公开(公告)号：WO2011097064A3

公开(公告)日：2011-08-11

申请号：PCT/US2011/021456

申请日：2011-01-17

Applicant: MICROSOFT CORPORATION

Inventor： GREEN, Dustin L. ,  OSHINS, Jacob K. ,  REUTHER, Lars

IPC: G06F12/08 ,  G06F9/06

Abstract: Described is a technology by which a virtual hard disk is migrated from a source storage location to a target storage location without needing any shared physical storage, in which a machine may continue to use the virtual hard disk during migration. This facilitates use the virtual hard disk in conjunction with live-migrating a virtual machine. Virtual hard disk migration may occur fully before or after the virtual machine is migrated to the target host, or partially before and partially after virtual machine migration. Background copying, sending of write-through data, and/or servicing read requests may be used in the migration. Also described is throttling data writes and/or data communication to manage the migration of the virtual hard disk.

公开(公告)号：WO2011097062A3

公开(公告)日：2011-08-11

申请号：PCT/US2011/021443

申请日：2011-01-16

Applicant: MICROSOFT CORPORATION

Inventor： GREEN, Dustin L. ,  OSHINS, Jacob K. ,  NEIL, Michael L.

IPC: G06F12/08 ,  G06F9/06 ,  G06F3/06

Abstract: Described is a technology by which a virtual hard disk is able to continue servicing virtual disk I/O (reads and writes) while a meta-operation (e.g., copying, moving, deleting, merging, compressing, defragmenting, cryptographic signing, lifting, dropping, converting, or compacting virtual disk data) is performed on the virtual disk. The servicing of virtual disk I/Os may be coordinated with meta- operation performance, such as by throttling and/or prioritizing the virtual disk I/Os. Also described is performing a meta-operation by manipulating one or more de-duplication data structures.