If a server is marked semi-managed we will take care of the followings:
Load issues or sluggishness,Network related problems,Failure of server to restart,Hardware failure,Package install via package manager (yum,rpm) Basic named configuration for 1-2 domains,Troubleshooting pre existing configurations,Basic task automation,Basic firewall setup/troubleshooting. (iptables) And more ( Unmanaged but happy to help )
A semi-managed server is the best and recommended option for all users who need some extra help to manage their servers.