On Thu, Mar 13, 2008 at 5:14 PM, Leigh Dyer <leigh@xxxxxxxxxxxxxx> wrote: > Glyn Astill wrote: > > Bonie++ benchmarks below. > > > > I believe the the Perc 5/i Raid 10 mode is actually a span of mirrors, rather than the expected stripe of mirrors we should expect from 1+0, and that this is the reason for the shitty performance. > > > > Could you build three RAID-1 mirrors on the device, and then stripe that > using software RAID-0? That can be a useful option. You'd have to test it on your setup, but RAID-0 is dead simple, so letting the kernel handle the RAID-0 part is pretty low cost. Especially if you've got lots of CPU power, like many of today's servers. -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
