I successfully deployed an OpenStack cluster on JuJu+MaaS. I have 6 servers which have their respective RAID to avoid the loss of information if an HDD fails. The question would be how to handle the loss of a physical server. If I put in the other replacement server then MaaS would take it as a new PC and how JuJu would treat it? I would have to perform the Save and Restore process manually or I am advised on other issues.