The Xsan and Final Cut Server monitors have been announced at Xsanity and are now available for download. These will monitor processor and memory utilization of the Xsan and Final Cut Server processes respectively. SSH tunneling will hopefully be added soon so that you can run them remotely but that’s closer to a 1.x release rather than the .x release that is available.
318 has published another article on Xsanity, for scripting various notifications and monitors for Xsan and packaged up into a nice package installer. You can find it here
http://www.xsanity.com/index.php?topic=tips.
After a long silence on Xsanity, 318 has published the first of a number of articles for the site. The article focuses on how to install and configure StorNext clients running Red Hat Enterprise Linux (RHEL) to connect to an Xsan. It is available here.