zarzax the blog

While our business has been working with Right Scale for the high demand scalability, I have moved my personal server to Slicehost – VPS Hosting. They have an interesting idea in hosting, giving you a full VPS machine with but limiting you to using a CPU scheduling scheme.

photo credit: John Griffiths

From their FAQ:

How does the CPU scheduling work?

Each Slice is assigned a fixed weight based on the memory size (256, 512 and 1024 megabytes). So a 1024 has 4x the cycles as a 256 under load. However, if there are free cycles on a machine, all Slices can consume CPU time. This creates a leveraged environment that allows smaller Slices to likely consume cycles as needed, but still protects larger Slices that require higher loads.

I have been working a lot with Right Scale service and Amazon EC2 over the last few weeks. One of the most interesting aspects of using the Right Scale platform is their server provisioning with “Server Templates” and “Right Scripts“. These give you the ability to take a plain EC2 virtual image and start it up in less than ten minutes with all your data and software setup and customized. These work as a combination of scripts that are run at machine boot, machine decommission, and during normal operations.

photo credit: Ronald Lewis