Re: [PERFORM] Multiple disks: RAID 5 or PG Cluster

[Vivek Khera]

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