1. A system comprising: a virtual machine manager; a blade server management module; at least one blade server; and a virtual machine manager comprising an abnormal event receiving module for receiving information about a hardware problem of a blade server directly from said blade server management module and a virtual machine management module for sending a processing command to a virtual machine hypervisor on said blade server having said hardware problem, wherein said processing command is determined in accordance with said information about said hardware problem and strategies for handling predefined hardware problems, and wherein said virtual machine management module comprises a strategy checker for determining any issue with respect to said strategies for handling said predefined hardware problems.