Server Virtualization

What is the differences between virtualisation and private cloud?

Virtualization is only an important technology to realize private cloud, not the same as private cloud. Virtualization is a technology that virtualizes hardware resources to improve utilization and reduce costs. Private cloud is a kind of on-demand service, and cost saving is not its purpose.

What is the NUMA? How to scale up server with NUMA?
NUMA means Non-uniform memory access.

By dividing the core and memory into “nodes”, the host can expand the number of cores and memory access.

What is dynamic memory in virtualization?
In order to improve resource utilization, the idle virtual machine memory is temporarily allocated to the virtual machine with insufficient memory through a scheduling mechanism.

Hyper-V Smart Paging
Smart Paging allows a VM to temporarily use hard disk space to supplement shortages of non-volatile memory. Smart paging is only used during VM restarts when there is no available physical memory.

Hyper-V Smart Paging is rarely used，because dynamic memory can solve most problems.

What is the difference between a parent and child partition?
The parent partition runs the virtualization stack and has direct access to the hardware. The child partition is created by the parent partition, which can’t directly schedule resources, and is mainly used to run the applications needed by the business