>>>>> "GS" == Greg Stark <[EMAIL PROTECTED]> writes:
GS> "scott.marlowe" <[EMAIL PROTECTED]> writes: GS> But you have to actually test your setup in practice to see if it GS> hurts. A big data warehousing system will be faster under RAID5 GS> than under RAID1+0 because of the extra disks in the GS> stripeset. The more disks in the stripeset the more bandwidth you GS> get. Anyone have ideas on 14 spindles? I just ordered a disk subsystem with 14 high speed (U320 15kRPM) SCSI disks to hook up with a dell PERC3/DC controller (only 128MB cache, though). My plan was to do RAID10, but I think I'll play with RAID5 again and see which gives me the best performance. Unfortunatly, it is difficult to recreate the highly fragmented tables I have now (vacuum full takes over 14 hours on one of the tables) so I'm not sure how to best compare them. -- =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Vivek Khera, Ph.D. Khera Communications, Inc. Internet: [EMAIL PROTECTED] Rockville, MD +1-240-453-8497 AIM: vivekkhera Y!: vivek_khera http://www.khera.org/~vivek/ ---------------------------(end of broadcast)--------------------------- TIP 5: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faqs/FAQ.html
