> Check yur fax... Oracle does NOT recommend cooked nor raw files. In
> _ORACLE for Sun Performance Tuning Tips_ manual, it lists the tradeoffs
> between the two issues. I summarize that below.
>
> *All* high-capacity production Oracle databases I've worked with have
> been stored on a cooked fs. And believe me I've setup and/or fixed some
> really hairy Oracle7/8 configs. :) The ease of maintenance on a cooked
> fs always outweighted the performance gain on a raw fs.
>
> It is *much* cheaper to buy new hardware to support a cooked fs when it
> gets loaded, than it is to pay an admin to support and maintain an
> Oracle db on one or more raw partitions.
We use INFORMIX on customer products where I work, and I have my
doubts that the admin hassle for raw disk is worth whatever
performance gain there is.
We had one object database vender even tell us that the cooked vs. raw
issue is no longer much of an issue, modern file systems have been
tuned so that the performance difference is now minimal.
Joe Buehler
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