I've asked for some help here a few months ago and got some really helpfull answers regarding RAID controllers and server configuration. Up until recently I've been running PostgreSQL on a two year old Dual Xeon 3.06Ghz machine with a single channel RAID controller (previously Adaptec 2200S, but now changed to LSI MegaRAID). The 2U unit is from a generic vendor using what I believe is a SuperMicro motherboard. In the last week after upgrading the RAID controller, the machine has had disk failure and some other issues. I would like to build a very reliable dedicated postgreSQL server that has the ultimate possible performance and reliabily for around $20,000. The data set size is only currently about 4GB, but is increasing by approximately 50MB daily. The server also requires about 500 connections and I have been monitoring about 100-200 queries per second at the moment. I am planning to run FreeBSD 6.1 if possible, but I am open to any other suggestions if it improves performance. I am considering a setup such as this: - At least dual cpu (possibly with 2 cores each) - 4GB of RAM - 2 disk RAID 1 array for root disk - 4 disk RAID 1+0 array for PGDATA - 2 disk RAID 1 array for pg_xlog Does anyone know a vendor that might be able provide such setup? Any critique in this design? I'm thinking having a 2 channel RAID controller to seperate the PGDATA, root and pg_xlog. Sincerely, Kenji
