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    Proxying a data access request in a storage network
    25.
    发明授权
    Proxying a data access request in a storage network 有权

    公开(公告)号：US11991089B2

    公开(公告)日：2024-05-21

    申请号：US17814022

    申请日：2022-07-21

    Applicant: Pure Storage, Inc.

    Inventor： Wesley B. Leggette ,  Jason K. Resch ,  Manish Motwani ,  Ilya Volvovski

    IPC: G06F15/167 ,  G06F3/06 ,  H04L47/70 ,  H04L67/1097

    CPC classification number: H04L47/70 ,  G06F3/0616 ,  G06F3/0623 ,  G06F3/0647 ,  G06F3/067 ,  G06F3/0685 ,  H04L67/1097

    Abstract: Methods and apparatus for proxying data access requests in a storage network are disclosed. In various embodiments, a computing device associated with a first storage location of the storage network performs a method that includes receiving a portion of data that is in the process of being replicated from a second storage location of the storage network. The computing device facilitates storage of the portion of data in the first storage location of the storage network. In response to receiving a read request for the portion of data during the data replication process, the computing device determines whether the portion of data is available from memory of the first storage location. In response to determining that the portion of data is available from memory of the first storage location, the computing device issues a read response that includes the portion of data.

    Recovering missing data in a storage network via locally decodable redundancy data
    29.
    发明授权
    Recovering missing data in a storage network via locally decodable redundancy data 有权

    公开(公告)号：US11625300B2

    公开(公告)日：2023-04-11

    申请号：US17933563

    申请日：2022-09-20

    Applicant: Pure Storage, Inc.

    Inventor： Ilya Volvovski ,  Bruno H. Cabral ,  Manish Motwani ,  Thomas D. Cocagne ,  Timothy W. Markison ,  Gary W. Grube ,  Wesley B. Leggette ,  Jason K. Resch ,  Michael C. Storm ,  Greg R. Dhuse ,  Yogesh R. Vedpathak ,  Ravi V. Khadiwala

    IPC: G06F11/10 ,  G06F11/07 ,  G06F3/06 ,  H04L67/62 ,  H04L47/72 ,  G06F16/00 ,  H04L67/1097 ,  H04L47/28 ,  G06F9/50

    Abstract: A processing system of a storage network operates by: sending, to at least one storage unit of the storage network, at least one read request corresponding to at least a read threshold number of a set of encoded data slices to be retrieved, wherein the set of encoded data slices correspond to a data segment, wherein the data segment is coded in accordance with dispersed error coding parameters that include a write threshold number and the read threshold number, wherein the write threshold number is a number of encoded data slices in the set of encoded data slices and wherein the read threshold number is a number of the set of slices that is required to decode the data segment; receiving, via the at least one processing circuit and from the at least one storage unit, a first subset of encoded data slices of the set of encoded data slices, wherein the first subset of encoded data slices is missing at least one missing encoded data slice that was not received from the at least one storage unit in response to the at least one read request and wherein the number of encoded data slices in the first subset of the encoded data slices is less than the read threshold number; generating, via the at least one processing circuit, at least one rebuilt encoded data slice corresponding to the at least one missing encoded data slice utilizing locally decodable redundancy data, wherein the locally decodable redundancy data generated from a second subset of the set of encoded data slices that includes the at least one missing encoded data slice; and recovering, via the at least one processing circuit, the data segment based on the at least one rebuilt encoded data slice and the first subset of encoded data slices.

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