Method and system for vm migration in an infiniband network

A system for migrating a virtual machine (VM) from a physical source node to a physical destination node in an InfiniBand network, the system including:

• a source node including a host channel adapter (HCA) having a virtualization module;
• and
• a destination node including an HCA having a virtualization module, and
• an InfiniBand subnet manager;
• wherein for migrating the VM from the source node to the destination node, the virtualization module in the source node allocates a virtual host channel adapter (VHCA) for the VM to be migrated, suspends the VHCA and puts the VHCA into an inactive state, saves the state information of the VM, including state information, in a location-transparent manner, and transmits the state information to the destination node, and wherein the virtualization module in the destination node creates a new VM, allocates a VHCA for the VM, restores the state information transferred from the source node, including the VHCA state information, contacts the InfiniBand subnet manger for updating routing and switching information;
• resumes operation of the VM, and puts the VHCA in the destination node into an active state.