Originally Posted by bavondrake
I wish there is a way to get a global zone to a new machine.
The reason for that is because all non-global zones sit on top of global zone and share the same kernel with it.
That depends on what you mean by "similar machines". If the machines are close enough, you might just move the disks (physically or logically) from one to another and you have migrated all your zones, including the global one. Of course, there might be some things to fix / adapt for this to succeed.
Alternatively, flash archives are a way to clone a global zone to other machines.