CONTROLLER FLASH MEMORY APPARATUS METHOD FOR IDENTIFYING DATA BLOCK STABILITY AND METHOD FOR STORING DATA IN FLASH MEMORY APPARATUS

摘要

An embodiment of the present invention provides a controller including a processor, a cache, and a communication interface, wherein the controller reads information about the first data block from the cache so that the flash memory device stores data blocks having the same stability level together And a mapping between the length of a period in which the first data block is stored in the flash memory device and the length of the reference count of the data block and the period in which the data block is stored in the flash memory device and the stability level Determine a stability level of the first data block according to the relationship; and the stability level is used to indicate the stability of the data block; And to transmit the logical address of the first data block and the stability level of the first data block to the flash memory device via the communication interface.