Re: Hardware purchase question

Mitch Pirtle <mitch.pirtle@gmail.com>

From: Mitch Pirtle <mitch.pirtle@gmail.com>
To: Madison Kelly <linux@alteeve.com>
Cc: pgsql-performance@postgresql.org
Date: 2005-01-03T20:44:44Z
Lists: pgsql-performance
You are right, I now remember that setup was originally called "RAID
10 plus 1", and I believe is was an incorrect statement from an
overzealous salesman ;-)

Thanks for the clarification!

- Mitch

On Mon, 03 Jan 2005 15:19:04 -0500, Madison Kelly <linux@alteeve.com> wrote:
> Madison Kelly wrote:
> >   Nope, Raid 10 (one zero) is a mirror is stripes, no parity. with r10
> 
> Woops, that should be "mirror of stripes".
> 
> By the way, what you are thinking of is possible, it would be 51 (five
> one; a raid 5 built on mirrors) or 15 (a mirror of raid 5 arrays).
> Always be careful, 10 and 01 are also not the same. You want to think
> carefully about what you want out of your array before building it.