Migrating virtual machines across sites

摘要

In one embodiment, a method for managing data swapping in a migration of virtual memory data in a virtual machine, wherein the data swapping is from a first storage device at a first site to a second storage device at a second site, and the first and second storage devices have a metro mirror relationship includes sending a fail report in response to a failure to access the first storage device according to a path table, in response to the fail report, modifying a mirror direction between the first and second storage devices, sending a path modifying notification for modifying settings of a first path to the second storage device, and activating the path to the second storage device by modifying the path table according to the path modifying notification, so as to make the second storage device accessible.

主权项

1. A method for managing data swapping in a migration of virtual memory data in a virtual machine, wherein the data swapping is from a first storage device at a first site to a second storage device at a second site, and the first and second storage devices have a metro mirror relationship, the method comprising:
sending a fail report in response to a failure to access the first storage device according to a path table; in response to the fail report, modifying a mirror direction between the first and second storage devices; sending a path modifying notification for modifying settings of a first path to the second storage device; and activating the path to the second storage device by modifying the path table according to the path modifying notification, so as to make the second storage device accessible.