Host Subsystem 3.0
A Host is a server that has the ability to run Virtual Machines and that is connected to OpenNebula's Frontend server. OpenNebula can work with Hosts with a heterogeneous configuration, i.e. you can connect Hosts to the same OpenNebula with different hypervisors or Linux distributions as long as these requirements are fulfilled:
oneadmin
account./etc/hosts
the names of all the other Hosts and Frontend.oneadmin
account in any Host or the Frontend should be able to ssh passwordlessly to any other Host or Frontend. This is achieved either by sharing the $HOME
of oneadmin
accross all the servers with NFS or by manually copying the ~/.ssh
directory.There are two components regarding Hosts:
onehost
CLI command or through the Sunstone GUI. You can read about Host Management in more detail in the Managing Hosts guide.ssh
commands in the host, but other mechanism are possible, name the Ganglia Monitoring System. There is further information on this topic in the Monitoring Subsystem guide.