Re: raid 0+1 verses separating disk io

There is actually alot of discussion on RAID and its configuration. Really, only you can answer your question - armed with all of the relevant information of course. I would suggest taking a couple of hours and reading some interesting articles I found on RAID at http://www.sunworld.com once there - do a search for RAID. Some very good articles.

Darren

raff32_at_my-deja.com wrote:

> This is a question about raid and which configuration is best for
> performances on sunOS 5.6.
> I have six nine gig drives available for an oracle database and two
> oracle dba's who differ on how to achieve the best performance.
>
> dba 1: says to put all 6 disks together in a raid 0+1 configuration and
> end up with 27 gigs available in one directory mounted at ORACLE_BASE.
> He claims the striping of the disks will give faster access data and
> outperform separating indexes and data on different disks.
> (If this was true, this is the ideal scenario).
>
> dba 2: says to separate oracle executables, data, indexes and backup all
> on seperate disks. This seems like it is an out of date solution
> that will waste space. The only reason I would adopt this scenario
> is if the performance was actually better than the raid 0+1
> configuration.
>
> If anyone could provide some insight into this or perhaps point me
> to a website where such a study has been documented I would be
> very appreciative.
> Thanks a lot.
>
> Steve
>
> Sent via Deja.com http://www.deja.com/
> Before you buy.
Received on Sat Oct 23 1999 - 02:07:17 CDT