On Mon, Dec 22, 2008 at 7:40 AM, Marc Mamin <M.Mamin@xxxxxxxxxxxx> wrote: > > Hello, > > To improve performances, I would like to try moving the temp_tablespaces > locations outside of our RAID system. > Is it a good practice ? Maybe yes, maybe no. If you move it to a single slow drive, then it could well slow things down a fair bit when the system needs temp space. OTOH, if the queries that would need temp space are few and far between, and they're slowing down the rest of the system in weird ways, it might be the right thing to do. I'm afraid we don't have enough information to say if it's the right thing to do right now, but there are reasons to do it (and not). -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance