Re: With 4 disks should I go for RAID 5 or RAID 10 - Mailing list pgsql-performance

On Dec 26, 2007, at 10:21 AM, Bill Moran wrote:

> I snipped the rest of your message because none of it matters.
> Never use
> RAID 5 on a database system.  Ever.  There is absolutely NO reason to
> every put yourself through that much suffering.  If you hate yourself
> that much just commit suicide, it's less drastic.

Once you hit 14 or more spindles, the difference between RAID10 and
RAID5 (or preferably RAID6) is minimal.

In your 4 disk scenario, I'd vote RAID10.