Thanks, the information is really useful. At Georgia Tech, we might expect a class size of more than 300, based on the above the number, we need at least 40GB of memory.
Since we have some limitations on VM memory size, I am wondering if any site has experience to running ondemand service in a load banlance mode, e.g. multiple VMs behind the main URL.
I understand this is common practice in the Industry world, however in the case, user wants to come back to resum the work, how load banlancer hanlders the migration of PUN, or we need to develop an internal mapping host->PUN to make sure that user is assigned to the correct server when he/she logins back?
Any suggestion is welcome!