Hi Niall, The overall number of users is in the hundreds of thousands with the projected maximum peak concurrent (meaning simultaneously connected) equalling 5,000. It's basically a daily use application for processing orders and reports. On Fri, Jun 8, 2012 at 11:20 AM, Niall Litchfield < niall.litchfield@xxxxxxxxx> wrote: > What sort of application is it, and what is the definition of concurrent > users? You put an upper bound of 5000 on this figure. If this means > 'concurrently connected' and this is real OLTP then I'd use 10% of that as > an active workload or 500 active user processes. That doesn't equate to > huge hardware demands, in fact and especially if workload can be segregated > would probably make an excellent 3 node 4 proc RAC install on intel. If > 5000 concurrent users means 5000 concurrently active sessions (say 50000 > users for OLTP) then we're beyond mailing list advice IMO. Mixed mode > OLTP/DSS apps (what I call Real Applications!) are also heavily dependent > on actual usage patterns for analysis. You likely also want to read Neil > Gunther's Universal Scalability Law as well IMO > On Jun 8, 2012 5:56 PM, "Dave" <user4test@xxxxxxxxx> wrote: > >> Just wondering if anyone on the list who has worked with a concurrent peak >> user load in the thousands (1000 - 5000) would mind sharing some nuggets >> on >> the hardware they used to support such a load. The load would come from >> an >> OLTP (80/20 r/w) web application using JBOSS application pools to the >> Oracle 11gR2 Ent database. I've been doing some research looking at >> powerful systems capable of supporting 80 Intel cores per system and >> connecting that with some PCIe Flash Memory for the L2 cache (flash cache) >> as well as using shared storage into a RamSan-630 via FC in order to >> maximize the use of the CPU cores and fast I/O. This would likely be a >> RAC >> scenario with two like servers. By the way, I am aware of how relatively >> "cheap" (cough) the hardware is compared to the millions in Oracle >> licensing this will cost. Still, I suspect the entire thing will be >> cheaper overall than an Exadata x2-8 system. >> Thanks! >> >> >> -- >> //www.freelists.org/webpage/oracle-l >> >> >> -- //www.freelists.org/webpage/oracle-l