On 10/22/09 4:03 PM, "Stephen Frazier" <ste...@doc.state.ok.us> wrote:
> On VMware you can move a running virtual machine from one ESX machine to > another without the operating systems running on the virtual machine > knowing it. > There are many good ideas from zVM that have been copied by VMware. This > is an example going the other way - zVM is using a VMware idea. > Both VMware and zVM developers will tell you that they don't get ideas > from the other - but as an administrator of both systems I can see what > is happening. > Same thing different names - a minidisk on zVM is a vmdk on VMware. A > vSwitch on VMware is ... > Now zVM is adding vmotion from VMware, so they call it Single System Image. It's a little older than that. In the VM/SP and HPO days, there was a VM/SSI add-on from a 3rd party company. It implemented a truly enormous number of CP mods to allow virtual machines to move between a group of physical systems with the SWITCH command. Worked extremely well, till VM/XA came along.
