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    System and device for data recovery for ephemeral storage
    11.
    发明授权
    System and device for data recovery for ephemeral storage 有权

    公开(公告)号：US12242349B2

    公开(公告)日：2025-03-04

    申请号：US18134438

    申请日：2023-04-13

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Yang Seok Ki ,  Sungwook Ryu

    IPC: G06F11/00 ,  G06F3/06 ,  G06F11/07 ,  G06F11/10 ,  G06F11/14 ,  G06F11/20 ,  G06F11/30 ,  G06F11/32 ,  G06F11/34 ,  G06F12/0882 ,  G06F12/1009

    Abstract: In various embodiments, a method for page cache management is described. The method can include: identifying a storage device fault associated with a fault-resilient storage device; determining that a first region associated with the fault-resilient storage device comprises an inaccessible space and that a second region associated with the fault-resilient storage device comprises an accessible space; identifying a read command at the second storage device for the data and determine, based on the read command, first data requested by a read operation from a local memory of the second storage device; determining, based on the read command, second data requested by the read operation from the second region; retrieving the second data from the second region; and scheduling a transmission of the second data from the fault-resilient storage device to the second storage device.

    Systems, methods, and devices for data recovery using parity space as recovery space
    12.
    发明授权
    Systems, methods, and devices for data recovery using parity space as recovery space 有权

    公开(公告)号：US12222810B2

    公开(公告)日：2025-02-11

    申请号：US17227262

    申请日：2021-04-09

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Yang Seok Ki ,  Sungwook Ryu

    IPC: G06F11/10 ,  G06F3/06 ,  G06F11/16 ,  G06F11/30

    Abstract: A method may include operating a first storage device and a second storage device as a redundant array configured to use parity information to recover information from a faulty storage device, operating the first storage device in a fault resilient mode with at least partial read capability based on a fault condition of the first storage device, and rebuilding information from the first storage device in a parity space of the second storage device. Rebuilding the information from the first storage device in the parity space of the second storage device may include copying the information from the first storage device to the parity space of the second storage device. The method may further include copying the rebuilt information from the parity space of the second storage device to a replacement storage device.

    Persistent memory with cache coherent interconnect interface
    14.
    发明授权
    Persistent memory with cache coherent interconnect interface 有权

    公开(公告)号：US11966590B2

    公开(公告)日：2024-04-23

    申请号：US17858058

    申请日：2022-07-05

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Yang Seok Ki ,  Chanik Park ,  Sungwook Ryu

    IPC: G06F3/06 ,  G06F12/0804 ,  G06F12/0811

    CPC classification number: G06F3/0619 ,  G06F3/0647 ,  G06F3/0685 ,  G06F12/0804 ,  G06F12/0811

    Abstract: A persistent memory device is disclosed. The persistent memory device may include a cache coherent interconnect interface. The persistent memory device may include a volatile storage and a non-volatile storage. The volatile storage may include at least a first area and a second area. A backup power source may be configured to provide backup power selectively to the second area of the volatile storage. A controller may control the volatile storage and the non-volatile storage. The persistent memory device may use the backup power source while transferring a data from the second area of the volatile storage to the non-volatile storage based at least in part on a loss of a primary power for the persistent memory device.

    Systems, methods, and devices for attachable compute resources for storage devices
    15.
    发明授权
    Systems, methods, and devices for attachable compute resources for storage devices 有权

    公开(公告)号：US11880583B2

    公开(公告)日：2024-01-23

    申请号：US17202335

    申请日：2021-03-15

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Ramdas P. Kachare ,  Sungwook Ryu ,  Yang Seok Ki ,  Sanghun Jun ,  Oscar P. Pinto ,  Karnik Shah

    IPC: G06F3/06

    CPC classification number: G06F3/0655 ,  G06F3/0625 ,  G06F3/0679

    Abstract: A storage device may include a storage medium, a storage device controller coupled to the storage medium, a host interface coupled to the storage device controller, and an attachable module interface configured to connect an attachable compute module to the storage device controller. The attachable module interface may include a data interface, a side-band interface, and/or a power interface. The attachable module interface may include a connector configured to connect the attachable compute module to the storage device controller. The storage device may include an enclosure having an opening configured to enable the attachable compute module to be connected to the attachable module interface through the opening. The storage device controller may be configured to utilize one or more resources of the attachable compute module. The storage device controller may be configured to communicate with the attachable compute module through one or more command extensions of a storage protocol.

