ASM normal redundancy vs external redundancy

Hello List,

When we test ASM with normal redudancy vs external redundancy on AIX, we got
different result of performance.

Queries on tables which reside on the tablespace that is placed with
external redudancy ASM disk were giving faster result than tables which
reside with tablespace placed with ASM normal redundancy.

Does any one has similar expreience?

Which redundancy type works for a highly OLTP database?



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Best Regards,
Syed Jaffar Hussain
Oracle ACE
8i,9i & 10g OCP DBA

http://jaffardba.blogspot.com/
http://www.oracle.com/technology/community/oracle_ace/ace1.html#hussain
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"Winners don't do different things. They do things differently."

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