公开(公告)号：US11640336B2

公开(公告)日：2023-05-02

申请号：US17380655

申请日：2021-07-20

Applicant: Seagate Technology LLC

Inventor： Ryan J. Goss ,  Jack V. Anderson ,  Jonathan M. Henze

IPC: G06F11/10 ,  G06F11/07 ,  G06F3/06

Abstract: Method and apparatus for intelligent caching, protection and transfers of data between a cache and a main memory in a data storage environment, such as but not limited to a solid-state drive (SSD). A main memory (MM) has non-volatile memory (NVM) cells configured for persistent storage of user data. A fast response cache (FRC) has NVM cells configured to provide storage of first data prior to transfer to the MM. A write cache (WC) has NVM cells configured to provide storage of second data prior to transfer to the MM. A controller directs input data to either the FRC or the WC. A first type of error correction encoding (ECC1) is applied to the first data and a different, second type of error correction encoding (ECC2) is applied to the second data. Data may be sent from the FRC to the MM either directly or through the WC.

公开(公告)号：US20220027234A1

公开(公告)日：2022-01-27

申请号：US17380655

申请日：2021-07-20

Applicant: Seagate Technology LLC

Inventor： Ryan J. Goss ,  Jack V. Anderson ,  Jonathan M. Henze

IPC: G06F11/10 ,  G06F11/07 ,  G06F3/06

Abstract: Method and apparatus for intelligent caching, protection and transfers of data between a cache and a main memory in a data storage environment, such as but not limited to a solid-state drive (SSD). A main memory (MM) has non-volatile memory (NVM) cells configured for persistent storage of user data. A fast response cache (FRC) has NVM cells configured to provide storage of first data prior to transfer to the MM. A write cache (WC) has NVM cells configured to provide storage of second data prior to transfer to the MM. A controller directs input data to either the FRC or the WC. A first type of error correction encoding (ECC1) is applied to the first data and a different, second type of error correction encoding (ECC2) is applied to the second data. Data may be sent from the FRC to the MM either directly or through the WC.