> Does anyone have recommendations for hardware and/or OS to work with around > 5TB datasets? Hardware-wise I'd say dual core opterons. One dual-core-opteron performs better than two single-core at the same speed. Tyan makes some boards that have four sockets, thereby giving you 8 cpu's (if you need that many). Sun and HP also makes nice hardware although the Tyan board is more competetive priced. OS wise I would choose the FreeBSD amd64 port but partititions larger than 2 TB needs some special care, using gpt rather than disklabel etc., tools like fsck may not be able to completely check partitions larger than 2 TB. Linux or Solaris with either LVM or Veritas FS sounds like candidates. > I have been working with datasets no bigger than around 30GB, and that (I'm > afraid to admit) has been in MSSQL. Well, our data are just below 30 GB so I can't help you there :-) regards Claus ---------------------------(end of broadcast)--------------------------- TIP 4: Have you searched our list archives? http://archives.postgresql.org