In your case I'd go for the 3 disk raid 0 setup.
El ago 27, 2013 11:25 p.m., "Scott Marlowe" <scott.marlowe@gmail.com> escribió:
>
> On Tue, Aug 27, 2013 at 7:18 PM, Rene Romero Benavides
> <rene.romero.b@gmail.com> wrote:
> > First of all, thank you so much for your valuable time.
> >
> > It probably does, though we have a requirement of having available at least
> > twice the expected database size, and 50% of disk space overhead sounds like
> > too much for us to take in a replicated SAN environment and a PostgreSQL
> > master/slave - streaming replication setup.
> >
> > our options regarding disks availability at the moment are:
> > a 3 disks array dedicated for PostgreSQL in any RAID configuration we'd
> > like
> > OR
> > a 10 disks array shared with 14 virtual machines running the middleware
> > layer and the application infrastructure in a RAID 5 configuration
In your case I'd go for the 3 disk raid 0 setup. Be sure to have your failover scripts tested.
Regards,
Fernando