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:
Mar. 19, 2013
Filed:
Sep. 02, 2010
Pradeep Jnana Madhavarapu, Kirkland, WA (US);
Priyank Porwal, Redmond, WA (US);
Vaibhav Kamra, Bellevue, WA (US);
Alexandru C. Chirica, Toledo, OH (US);
Cristian Diaconu, Kirkland, WA (US);
Jun Fang, Sammamish, WA (US);
Srinivasmurthy P. Acharya, Sammamish, WA (US);
Pradeep Jnana Madhavarapu, Kirkland, WA (US);
Priyank Porwal, Redmond, WA (US);
Vaibhav Kamra, Bellevue, WA (US);
Alexandru C. Chirica, Toledo, OH (US);
Cristian Diaconu, Kirkland, WA (US);
Jun Fang, Sammamish, WA (US);
Srinivasmurthy P. Acharya, Sammamish, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
The present invention extends to methods, systems, and computer program products for mirroring file data. Generally, high availability and disaster recovery ('HADRON') is achieved within a database management system by detecting which parts of a file have changed and sending the changed parts to secondaries. Adjacent or partially overlapping parts of a file can coalesce to form larger chunks of changed data. Coalescing reduces the overall number of chunks that are tracked.