Re: [Testperf-general] dbt2 & opteron performance

On Thu, 28 Jul 2005 17:17:25 -0500
"Jim C. Nasby" <decibel@decibel.org> wrote:

> On Wed, Jul 27, 2005 at 07:32:34PM -0700, Josh Berkus wrote:
> > > This 4-way has 8GB of memory and four Adaptec 2200s controllers attached
> > > to 80 spindles (eight 10-disk arrays).  For those familiar with the
> > > schema, here is a visual of the disk layout:
> > >     http://www.osdl.org/projects/dbt2dev/results/dev4-015/layout-6.html
> 
> Have you by-chance tried it with the logs and data just going to
> seperate RAID10s? I'm wondering if a large RAID10 would do a better job
> of spreading the load than segmenting things to specific drives.

No, haven't tried that.  That would reduce my number of spindles as I
scale up. ;)  I have the disks attached as JBODs and use LVM2 to stripe
the disks together.

Mark