You can move the nas to another server but you will then need a alarm queue on the primary server removing the nas attach queue then either a post or get/attach to your new server which will need to be a hub. I would not recommend moving the nas from the primary as it can also put the alarm in a true sql db instead of the sql lite db the nas uses, but if you want a nas on another server leave the one on the primary and then use the nas syncronization between your primary hub and new server. I would think the nas whitepaper would explain this.