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:
Jan. 17, 2017
Filed:
Jan. 12, 2015
Microsoft Technology Licensing, Llc, Redmond, WA (US);
John Starks, Seattle, WA (US);
Angshuman Bezbaruah, Redmond, WA (US);
Microsoft Technology Licensing, LLC, Redmond, WA (US);
Abstract
Tracking changes amongst unit portions (e.g., blocks or files) of a storage system. A logical time identifier is associated with each unit portion and is included within a logical time identifier structure. When writing to a particular write portion, the mechanism updates the appropriate logical time identifiers, calculates redundancy data of a group of one or more logical time identifiers associated with the unit portion(s) of the write portion. Furthermore, the write portion of the storage system is written. In addition, the corresponding redundancy data for that write portion is written to the logical time identifier structure. Later, for a given write portion, the redundancy data is verified to be consistent or inconsistent with the group of one or more logical time identifiers associated with the write portion. If the redundancy data is not consistent, then a current logical time identifier is assigned to each of the logical time identifiers.