On Wed, Feb 23, 2005 at 11:39:27AM -0500, John Allgood wrote: > Hello All > > I am setting up a hardware clustering solution. My hardware is Dual > Opteron 550 with 8GB ram. My external storage is a Kingston Fibre > channel Infostation. With 14 15000'k 36GB drives. The OS we are running > is Redhat ES 3.0. Clustering using Redhat Cluster Suite. Postgres > Version is Postgres 7.4.7. We will be setting up about 9 databases which > range in size from 100MB to 2.5GB on the config. The postgres > application is mostly read intensive. What would be the best way to > setup the hardrives on this server. Currently I have it partioned with 2 > seperate raid 5 with 1 failover per raid. I have two database clusters > configured with a seperate postmaster running for each. Running two > postmasters seems like a pain but that is the only way I knew to > seperate the load. I am mostly concerned about disk IO and performance. > Is my current setup a good way to accomplish the best performance or > would it be better to use all the drives in one huge raid five with a > couple of failovers. I have looked around in the archives and found some > info but I would like to here about some of the configs other people are > running and how they have them setup.
http://www.powerpostgresql.com/PerfList/ Consider a separate array for pg_xlog. With tablespaces in 8.0, you can isolate much of the IO in a single cluster. -Mike Adler ---------------------------(end of broadcast)--------------------------- TIP 1: subscribe and unsubscribe commands go to [EMAIL PROTECTED]
