Yes it keeps a "history". Just look at the linked page for the very first image here. There's even a yearly graph on there. It's meant to monitor SNMP devices, but you can make it graph really anything you want using simple scripts (gotta understand basic scripting though - which I would hope you do if you're monitoring servers). Also, check out RRDtool for somewhat nicer graphing. There's a bit of work involved to make it all work, but it's totally worth it. You can find tutorials, guides, FAQs and all kinds of resources using good ole google. This looks really great. I can't believe I have not looked into this sooner. Thanks a lot. This will be a huge help to me.