Abstract: A cloud data center includes a resource management system and a computing resource pool. The resource management system monitors a running parameter of a flexible instance running in the computing resource pool, and indicates the computing resource pool to adjust a size of the flexible instance. The computing resource pool runs the flexible instance, collects the running parameter of the flexible instance, and adjusts, based on the indication, the size of the flexible instance.

Abstract: According to a compute instance scheduling method, usage of a physical resource included in each computer, and usage of a physical resource occupied by a compute instance running on each computer in a compute instance provisioning system are collected. Then, a compute instance in the compute instance provisioning system is scheduled based on the usage of the physical resource in each computer and the usage of the physical resource occupied by the compute instance running on each computer.

Abstract: According to a compute instance scheduling method, usage of a physical resource included in each computer, and usage of a physical resource occupied by a compute instance running on each computer in a compute instance provisioning system are collected. Then, a compute instance in the compute instance provisioning system is scheduled based on the usage of the physical resource in each computer and the usage of the physical resource occupied by the compute instance running on each computer.

Abstract: Embodiments of the present invention provides a resource provisioning method, including: receiving, by a first data center, a resource request message, where the first data center is any data center that receives the resource request message in the system; obtaining, by the first data center and by analyzing the resource request message, at least two destination data centers that provision resources; creating a virtual network; creating a virtual machine for the at least two destination data centers; and adding the virtual machine to the virtual network. By implementing the method, the resource utilization of a data center is improved, administration, maintenance, and operation are simplified, and an occurrence probability of network connection fault or traffic congestion is reduced.

Abstract: Embodiments of the present invention provides a resource provisioning method, including: receiving, by a first data center, a resource request message, where the first data center is any data center that receives the resource request message in the system; obtaining, by the first data center and by analyzing the resource request message, at least two destination data centers that provision resources; creating a virtual network; creating a virtual machine for the at least two destination data centers; and adding the virtual machine to the virtual network. By implementing the method, the resource utilization of a data center is improved, administration, maintenance, and operation are simplified, and an occurrence probability of network connection fault or traffic congestion is reduced.