|
|
In the screenshot album, you will find BuyVM runs nested VMs to sell VPS to customers. BuyVM customers are getting a VPS on top of a VPS on a physical host. The way it works is he uses VMWare/XenCenter on a physical host, and runs 4-5 VMs (referred to as slabs in the screenshot) and inside those slabs are OpenVZ VPS nodes.
What does he gain from this? Well, VMWare has memory deduplication and whatnot, so he is able to save plenty of memory across any node that has the same process running (such as cpanel, openvpn, you get the picture).
什么意思？求高人来解释一下 |
|
发表于 2013-5-8 22:29:11
