Electrical computers and digital processing systems: memory – Storage accessing and control – Specific memory composition
Reexamination Certificate
2004-03-29
2008-12-30
Bragdon, Reginald G (Department: 2189)
Electrical computers and digital processing systems: memory
Storage accessing and control
Specific memory composition
C711S162000
Reexamination Certificate
active
07472221
ABSTRACT:
Accessing data memory includes writing data to a first memory location and to a second memory location in response to a request to write data to a memory address that corresponds to both locations, where the first and second memory locations are mirrored, in response to a request to read data from the memory address, reading data from the first memory location or the second memory location based on load balancing, and accessing data from the second memory location in response to a request to access data at the memory address when memory hardware corresponding to the first memory location has failed. Accessing the data memory may include requesting access to a specific one of the first and second memory locations. The memory address may contain a portion that is common to both the first memory location and the second memory location. Hardware coupled to the memory may cause data written using the memory address to be automatically written to the first memory location and the second memory location.
REFERENCES:
patent: 5206939 (1993-04-01), Yanai et al.
patent: 5778394 (1998-07-01), Galtzer et al.
patent: 5845147 (1998-12-01), Vishlitzky et al.
patent: 5857208 (1999-01-01), Ofek
patent: 6052308 (2000-04-01), Pitts
patent: 7043623 (2006-05-01), Chen et al.
patent: 2004/0205384 (2004-10-01), Lai et al.
patent: 2005/0160311 (2005-07-01), Hartwell et al.
Cartmell Jerome J.
DeCrescenzo Robert
Fan Qun
Kopylovitz Haim
McClure Steven T.
Bragdon Reginald G
EMC Corporation
Muirhead and Saturnelli LLC
Vo Thanh D
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