On Nov 24, 2007 5:09 AM, Clodoaldo <clodoaldo.pinto.neto@gmail.com> wrote:
> I will build a cheap server and I'm in doubt about what would the the
> best for performance:
>
> 1 - everything in one lonely fast 10,000 rpm Raptor HD;
>
> 2 - two cheap 7,200 rpm 16MB cache HDs like this:
>
> disk 1 - system and pg_xlog
> disk 2 - pg_data without pg_xlog
> or a better arrange suggested by you;
>
> 3 - The two cheap HDs above in Raid 0.
From a DBA perspective, none of those seem like a good choice, as
there's no redundancy.
I'd make the two 7200 RPM drives a RAID-1 and have some redundancy so
a single disk failure wouldn't lose all my data. then I'd start
buying more drives and a good RAID controller if I needed more
performance.
