If I bought one of these boxes/OS combos as a postgresql database server, would postgresql be able to make the best use of it with a huge (e.g. 40GB) database?
Box: HP ProLiant DL585, with 4 AMD64 CPUs and 64GB of RAM. (other vendor options also exist) OS: SUSE enterprise 8 linux for AMD (links to product info at bottom) e.g. Could postgresql make use of most of this address space to map a huge database (say 40GB) all paged into RAM at once? ---- According to Suse, a process running on such a setup can individually address 0.5 terabytes of address space, and at any one point, with the hardware above, up to 64GB (minus a bit!) of this address space could be paged into physical memory at any one time. ---- According to the docs I could find, I just need to do the following: 1. set postgresql.conf->shared_buffers to a value like (40GB/8KB), 2. Check cat /proc/sys/kernel/shmmax is big enough, or successfully increase it to > 40GB >From experience that's a long way from knowing it will work. Does anyone have any experience at all with such big memory configurations? Many thanks, Andy ______ My references: Suse: www.suse.com/amd64 and www.suse.com/en/business/products/server/sles/sles8_amd64.pdf HP: http://h18004.www1.hp.com/products/servers/proliantdl585/index.html ---------------------------(end of broadcast)--------------------------- TIP 3: if posting/reading through Usenet, please send an appropriate subscribe-nomail command to [EMAIL PROTECTED] so that your message can get through to the mailing list cleanly
