It is always to allocate your files on the server and once in a week you can move the temporary files to the trash or delete the unwanted old code pushed from the server. It is your to divide the users among different servers,you have to push the users into another server when the load in the server gets high.
What do you mean by reducing traffic on a server? Traffic can't be reduce unless you want to kick out your users. Load balancing is a technique that helps distribute traffic to multiple servers. You can use hardware and software combined tools to implement load balancing. From Wikipedia: In computing, load balancing distributes workloads across multiple computing resources, such as computers, a computer cluster, network links, central processing units or disk drives. Load balancing aims to optimize resource use, maximize throughput, minimize response time, and avoid overload of any single resource. Using multiple components with load balancing instead of a single component may increase reliability and availability through redundancy. Load balancing usually involves dedicated software or hardware, such as a multilayer switch or a Domain Name System server process.
Thank you Mahesh Chand Sir and Kalyankumar Ravichandran Sir.