[hestefisk]

And LPARs on System z :)

[tyingq]

Both LPARS and z/VM look more like hypervisors to me. Things like containers and chroot probably don't make much sense in the mainframe world since they already had granular facilities to limit access to networks, data sets, etc.

[queuebert]

And VMs on IBM VM/370.

[indigodaddy]

Aren’t lpars quite a lot different in nature than zones and jails though?