RE: How many of you use S.A.M.E?

I think that is usually only true if you are flooding your cache, in which case the cache just becomes an unnecessary extra step on the way to the disk. If you're not flooding the cache, then it should help dramatically with performance - if you're getting cache hits of course. Problem is that your db cache is (hopefully) accounting for most of your frequently accessed blocks (cache hits) so the SAN cache hit ratio will likely be much lower since it is getting much less predictable I/O requests.  

...don't forget redo logging in this assessment.    

Privileged/Confidential Information may be contained in this message or attachments hereto. Please advise immediately if you or your employer do not consent to Internet email for messages of this kind. Opinions, conclusions and other information in this message that do not relate to the official business of this company shall be understood as neither given nor endorsed by it.

--
http://www.freelists.org/webpage/oracle-l