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AssigneeInternational Business Machines Corporation
InventorsVittorio Castelli, Peter A. Franaszek, Philip Heidelberger, John T. Robinson
Estimating the term…
A computing system includes a storage server having a memory organization that includes a compressed memory device for storing sectors, each sector having a sector data portion and associated header and trailers, either attached by the hosts or by components of the computing system. The compressed memory device comprises a memory directory and a plurality of fixed-size blocks. The system implements a methodology for detaching headers and trailers from sectors before storing the sectors in the memory, and storing the headers and trailers in the memory disk cache, separate from the sector data portion; and, reattaching headers and trailers to sector data portions when the sectors are sent from the memory to a host or to a mass storage device. The header and trailer data are managed through the same memory directory used to manage the compressed main memory. The process of detaching headers and trailers from sectors for separate storage results in increased efficacy of data compression, thus yielding better compression ratios, and decreased memory traffic generated by host reads, host writes, cache stages and cache destages.
In a computer memory system capable of storing data in compressed and uncompressed form, and in which units of data held in said system comprise sectors with each sector comprising header, sector data, and trailer portions for storage in a compressed main memory, a method for storing said sectors including the steps of:
In a computer system including a main memory storage device comprising fixed-size data blocks for storing pages of memory each divisible as a plurality of memory lines comprising one or more sectors, each sector comprising a sector data portion having a possible association of header and trailer data, a memory storage system comprising:
A computer system including a main memory storage comprising fixed-size data blocks for storing pages of memory each divisible as a plurality of memory lines comprising one or more sectors, a sector comprising a sector data portion and having a possible association of header and trailer data, wherein said memory system comprises:
In a computer memory system capable of storing said data in both compressed and uncompressed form in a compressed main memory, and including fixed-size data blocks for storing pages of memory each divisible as a plurality of memory lines comprising sectors, each sector comprising a sector data portion and having a possible association of header and trailer data, a method for servicing data read and write requests initiated by a host system comprising:
Dependencies are inferred from the claim text.