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Low latency and persistent data storage

United States Patent

8,656,130
February 18, 2014
View the Complete Patent at the US Patent & Trademark Office
Persistent data storage is provided by a method that includes receiving a low latency store command that includes write data. The write data is written to a first memory device that is implemented by a nonvolatile solid-state memory technology characterized by a first access speed. It is acknowledged that the write data has been successfully written to the first memory device. The write data is written to a second memory device that is implemented by a volatile memory technology. At least a portion of the data in the first memory device is written to a third memory device when a predetermined amount of data has been accumulated in the first memory device. The third memory device is implemented by a nonvolatile solid-state memory technology characterized by a second access speed that is slower than the first access speed.
Fitch; Blake G. (Croton-on-Hudson, NY), Franceschini; Michele M. (White Plains, NY), Jagmohan; Ashish (Irvington, NY), Takken; Todd E. (Brewster, NY)
International Business Machines Corporation (Armonk, NY)
13/ 336,287
20130166821
December 23, 2011
This invention was made with Government support under Contract Number B554331 awarded by the Department of Energy. The U.S. Government has certain rights to this invention.