Are there drawbacks to configuring a 4-slot server with only 2 slots populated?
My customer would like to use 2 Dell PowerEdge R910 servers for his dedicated QlikView Servers (1 for Publisher and 1 for Server). In one of the servers, he is configuring for only half the CPU slots (2 instead of all 4). Has anyone seen this configuration and do you know if it causes any performance issues? Would it be better to recommend the Dell PowerEdge R720 server for the 2 slot configuration?
There are some great QT documents from the Scalability Center that will speak to this - From my experience the best server performance is to have all slots in the chassis loaded with processors, rather than filling only two slots of a four slot machine. Optionally the customer could get the two slot Dell with two processors, but that would potentially limit the capacity of that server. The other way would be to load all four slots with less capable processors i.e. two core vs four core, then as the requirements grow they would just swap out the smaller processor for larger quad core or hex core processors. I'll have a look for the documents and post those in a minute.
Thanks Jim, Jonas and Hampus for your answers. This was very helpful. Ultimately, the customer will decide what they want, but they now have the information they need to make a better decision. I will try to update this post based on their actual experience once we are up and running.