A couple months ago I wrote a useful tool to help us visualize the operation of a CAStor cluster in situ. It provides a bird's eye view of the nodes and communication among them by replaying a syslog file captured during an actual execution. We plan to use this tool for a number of different things, from marketing to tech support, even design validation. As a first application, I have begun using it as the basis for a series of tutorial videos explaining the inner workings of CAStor. Here's the first installment.
Check it out!