocoVille
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Senior Member
Account Moderator |
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SAN or NOT SAN,
all your disk are striped/mirrored. Right?
Seperating table and index in different tablespaces does not help much (for performance.But very useful for administration. still, you need to keep the individual datafiles across multiple disks).
I would group them based onn application/volume etc.
All lookup tables/ small tables in a small_tablespace, large tables in a large_tablespace (Ofcourse on different disks.)
I would also consider my backup options.Having objects in seperate tablespaces, facilitate backup windows.
>>file different tablespace different
You cannot control or make an object to goto a particular datafile.
All you can do is, place the object in a particular tablespace.
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