Re: Raw device use-- opinions?

Carmen Iannacone wrote:
>
> I have read and heard different views on the use
> of raw device I/O. I was wondering if there was
> a summary of DBA's positions on it.
>
> Any opinions?

From a performance point of view, I believe it is still the best option. Make sure you are using other platform-specific I/O tweaks as well - eg async I/O, list I/O, post-wait drivers etc where available.

Good disk management software (eg a Volume Manager package) means that you
can create/resize/delete raw partitions without having to reformat your disk.
This removes most of the problems associated with managing raw disk.

-- 
Alan Burlison
alanburlison_at_unn.unisys.com

My opinions may be incorrect, but they are my own.