Semi-sequential drive I/O performance

    公开(公告)号:US11436151B2

    公开(公告)日:2022-09-06

    申请号:US16115882

    申请日:2018-08-29

    Abstract: A method includes receiving a request for a cache operation at a first storage device and identifying at least a first input/output operation at a first data block at the first storage device, the first data block having a corresponding first data range. The method also includes identifying a second input/output operation at a second data block having a corresponding second data range and initiating a read operation at the first storage device that comprises the first data block and the second data block. The method further includes combining the first data block and the second data block into a first data volume and writing the first data volume to a second storage device as a third input/output operation.

    METADATA SPACE EFFICIENT SNAPSHOT OPERATION IN PAGE STORAGE

    公开(公告)号:US20200081866A1

    公开(公告)日:2020-03-12

    申请号:US16674269

    申请日:2019-11-05

    Abstract: A method includes accessing a first top level entry of a first table of the base volume, the first top level entry having at least a first bottom level entry. The method also includes receiving a first request for a metadata snapshot of the base volume, including the first bottom level entry. The method also includes generating a second top level entry of the first table, the second top level entry configured to point to the at least first bottom level entry of the first table, and the second top level entry configured to operate as a first snapshot of the first table including the at least first bottom level entry.

    SEMI-SEQUENTIAL DRIVE I/O PERFORMANCE
    4.
    发明申请

    公开(公告)号:US20200073814A1

    公开(公告)日:2020-03-05

    申请号:US16115882

    申请日:2018-08-29

    Abstract: A method includes receiving a request for a cache operation at a first storage device and identifying at least a first input/output operation at a first data block at the first storage device, the first data block having a corresponding first data range. The method also includes identifying a second input/output operation at a second data block having a corresponding second data range and initiating a read operation at the first storage device that comprises the first data block and the second data block. The method further includes combining the first data block and the second data block into a first data volume and writing the first data volume to a second storage device as a third input/output operation.

    Metadata space efficient snapshot operation in page storage

    公开(公告)号:US11221985B2

    公开(公告)日:2022-01-11

    申请号:US16674269

    申请日:2019-11-05

    Abstract: A method includes accessing a first top level entry of a first table of the base volume, the first top level entry having at least a first bottom level entry. The method also includes receiving a first request for a metadata snapshot of the base volume, including the first bottom level entry. The method also includes generating a second top level entry of the first table, the second top level entry configured to point to the at least first bottom level entry of the first table, and the second top level entry configured to operate as a first snapshot of the first table including the at least first bottom level entry.

    Storage device initiated copy back operation

    公开(公告)号:US10915448B2

    公开(公告)日:2021-02-09

    申请号:US16106389

    申请日:2018-08-21

    Abstract: Method and apparatus for managing data in a data storage system. A storage array controller device is coupled to a plurality of storage devices by an external data path, with the storage devices used for non-volatile memory (NVM) storage of user data from a host. A copy back operation is initiated by issuing a copy back transfer command that identifies a selected data set stored in a source device and a unique identifier (ID) value that identifies a destination device. A peer-to-peer connection is established over the external data path in response to the copy back transfer command so that the selected data set is transferred from the source device to the destination device while bypassing the storage array controller device. Normal data transfers can be carried out between the storage array controller and the respective source and destination devices during the copy back operation.

    Metadata space efficient snapshot operation in page storage

    公开(公告)号:US10534751B1

    公开(公告)日:2020-01-14

    申请号:US16127372

    申请日:2018-09-11

    Abstract: A method includes accessing a first top level entry of a first table of the base volume, the first top level entry having at least a first bottom level entry. The method also includes receiving a first request for a metadata snapshot of the base volume, including the first bottom level entry. The method also includes generating a second top level entry of the first table, the second top level entry configured to point to the at least first bottom level entry of the first table, and the second top level entry configured to operate as a first snapshot of the first table including the at least first bottom level entry.

    STORAGE DEVICE INITIATED COPY BACK OPERATION

    公开(公告)号:US20190065382A1

    公开(公告)日:2019-02-28

    申请号:US16106389

    申请日:2018-08-21

    Abstract: Method and apparatus for managing data in a data storage system. A storage array controller device is coupled to a plurality of storage devices by an external data path, with the storage devices used for non-volatile memory (NVM) storage of user data from a host. A copy back operation is initiated by issuing a copy back transfer command that identifies a selected data set stored in a source device and a unique identifier (ID) value that identifies a destination device. A peer-to-peer connection is established over the external data path in response to the copy back transfer command so that the selected data set is transferred from the source device to the destination device while bypassing the storage array controller device. Normal data transfers can be carried out between the storage array controller and the respective source and destination devices during the copy back operation.

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