On Dec 11, 2012, at 5:35 PM, Niels Kristian Schjødt <nielskrist...@autouncle.com> wrote:
> > Den 11/12/2012 kl. 14.29 skrev Craig Ringer <cr...@2ndquadrant.com>: > >> On 12/11/2012 06:04 PM, Niels Kristian Schjødt wrote: >>> >>> Maybe I should mention, that I never see more than max 5Gb out of my total >>> 32Gb being in use on the server… Can I somehow utilize more of it? >> For an update-mostly workload it probably won't do you tons of good so >> long as all your indexes fit in RAM. You're clearly severely >> bottlenecked on disk I/O not RAM. >>> The SSD's I use a are 240Gb each which will grow too small within a >>> few months - so - how does moving the whole data dir onto four of >>> those in a RAID5 array sound? >> >> Not RAID 5! >> >> Use a RAID10 of four or six SSDs. >> >> -- >> Craig Ringer http://www.2ndQuadrant.com/ >> PostgreSQL Development, 24x7 Support, Training & Services >> > Hehe got it - did you have a look at the SSD's I am considering building it > of? > http://ark.intel.com/products/66250/Intel-SSD-520-Series-240GB-2_5in-SATA-6Gbs-25nm-MLC > > Are they suitable do you think? > I am not Craig, but i use them in production in raid10 array now. > > > -- > Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org) > To make changes to your subscription: > http://www.postgresql.org/mailpref/pgsql-performance -- Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
