Cluster systems and methods for the migration of virtual machines in a shared-nothing configuration based on local data storage by data replication

摘要

The present invention relates to a cluster system (20, 30) having a plurality of server computers (12) a data network (15) and. Cluster system (20, 30) is configured to run multiple virtual machines (11), each virtual machine (11) has at least one virtual mass storage device assigned to it (13). Each virtual machine (11), a first copy of the data of at least one local mass storage device (22a) on the associated virtual mass storage device of the first server computer (12a) (13) (24), second and a server computer a second copy (25) of the data of a virtual mass storage device (13) associated to the at least one local mass storage device (22b) of (12b). The present invention further relates to a method of executing multiple virtual machines on a plurality of server computers (12) (11).