    Systems, methods, and devices for data storage with specified data transfer rate
    16.
    发明授权
    Systems, methods, and devices for data storage with specified data transfer rate 有权

    公开(公告)号：US11726659B2

    公开(公告)日：2023-08-15

    申请号：US17308991

    申请日：2021-05-05

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Ramdas P. Kachare ,  Sungwook Ryu

    IPC: G06F3/06

    CPC classification number: G06F3/0613 ,  G06F3/0604 ,  G06F3/067 ,  G06F3/0653 ,  G06F3/0659

    Abstract: A method may include receiving, at a storage device, a command for a data transfer between the storage device and a host, determining a specified data rate for the data transfer, and performing the data transfer between the storage device and the host based on the command, wherein the storage device may control the data transfer based on the specified data rate. The data transfer may include a peak portion and an idle portion. The method may further include controlling, at the storage device, a peak portion and an idle portion of the data transfer based on the specified data rate. The method may further include controlling, at the storage device, the data transfer based on a peak burst size. The specified data rate may be received from the host and/or determined by the storage device by monitoring one or more parameters of a data transfer.

    SYSTEMS, METHODS, AND DEVICES FOR DATA RECOVERY USING PARITY SPACE AS RECOVERY SPACE
    18.
    发明申请
    SYSTEMS, METHODS, AND DEVICES FOR DATA RECOVERY USING PARITY SPACE AS RECOVERY SPACE 有权

    公开(公告)号：US20210349781A1

    公开(公告)日：2021-11-11

    申请号：US17227262

    申请日：2021-04-09

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Yang Seok Ki ,  Sungwook Ryu

    IPC: G06F11/10 ,  G06F11/16 ,  G06F11/30 ,  G06F3/06

    Abstract: A method may include operating a first storage device and a second storage device as a redundant array configured to use parity information to recover information from a faulty storage device, operating the first storage device in a fault resilient mode with at least partial read capability based on a fault condition of the first storage device, and rebuilding information from the first storage device in a parity space of the second storage device. Rebuilding the information from the first storage device in the parity space of the second storage device may include copying the information from the first storage device to the parity space of the second storage device. The method may further include copying the rebuilt information from the parity space of the second storage device to a replacement storage device.

    Systems, methods, and devices for fault resilient storage
    19.
    发明授权
    Systems, methods, and devices for fault resilient storage 有权

    公开(公告)号：US12259786B2

    公开(公告)日：2025-03-25

    申请号：US17232144

    申请日：2021-04-15

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Yang Seok Ki ,  Sungwook Ryu ,  Alain Tran

    IPC: G06F11/00 ,  G06F3/06 ,  G06F11/10 ,  G06F11/14 ,  G06F11/16

    Abstract: A method of operating a storage device may include determining a fault condition of the storage device, selecting a fault resilient mode based on the fault condition of the storage device, and operating the storage device in the selected fault resilient mode. The selected fault resilient mode may include one of a power cycle mode, a reformat mode, a reduced capacity read-only mode, a reduced capacity mode, a reduced performance mode, a read-only mode, a partial read-only mode, a temporary read-only mode, a temporary partial read-only mode, or a vulnerable mode. The storage device may be configured to perform a namespace capacity management command received from the host. The namespace capacity management command may include a resize subcommand and/or a zero-size namespace subcommand. The storage device may report the selected fault resilient mode to a host.

    Systems, methods, and devices for data recovery using parity space as recovery space
    20.
    发明授权
    Systems, methods, and devices for data recovery using parity space as recovery space 有权

    公开(公告)号：US12259785B2

    公开(公告)日：2025-03-25

    申请号：US17227262

    申请日：2021-04-09

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Yang Seok Ki ,  Sungwook Ryu

    IPC: G06F11/10 ,  G06F3/06 ,  G06F11/16 ,  G06F11/30

    Abstract: A method may include operating a first storage device and a second storage device as a redundant array configured to use parity information to recover information from a faulty storage device, operating the first storage device in a fault resilient mode with at least partial read capability based on a fault condition of the first storage device, and rebuilding information from the first storage device in a parity space of the second storage device. Rebuilding the information from the first storage device in the parity space of the second storage device may include copying the information from the first storage device to the parity space of the second storage device. The method may further include copying the rebuilt information from the parity space of the second storage device to a replacement storage device.

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