In-line non volatile memory disk read cache and write buffer
A method and apparatus to improve the read/write performance of a hard drive is presented. A device having solid state, non-volatile (NV) memory is added in-line to the conventional hard drive and acts as a read/write cache. Data specified by the operating system is stored in the NV memory. The oper...
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Main Authors | , , , |
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Format | Patent |
Language | English |
Published |
17.11.2009
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Online Access | Get full text |
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Abstract | A method and apparatus to improve the read/write performance of a hard drive is presented. A device having solid state, non-volatile (NV) memory is added in-line to the conventional hard drive and acts as a read/write cache. Data specified by the operating system is stored in the NV memory. The operating system provides a list of data to be put in NV memory. The data includes data to be pinned in NV memory and data that is dynamic. Pinned data persists in NV memory until the operating system commands it to be flushed. Dynamic data can be flushed by the hard drive controller. Data sent by an application for storage is temporarily stored in NV memory in data blocks until the operating system commits it to the disk. |
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AbstractList | A method and apparatus to improve the read/write performance of a hard drive is presented. A device having solid state, non-volatile (NV) memory is added in-line to the conventional hard drive and acts as a read/write cache. Data specified by the operating system is stored in the NV memory. The operating system provides a list of data to be put in NV memory. The data includes data to be pinned in NV memory and data that is dynamic. Pinned data persists in NV memory until the operating system commands it to be flushed. Dynamic data can be flushed by the hard drive controller. Data sent by an application for storage is temporarily stored in NV memory in data blocks until the operating system commits it to the disk. |
Author | Ergan, Cenk Wiley, Shaun B Fortin, Michael R Nicholson, Clark D |
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References | Kroeker et al. (6073232) 20000600 Day et al. (6865642) 20050300 Auerbach et al. (2006/0080501) 20060400 Yen (6378015) 20020400 Funawatari et al. (2004/0141253) 20040700 Benhase et al. (5860088) 19990100 Fukumori et al. (2003/0217300) 20031100 DeWhitt et al. (2004/0064647) 20040400 Hicksted et al. (5748874) 19980500 Matthews et al. (6101601) 20000800 Satoh et al. (5568628) 19961000 Morton et al. (6442647) 20020800 Nicholson et al. (2004/0153694) 20040800 Watkins et al. (7209319) 20070400 Kanai et al. (7380058) 20080500 Beardsley et al. (6993629) 20060100 Suzuki et al. (2005/0135056) 20050600 Fortin et al. (2004/0003223) 20040100 Reneris (6209088) 20010300 Coulson (2002/0083264) 20020600 Feigenbaum et al. (5307497) 19940400 |
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