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.  

From: oracle-l-bounce_at_freelists.org
[mailto:oracle-l-bounce_at_freelists.org] On Behalf Of amonte    

BTW I also heard quite a few time that disabling the write cache improves perormance but is that ritten anywhere? Imagine I tell the SAN admin to disable the cache he would probably say... "WTF are you talking about" :-P  

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