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:
Sep. 16, 2014
Filed:
Apr. 24, 2012
Partho P. Das, Hyderabad, IN;
Rohit Jaini, Hyderabad, IN;
Vijay Krishna Tandra Sistla, Hyderabad, IN;
Rahul Shrikant Newaskar, Hyderaba, IN;
Partho P. Das, Hyderabad, IN;
Rohit Jaini, Hyderabad, IN;
Vijay Krishna Tandra Sistla, Hyderabad, IN;
Rahul Shrikant Newaskar, Hyderaba, IN;
Microsoft Corporation, Redmond, WA (US);
Abstract
Data consistency between a primary virtual machine and a recovery virtual machine may employ a resync engine to detect differences in data blocks stored on both virtual machines. For example, the resync engine may calculate a signature (e.g., hash value) for a primary data block and a corresponding signature for a recovery data block, and compare the signature and the corresponding signature to identify a difference between the primary data block and the recovery data block. In some instances, by identifying a difference between the primary data block and the recovery data block, a data block (e.g., primary data block or recovery data block) may be identified to be transferred from a virtual machine to another virtual machine.