On Jun 17, 2005, at 3:34 PM, Yves Vindevogel wrote:

We are looking to build a new machine for a big PG database.

We were wondering if a machine with 5 scsi-disks would perform better if we use a hardware raid 5 controller or if we would go for the clustering in PG.

If we cluster in PG, do we have redundancy on the data like in a RAID 5 ?

I'd recommend 4 disks in a hardware RAID10 plus a hot spare, or use the 5th disk as boot + OS if you're feeling lucky.

Vivek Khera, Ph.D.

+1-301-869-4449 x806

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