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    INTELLIGENT BLOCK DEALLOCATION VERIFICATION
    4.
    发明申请
    INTELLIGENT BLOCK DEALLOCATION VERIFICATION 有权

    公开(公告)号：US20210373762A1

    公开(公告)日：2021-12-02

    申请号：US17401436

    申请日：2021-08-13

    Applicant: PURE STORAGE, INC.

    Inventor： Eric D. Seppanen ,  Neil Buda Vachharajani ,  Nidhi Pankaj Doshi

    IPC: G06F3/06 ,  G06F12/02

    Abstract: A first data block on a storage device including a data structure of deallocated data blocks on the storage device and a corresponding program erase count value for each of the deallocated data blocks is identified. A determination as to whether a second data block from the data structure of deallocated data blocks remains deallocated after being added to the data structure of deallocated data blocks based on the program erase count value is made. The data is stored at the second data block upon determining that the second data block remains deallocated after being added to the data structure of deallocated data blocks.

    Maintaining data associated with a storage device
    5.
    发明授权
    Maintaining data associated with a storage device 有权

    公开(公告)号：US11080254B2

    公开(公告)日：2021-08-03

    申请号：US15868604

    申请日：2018-01-11

    Applicant: PURE STORAGE, INC.

    Inventor： Gordon James Coleman ,  Eric D. Seppanen ,  Wei Tang

    IPC: G06F16/22 ,  G06F9/48 ,  G06F12/02 ,  G06F3/06 ,  G06F16/21 ,  G06F16/25 ,  G06F9/4401 ,  G06F21/57

    Abstract: Maintaining data associate with a storage device is described. A method may include receiving, by an application executed by a storage array controller of a host server of a solid-state storage array comprising a plurality of solid-state storage devices, an indication of a change in state of a solid-state storage device of the plurality of solid-state storage devices. In response to receiving the indication, the method may also include retrieving a plurality of tables stored at a volatile memory of the solid-state storage device, the plurality of tables comprising information associated with characteristics of a plurality of data blocks of the solid-state storage device. The method may also include identifying one or more rules associated with the plurality of tables and creating, by the storage array controller, a new plurality of tables based on the one or more rules.

    Dynamic Access in Flash System
    6.
    发明申请
    Dynamic Access in Flash System 审中-公开

    公开(公告)号：US20200050361A1

    公开(公告)日：2020-02-13

    申请号：US16655792

    申请日：2019-10-17

    Applicant: PURE STORAGE, INC.

    Inventor： Nidhi Pankaj Doshi ,  Eric D. Seppanen ,  Neil Buda Vachharajani

    IPC: G06F3/06 ,  G06F12/02

    Abstract: A storage controller coupled to a storage array comprising one or more storage devices receive a request to write data to one of the storage devices. The storage controller determines a first data block on the storage device comprising a list of deallocated data blocks on the storage device, the list comprising a block number of each deallocated data block and an access operation count value at which each deallocated data block was deallocated. The storage controller identifies a second data block from the list of deallocated data blocks on the storage device based on a corresponding access operation count value from the list and writes the data to the second data block.

    Dynamic access in flash system
    9.
    发明授权
    Dynamic access in flash system 有权

    公开(公告)号：US11119657B2

    公开(公告)日：2021-09-14

    申请号：US16655792

    申请日：2019-10-17

    Applicant: PURE STORAGE, INC.

    Inventor： Nidhi Pankaj Doshi ,  Eric D. Seppanen ,  Neil Buda Vachharajani

    IPC: G06F12/00 ,  G06F3/06 ,  G06F12/02

    Abstract: A storage controller coupled to a storage array comprising one or more storage devices receive a request to write data to one of the storage devices. The storage controller determines a first data block on the storage device comprising a list of deallocated data blocks on the storage device, the list comprising a block number of each deallocated data block and an access operation count value at which each deallocated data block was deallocated. The storage controller identifies a second data block from the list of deallocated data blocks on the storage device based on a corresponding access operation count value from the list and writes the data to the second data block.

    Efficient flash management for multiple controllers
    10.
    发明授权
    Efficient flash management for multiple controllers 有权

    公开(公告)号：US10481798B2

    公开(公告)日：2019-11-19

    申请号：US15337151

    申请日：2016-10-28

    Applicant: PURE STORAGE, INC.

    Inventor： Nidhi Pankaj Doshi ,  Eric D. Seppanen ,  Neil Buda Vachharajani

    IPC: G06F12/00 ,  G06F3/06 ,  G06F12/02

    Abstract: A storage controller coupled to a storage array comprising one or more storage devices receive a request to write data to one of the storage devices. The storage controller determines a first data block on the storage device comprising a list of deallocated data blocks on the storage device, the list comprising a block number of each deallocated data block and an access operation count value at which each deallocated data block was deallocated. The storage controller identifies a second data block from the list of deallocated data blocks on the storage device based on a corresponding access operation count value from the list and writes the data to the second data block.

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