06952758 is referenced by 202 patents and cites 13 patents.

A data storage system and method for providing consistent data to multiple clients based on data modification information as existing data is updated and new data is written to the system. The information indicates the modification status of each data block and identifies which data blocks have been modified during a certain time interval. The clients may query and update the modification information by submitting requests through a request processor. The data modification information includes an Altered Block Map that indicates block modification status and a Toggle Block Map that identifies which blocks have been modified. The system further includes a Modification Counter a Pending Reset Counter for improved recognition and handling of the modified data.

Title
Method and system for providing consistent data modification information to clients in a storage system
Application Number
10/210489
Publication Number
6952758 (B2)
Application Date
July 31, 2002
Publication Date
October 4, 2005
Inventor
Jaishankar Moothedath Menon
San Jose
CA, US
Edward Gustav Chron
Santa Clara
CA, US
Agent
Mark C McCabe
Khanh Q Tran
Assignee
International Business Machines Corporation
NY, US
IPC
G06F 012/00
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