Loading patent…
AssigneeInternational Business Machines Corporation
InventorsEdward Gustav Chron, Jaishankar Moothedath Menon
Estimating the term…
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.
A storage system for providing data consistency to multiple clients, comprising:
In a storage system including a facility for storing data and data modification information and a request processor for handling requests for data from clients, a method for providing data consistency comprising the steps of:
A computer-program product for use with a storage system for providing data consistency, the storage system including a facility for storing data and data modification information and a request processor for handling requests for data from clients, the computer-program product comprising:
Dependencies are inferred from the claim text.