Solid state disk read-write method
A technology of solid-state hard disk, read and write method, applied in the direction of memory address/allocation/relocation, input/output to record carrier, etc., can solve the problems of many address mapping table system resources, large search algorithm complexity, poor operation parallelism, etc. , to achieve the effect of less system storage resources, lower erasing frequency and longer lifespan
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[0036] The method of the present invention will be further described below in combination with specific embodiments and with reference to the accompanying drawings.
[0037] Such as Figure 1~4 The read / write method of the solid-state hard disk includes four types of operations that can be executed in parallel: reading data from the solid-state hard disk, writing data to the solid-state hard disk, writing cached data into flash memory, and erasing invalid blocks of the solid-state hard disk.
[0038] This specific embodiment is based on the cache, and a block-level address mapping table with a cache is pre-established. The block-level address mapping table is a conversion table from a logical block address to a physical block address. The block-level address mapping table with a cache is the logic of the pages stored in the cache. A conversion table from a page address to a physical page address; and divide the storage space of the solid state disk into a data block area, an i...
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