[tor-relays] Tools for managing multiple relays

Hi, I am currently running three small relays on two different services/ISPs. I have two somewhat unrelated questions: * given costant resource (i.e. euro/month) I can afford to run relays is it in general better to run one bigger relay or, say, two smaller ones. * are there any tools to manage multiple tor node? For example, if I want to check if there are security updates I have to login separately in each system and launch them manually. Is this the way I should do this or there are ways to monitor the status of all my nodes and maintaing them as a whole. Thanks in advance. Cristian