On Tue, Apr 10, 2018 at 12:21 AM, Andreas Joseph Krogh <andr...@visena.com> wrote:
> På tirsdag 10. april 2018 kl. 04:36:27, skrev Craig James < > cja...@emolecules.com>: > > One of our four "big iron" (spinning disks) servers went belly up today. > (Thanks, Postgres and pgbackrest! Easy recovery.) We're planning to move to > a cloud service at the end of the year, so bad timing on this. We didn't > want to buy any more hardware, but now it looks like we have to. > > I followed the discussions about SSD drives when they were first becoming > mainstream; at that time, the Intel devices were king. Can anyone recommend > what's a good SSD configuration these days? I don't think we want to buy a > new server with spinning disks. > > We're replacing: > 8 core (Intel) > 48GB memory > 12-drive 7200 RPM 500GB > RAID1 (2 disks, OS and WAL log) > RAID10 (8 disks, postgres data dir) > 2 spares > Ubuntu 16.04 > Postgres 9.6 > > The current system peaks at about 7000 TPS from pgbench. > > > With what arguments (also initialization)? > pgbench -i -s 100 -U test pgbench -U test -c ... -t ... -c -t TPS 5 20000 5202 10 10000 7916 20 5000 7924 30 3333 7270 40 2500 5020 50 2000 6417 > > -- > Andreas Joseph Krogh > > -- --------------------------------- Craig A. James Chief Technology Officer eMolecules, Inc. ---------------------------------
