公开(公告)号：EP2702493B1

公开(公告)日：2018-08-22

申请号：EP11864454.1

申请日：2011-10-10

申请人： Microsoft Technology Licensing, LLC

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

IPC分类号： G06F3/06 ,  G06F3/12 ,  G06F9/455

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.