One thing that is key to make a web services business successful is to have the service up all the time. For almost as many years as I have run my web hosting business, I have relied on Big Sister to monitor my network performance and some specific metrics and to notify me of problems when they arise. I recently switched to the Trustix Linux Sunchild distribution, and I had problems getting Big Sister setup there. On top of Trustix, I run hosting management software called H-Shpere which has some components with which I am not as familiar as I would like.
As I worked through the installation, I ran into and solved a couple of different problems which mostly related to the constraints I mentioned above. In the rest of this post I will provide a series of instructions that a systems administrator can use as a starting point to setup Big Sister, more or less out-of-the-box, to monitor their own cluster of H-Sphere servers. Once you have finished these instructions, you will still want to learn much more about monitoring so you can adjust and refine the scenario described here to meet your own needs.
Big Sister Screen monitor home

To verify the information for this post, I did another install on a fresh Trustix "server", which was setup using the "minimal" option. If you are interested, I was able to make it run on a Pentium or Pentium 2 with 64MB of RAM. Maybe if you monitor a whole bunch of servers then you will need to get a bigger display server; I'm not there yet.
Thanks
Thanks to Thomas Aeby for writing Big Sister and also to Joerg Fritsch for managing the Big Sister documentation project which had some bits which were helpful in completing my setup and this post.
Fine Print
You should understand the steps I describe before wildly following my instructions because if some of your training wheels fall off in the process, I assume no responsibility for any slips or falls you may take. (On the other hand, if you impress your boss, you can take the credit too!)