The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 02, 2011
Filed:
Sep. 05, 2006
Dana D. Groff, Redmond, WA (US);
James E. Johnson, Bellevue, WA (US);
Jonathan M. Cargille, Seattle, WA (US);
Norbert P. Kusters, Redmond, WA (US);
Ran Kalach, Bellevue, WA (US);
Surendra Verma, Bellevue, WA (US);
Dana D. Groff, Redmond, WA (US);
James E. Johnson, Bellevue, WA (US);
Jonathan M. Cargille, Seattle, WA (US);
Norbert P. Kusters, Redmond, WA (US);
Ran Kalach, Bellevue, WA (US);
Surendra Verma, Bellevue, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
Aspects of the subject matter described herein relate to transactions. In aspects, a consistency requester such as a shadow copy service requests to have a consistent view of a set of resources. In response, transactions that are in a problematic state are allowed to exit the problematic state while new and existing transactions that are not in the problematic state are allowed to perform any work except work that takes them into the problematic state. After no transactions are in the problematic state, a consistent view of the set of resources is available. This view may be used by the consistency requester as desired. Afterwards, the consistency requester may indicate that a consistent view is no longer needed. Transactions are then allowed to enter the problematic state. Transactions may also be allowed to enter the problematic state if a timeout elapses.