Is upgrading possible? / Cluster Hosting Setup
I am planning on buying a droplet @ DigitalOcean. I will start with the cheapest server, can I always upgrade when needed? Without any downtime?
Also, does anyone know how to set up Cluster Hosting? I have the resources and hardware, so I would like to make a Cluster Hosting setup (Load Balancing). Can anyone send a link or so, in which this is explained?