Migration of system images
View Patent ↗Systems, devices, and methods, including program instructions, are provided for migrating operating system images. One method embodiment includes performing a process on a first device. The operation of the process is paused as a persistent image which is then migrated to a second device.
1. A non-transitory computer readable medium having executable instructions stored thereon to cause a device to perform a method, comprising:
performing a process on a first device;
pausing operation of the process using hibernation semantics;
migrating a persistent image to a second device; and
continuing the process on the second device from a point where the operation was paused on the first device.
2. The medium of claim 1 , wherein performing the process includes performing a process associated with a stateful application.
3. The medium of claim 2 , wherein migrating the persistent image to the second device includes migrating to a second device which is not clustered to the first device.
4. The medium of claim 1 , wherein migrating the persistent image to the second device includes migrating the persistent image to a different partition within a particular system.
5. The medium of claim 1 , wherein the method includes migrating the persistent image to the second device in a different system.
6. A computing system, comprising:
a first device, wherein the first device includes access to a processor;
a memory coupled to the processor; and
program instructions storable in the memory and executable by the processor to:
pause operation of a process running on the first device using hibernation semantics; and
migrate a persistent image of the process, including a state at which the operation was paused on the first device, without shutting down the first device; and
a second device that includes access to program instructions executable to continue the process, in association with the second device, from a point where the operation was paused on the first device.
7. The system of claim 6 , wherein the second device includes a virtual machine.
8. The system of claim 6 , wherein the program instructions include instructions that execute to migrate the persistent image to a different memory partition.
9. The system of claim 6 , wherein the second device includes a device in a geographically dispersed configuration.