Performance of single server with 5TB disk space (5 disks): how bad will it be?
I would like to build a web server which can serve photos stored on disk. Typical size of a file is 1-3MB. In order to minimize costs I was planning on buying a dual quad-core box with 12GB RAM (i will need some caching for java app) and five 1TB disks (would you recommend SAS or SASA for box like PowerEdge 2900 III). The concern I have is what would be the bottleneck if the volume on the site increases? How well will OS scale the IO operations among the disks? Will LVM be ok? What other hardware options would you recomment to keep the budget within 10k if my plan is no good?