Patent ID: 9377963
Filing Date: 2016-06-28
CPC Classification: G06F

Claim Text:
1. A method for migrating a virtual disk from first physical storage to second physical storage while an application execution environment depending on the virtual disk for execution is maintained in its physical location, the method comprising: creating a first child virtual disk to which writes are redirected from a first parent virtual disk, the first parent virtual disk being on the first physical storage, wherein an application execution environment is dependent on the first parent virtual disk for execution; copying the first parent virtual disk to the second physical storage as a second parent virtual disk while the application execution environment is running; re-parenting the first virtual child disk to the second parent virtual disk; and consolidating the first child virtual disk and the second parent virtual disk on the second physical storage; wherein the first parent virtual disk is migrated from the first physical storage to the second physical storage without migrating the application execution environment.