> at 5TB data, i'd vote that the application is disk I/O bound, and the > difference in CPU speed at the level of dual opteron vs. dual-core > opteron is not gonna be noticed. > > to maximize disk, try getting a dedicated high-end disk system like > nstor or netapp file servers hooked up to fiber channel, then use a > good high-end fiber channel controller like one from LSI. > > and go with FreeBSD amd64 port. It is *way* fast, especially the > FreeBSD 6.0 disk system. I'm (also) FreeBSD-biased but I'm not shure whether the 5 TB fs will work so well if tools like fsck are needed. Gvinum could be one option but I don't have any experience in that area. regards Claus ---------------------------(end of broadcast)--------------------------- TIP 3: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faq