High availability method and system for improving the utility of physical servers in cloud computing resource pool

摘要

A high availability method and system for improving utilization of physical servers in a cloud computing resource pool, wherein the method includes: when the physical servers in the cloud computing resource pool fail, judging whether idle memory on the normally-running physical servers can support running of virtual machines on all the failed physical servers; when the idle memory on the normally-running physical servers can support the running of the virtual machines on all the failed physical servers, restarting the virtual machines on all the failed physical servers on the normally-running physical servers. The embodiments of the present document improve the utilization of memory resource of physical servers.