公开(公告)号：EP2684135A2

公开(公告)日：2014-01-15

申请号：EP12756990.3

申请日：2012-03-04

申请人： Microsoft Corporation

发明人： STARKS, John A. ,  GREEN, Dustin L. ,  HARRIS, Todd William ,  JOHN, Mathew ,  RAJARAM, Senthil ,  MEHRA, Karan ,  CHRISTIANSEN, Neal R. ,  DAI, Chung Lang

IPC分类号： G06F12/08 ,  G06F9/06

CPC分类号： G06F3/0631 ,  G06F3/0604 ,  G06F3/061 ,  G06F3/0626 ,  G06F3/0643 ,  G06F3/0644 ,  G06F3/0664 ,  G06F3/0673 ,  G06F3/0689 ,  G06F9/45558 ,  G06F17/30233 ,  G06F2009/45579

摘要： This document describes techniques for storing virtual disk payload data. In an exemplary configuration, each virtual disk extent can be associated with state information that indicates whether the virtual disk extent is described by a virtual disk file. Under certain conditions the space used to describe a virtual disk extent can be reclaimed and state information can be used to determine how read and/or write operations directed to the virtual disk extent are handled. In addition to the foregoing, other techniques are described in the claims, figures, and detailed description of this document.

公开(公告)号：EP2702493A1

公开(公告)日：2014-03-05

申请号：EP11864454.1

申请日：2011-10-10

申请人： Microsoft Corporation

发明人： STARKS, John A. ,  GREEN, Dustin L. ,  HARRIS, Todd William ,  JOHN, Mathew ,  RAJARAM, Senthil ,  TRAUT, Eric

IPC分类号： G06F12/08 ,  G06F12/00 ,  G06F9/06

CPC分类号： G06F9/45558 ,  G06F3/061 ,  G06F3/0619 ,  G06F3/0643 ,  G06F3/0644 ,  G06F3/0659 ,  G06F3/0664 ,  G06F3/0673 ,  G06F3/0683 ,  G06F3/0689 ,  G06F3/121 ,  G06F9/455 ,  G06F9/45545 ,  G06F2009/45583

摘要： In an exemplary embodiment, a virtual disk file can be assigned an identifier and a virtual disk files that is dependent on the virtual disk file can include a copy of the identifier. In the instance that the virtual disk file is opened and data is modified that causes the contents of a virtual disk extent to change the identifier can be changed. If the virtual disk file and the dependent virtual disk file are used to instantiate a virtual disk the difference between identifiers can be detected, which is indicative of the fact that the virtual disk may be corrupted. Other techniques are described in the detailed description, claims, and figures that form a part of this document.

公开(公告)号：EP2577450A2

公开(公告)日：2013-04-10

申请号：EP11790209.8

申请日：2011-05-25

申请人： Microsoft Corporation

发明人： REUTHER, Lars ,  GREEN, Dustin L. ,  STARKS, John A.

IPC分类号： G06F9/06 ,  G06F9/44

CPC分类号： G06F9/45558 ,  G06F2009/4557 ,  G06F2009/45583

摘要： Techniques for migrating a virtual machine from a source computer system to a target computer system are disclosed. In an exemplary embodiment, a group of pages can be mapped writable in response to determining that the guest operating system attempted to change a specific page. In the same, or other embodiments, pages can be compressed prior to sending such that throughput of a communication channel is maximized. In the same, or other embodiments, storage IO jobs can be canceled on a source computer system and reissued by a target computer system.