专利内容由知识产权出版社提供
专利名称：METHODS AND APPARATUS FOR
CONTROLLING FLASH TRANSLATION LAYERRECYCLE FROM HOST
发明人：Saugata Das Purkayastha申请号：US15900673申请日：20180220
公开号：US20190258422A1公开日：20190822
专利附图：
摘要：Aspects of the disclosure provide for control of a flash translation layer (FTL) ina non-volatile memory (NVM). Disclosed methods and apparatus provide for receiving a
message in the FTL, which is transmitted from a host device, and includes desired recycleratio information that is determined by the host where the ratio is a number of hostwrites to a number of recycle writes to be performed by the FTL. Based on the recycleratio information, the FTL determines a target recycle ratio and performs recycling ofmemory blocks in the NVM based on the determined target recycle ratio. In this manner,the host device is able to exert control over the recycle ratio utilized in the FTL via atransmitted message, which allows the recycle ratio to be more adaptive to host writeconditions known to the host device, but not known in the SSD.
申请人：Western Digital Technologies, Inc.
地址：San Jose CA US
国籍：US
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