OVM - Server Pool

A non-clustered server pool does not support HA for virtual machines deployed on its servers. 


If a server fails, the virtual machines on this server have to be restarted manually on a server 
1. in this server pool, 
2. or possibly on a server in another server pool, if that server pool also has access to the repositories needed for deploying the virtual machines on the failed server.


Live Migration is supported between servers in a non-clustered pool if the servers have the same CPU affinity (same family and type of CPU). 



A server pool consists of at least one, but usually multiple Oracle VM Servers. All Oracle VM Servers in a
server pool should have CPUs in the same CPU family and of the same type. If they are not in the same
CPU family and type, some operations such as live migration may fail. Though the CPUs should be in
the same CPU family, they may have differing configurations, such as different number of cores. Other
hardware components on the host computer may also differ, such as the amount of RAM, the number and
size of disk drives, and so on.
Although the host computers may have differing configurations, Oracle recommends that all Oracle VM
Servers in a server pool are identical. Oracle VM Manager contains rules for processor compatibility
groups. If live migration is attempted between incompatible processors, an error message is displayed.