Method and system for virtual machine migration
First Claim
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1. A method for migrating a service Virtual Machine (VM), comprising an operating system and applications running on a hypervisor, comprising a VM managed element and dependent elements of the VM managed element, from a source host to a target host, the method comprising:
- migrating the service VM, using at least one hardware processor, comprising;
(a) migrating the service VM during an execution of the service VM under control of a mobile autonomic element having a sensor interface and an effector interface, the mobile autonomic element being an object, which is separate from the service VM;
wherein the step (a) further comprises;
queuing events to be processed at the source host, and sending information regarding a state of the events from the source host to the target host;
sending information regarding a state of the VM managed element and the dependent elements, and components of the VM managed element and the dependent elements, which have changed during the queuing, from the source host to the target host; and
processing the information at the target host;
(b) migrating the mobile autonomic element separately from and concurrently with the migrating of the service VM; and
(c) resuming execution of the service VM on the target host under control of the mobile autonomic element.
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Abstract
Virtual machine (VM) technology allows multiple operating systems each deploying multiple applications to run on a single host. This invention presents an effective method and system for virtual machine migration from a source host to a target host. The method and system concern the migration of both the service VM and the element managing it. State of the migrating VM is preserved so that it can resume its execution on the target host.
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Citations
18 Claims
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1. A method for migrating a service Virtual Machine (VM), comprising an operating system and applications running on a hypervisor, comprising a VM managed element and dependent elements of the VM managed element, from a source host to a target host, the method comprising:
migrating the service VM, using at least one hardware processor, comprising; (a) migrating the service VM during an execution of the service VM under control of a mobile autonomic element having a sensor interface and an effector interface, the mobile autonomic element being an object, which is separate from the service VM; wherein the step (a) further comprises; queuing events to be processed at the source host, and sending information regarding a state of the events from the source host to the target host; sending information regarding a state of the VM managed element and the dependent elements, and components of the VM managed element and the dependent elements, which have changed during the queuing, from the source host to the target host; and processing the information at the target host; (b) migrating the mobile autonomic element separately from and concurrently with the migrating of the service VM; and (c) resuming execution of the service VM on the target host under control of the mobile autonomic element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system for migrating a service Virtual Machine (VM), comprising an operating system and applications running on a hypervisor, comprising a VM managed element and dependent elements of the VM managed element, from a source host to a target host, the system comprising:
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a processor; a memory device having computer readable instructions stored thereon for execution by the processor, causing the processor to; (a) migrate the service VM during an execution of the service VM under control of a mobile autonomic element having a sensor interface and an effector interface, the mobile autonomic element being an object, which is separate from the service VM; wherein the computer readable instructions further cause the processor to; queue events to be processed at the source host, and send information regarding a state of the events from the source host to the target host; send information regarding a state of the VM managed element and the dependent elements, and components of the VM managed element and the dependent elements, which have changed during queuing, from the source host to the target host; and process the information at the target host; (b) migrate the mobile autonomic element separately from and concurrently with migrating the service VM; and (c) resume execution of the service VM on the target host under control of the mobile autonomic element. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A method for migrating a service Virtual Machine (VM), comprising an operating system and applications running on a hypervisor, comprising a VM managed element and dependent elements of the VM managed element, from a source host to a target host, the method comprising:
migrating the service VM using at least one hardware processor, comprising; (a) migrating the service VM during an execution of the service VM under control of a managing element managing the service VM, the management element being an object, which is separate from the service VM, wherein the step (a) further comprises; queuing events to be processed at the source host, and sending information regarding a state of the events from the source host to the target host; sending information regarding a state of the VM managed element and the dependent elements, and components of the VM managed element and the dependent elements, which have changed during the queuing, from the source host to the target host; and processing the information at the target host; (b) migrating the managing element separately from and concurrently with the migrating of the service VM; and (c) resuming execution of the service VM on the target host under control of the managing element, comprising; deserializing the state of the VM managed element and the dependent elements, and extracting dependencies for the dependent elements at the target host; and deserializing the queued events and creating queues of events at the target host.
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18. A system for migrating a service Virtual Machine (VM), comprising an operating system and applications running on a hypervisor, comprising a VM managed element and dependent elements of the VM managed element, from a source host to a target host, the system comprising:
a non-transitory computer readable storage medium having computer readable instructions stored thereon for execution by a processor, causing the processor to; (a) migrate the service VM during an execution of the service VM under control of a managing element managing the service VM, the management element being an object, which is separate from the service VM; the computer readable instructions further causing the processor to; queue events to be processed at the source host, and send information regarding a state of the events from the source host to the target host; send information regarding a state of the VM managed element and the dependent elements, and components of the VM managed element and the dependent elements, which have changed during the queuing, from the source host to the target host; and process the information at the target host; (b) migrate the managing element separately from and concurrently with migration of the service VM; and (c) resume execution of the service VM on the target host under control of the managing element, comprising; deserializing the state of the VM managed element and the dependent elements, and extracting dependencies for the dependent elements at the target host; and deserializing the queued events and creating queues of events at the target host.
Specification