Providing automated quality-of-service (‘QoS’) for virtual machine migration across a shared data center network

摘要

Providing automated quality-of-service (‘QoS’) for virtual machine migration across a shared data center network, including: identifying, by a virtual machine migration module, a virtual machine to migrate from a source host to a destination host; determining a migration cost for migrating the virtual machine from the source host to the destination host; identifying based on the migration cost a least congested network path between the source host and the destination host and a bandwidth to be used for migration such that migration completes within a user specified time limit; and initiating transmission of the virtual machine from the source host to the destination host over the least congested network path, including reserving bandwidth across the shared data center network for transferring the virtual machine from the source host to the destination host in dependence upon the migration cost.

主权项

1. A method of providing automated quality-of-service (‘QoS’) for virtual machine migration across a shared data center network, the method comprising:
identifying, by a virtual machine migration module, a virtual machine to migrate from a source host to a destination host; determining, by the virtual machine migration module, a migration cost for migrating the virtual machine from the source host to the destination host including:
determining an amount of data to be transmitted from the source host to the destination host when migrating the virtual machine from the source host to the destination host; anddetermining a maximum amount of time available for migrating the virtual machine from the source host to the destination host; identifying based on the migration cost, by the virtual machine migration module, a least congested network path between the source host and the destination host and a bandwidth to be used for migration; receiving a user specified time limit for completing the migration over the identified least congested network path; and initiating, by the virtual machine migration module, transmission of the virtual machine from the source host to the destination host over the least congested network path, including reserving bandwidth across the shared data center network for transferring the virtual machine from the source host to the destination host in dependence upon the migration costs,
wherein reserving bandwidth includes setting a transmission rate to a value, andwherein the amount of data to be transmitted from the source host to the destination host is to be transmitted over the least congested network path at the transmission rate within the maximum amount of time available for migrating the virtual machine from the source host to the destination host.