Symantec Corporation

Ashish Puri

Brad Boyer

Dharmesh Shah

Bala Kumaresan

Anurag Agarwal

Nagaraj Shyam

Srikanth S Mahabalarao

Nitin Madan

Sureshbabu Basavayya

Gurbir Singh Dhaliwal

Ankur Arora

A system and method for replicating a set of files from a source computer system to a target computer system are described. The underlying extent structure of the files may be preserved. For example, if an original file on the source computer system has a particular number of extents then the copy of the file created on the target computer system may have the same number of extents, where each respective extent in the copy represents the same byte range of the file as its corresponding extent in the original file. The file systems employed on the source computer system and the target computer system may support different extent types. The extent types of the original files stored on the source computer system may be preserved in the copies of the files on the target computer system.

Efficient file replication which preserves the underlying extent structure

Techniques for improving dirty page logging are disclosed. In one particular exemplary embodiment, the techniques may be realized as a method for memory logging comprising the steps of determining for one or more pages of memory if the pages of memory are likely to be modified in a subsequent epoch, performing a first operation on the pages of memory that are likely to be modified in a subsequent epoch, and performing a second operation on the pages of memory that are not likely to be modified in a subsequent epoch, wherein the first operation and the second operation are dissimilar.

Techniques for improving dirty page logging

Growing community of inventors

Santa Clara, CA, United States of America

Ashish Puri