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Methods, devices and systems for variable size logical page management in a solid state drive
Methods, devices and systems for variable size logical page management in a solid state drive
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机译:用于固态驱动器中可变大小逻辑页面管理的方法,设备和系统
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摘要
A data storage device may comprise an array of flash memory devices comprising a plurality of blocks, each comprising a plurality of physical pages. A controller may be coupled to and configured to program and read data from the array responsive to host commands. The controller may be configured to store data in a plurality of logical pages (L-Pages) of different sizes, each associated with an L-Page number that is configured to enable the host to logically reference data stored in one or more of the physical pages; and maintain a logical-to-physical address translation map configured to enable the controller to determine a location, within one or more physical pages, of the data referenced by each L-Page number. The translation map may comprise a plurality of mapping entries arranged by L-Page numbers, each comprising a complete starting physical address of an L-Page within one of the physical pages.
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