Dont forget about redundant storage connections on each server. On Sun, Jul 18, 2010 at 11:58 PM, Harel Safra <harel.safra@xxxxxxxxx> wrote: > A RAC setup will need the following elements: > > · External storage device to hold database files and present the > same LUNs to the RAC servers. This can be quite costly if you don't have a > SAN/NAS in place. > > · Storage network – Fiber Channel for SAN or Ethernet for > NFS/ISCSI. > > · Public network for the servers to talk to users. > > · Redundant interconnect network – if this network fails node will > crash themselves. > > · Servers with the CPU and memory sizing you determine, public > NICs, interconnect NICs, HBAs if you're using SAN storage or storage NICs if > your using NFS/ISCSI. > > > > Your hardware vendor could supply the pricing for these elements. The > pricing varies according to your companies' bargaining power. > > > > Harel Safra > > > > *From:* oracle-l-bounce@xxxxxxxxxxxxx [mailto: > oracle-l-bounce@xxxxxxxxxxxxx] *On Behalf Of *Venkat P > *Sent:* Monday, July 19, 2010 7:16 AM > *To:* oracle-l@xxxxxxxxxxxxx > *Subject:* RAC h/w basic costs > > > > Hello All, > > We are planning to move to RAC from single node database, as a start we > want to migrate to 2 node RAC and ASM. Management asked us to present basic > starting costs involved so that it helps in the decision making process. We > already have some servers in place, we might require SAN, HBAs and hardware > for constituting interconnect(NICs/Switches etc) . I am not sure where to > start, It would be great if anyone had similar experiences and can share > accross. We have evaluated Oracle licensing costs, am only looking for the > above said h/w costs. Below are details of our environment, I can provide > more details if required. > > Database version: 11.2 > Size: 500G > OS: RHEL 4 > Servers: Dell servers with 2 Xeon Quad core CPUs. > Type: R12 ERP database > > Thanks in advance, > Venkat. > -- Andrew W. Kerber 'If at first you dont succeed, dont take up skydiving.'