How would one get the information stored in rrdtool into a database that rails can present to the user? Would it be possible to combine this data with other data in the same database to handle virtual connections between the data?
-Ron
rrdtool uses its own on-disk database format (called a round-robin database) which handles expiry, the data scaling, etc. internally. It won't map well into SQL, so it's probably best to just keep the files external to the "real" database.
I have not yet found a ruby rrd binding, so I've been using a call out to rrdtool to generate my images, and putting them in the public directory so they can be linked to with the usual tricks.
--Michael
