Is a
Patent attributes
Patent Applicant
0
Current Assignee
0
Patent Jurisdiction
Patent Number
Patent Inventor Names
David Cohen0
John S Harwood0
Roy E Clark0
Date of Patent
March 24, 2015
0Patent Application Number
136849530
Date Filed
November 26, 2012
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A computer implemented method, system, and program product for data consistency comprising establishing a memory-mapped file, enabling the memory-mapped file data to be paged to the non-volatile storage medium, receiving, at a consistency layer, a write IO; wherein the write IO corresponds to a space on the storage medium, issuing a read IO to the storage medium, wherein the read IO corresponds to the space on the storage medium to be overwritten by the write IO, writing the data of the read IO to a undo log and writing the write IO to the storage medium.
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