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:
Apr. 30, 2013
Filed:
Dec. 11, 2009
Thomas J. Miller, Yarrow Point, WA (US);
Jonathan M. Cargille, Seattle, WA (US);
William R. Tipton, Seattle, WA (US);
Surendra Verma, Bellevue, WA (US);
Thomas J. Miller, Yarrow Point, WA (US);
Jonathan M. Cargille, Seattle, WA (US);
William R. Tipton, Seattle, WA (US);
Surendra Verma, Bellevue, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
Aspects of the subject matter described herein relate to maintaining consistency in a storage system. In aspects, one or more objects may be updated in the context of a transaction. In conjunction with updating the objects, logical copies of the objects may be obtained and modified. A request to write the updated logical copies is sent to a storage controller. The logical copies do not overwrite the original copies. In conjunction with sending the request, a data structure is provided for the storage controller to store on the disk. The data structure indicates the one or more objects that were supposed to be written to disk and may include verification data to indicate the content that was supposed to be written to disk. During recovery, this data structure may be used to determine whether all of the object(s) were correctly written to disk.