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    Recovering Missing Data in a Storage Network via Locally Decodable Redundancy Data
    2.
    发明申请
    Recovering Missing Data in a Storage Network via Locally Decodable Redundancy Data 有权

    公开(公告)号：US20230009883A1

    公开(公告)日：2023-01-12

    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 ,  G06F16/00 ,  G06F3/06 ,  G06F11/07 ,  H04L67/1097 ,  H04L47/72 ,  H04L67/62

    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.

    Adjusting efficiency of storing data in a storage network
    4.
    发明授权
    Adjusting efficiency of storing data in a storage network 有权

    公开(公告)号：US11586755B1

    公开(公告)日：2023-02-21

    申请号：US17247417

    申请日：2020-12-10

    Applicant: Pure Storage, Inc.

    Inventor： Ilya Volvovski ,  Wesley B. Leggette ,  Michael C. Storm ,  Jason K. Resch

    IPC: G06F21/62 ,  G06F11/00 ,  H04L9/40 ,  H04L67/1097 ,  G06F3/06

    Abstract: A method for execution by a computing device to adjust data storage efficiency of data in a storage network includes determining an estimated overwrite frequency for a data segment for storage in memory of the storage network. The method continues by determining a storage approach for the data segment based on the estimated overwrite frequency. The method continues by processing the data segment based on the storage approach to produce a processed data segment. The method continues by error encoding the processed data segment to produce a set of encoded data slices, where a decode threshold number of encoded data slices is needed to recover the processed data segment. The method continues by storing the set of encoded data slices in the memory of the storage network.

    Utilizing Locally Decodable Redundancy Data in a Vast Storage Network
    5.
    发明申请
    Utilizing Locally Decodable Redundancy Data in a Vast Storage Network 有权

    公开(公告)号：US20220327022A1

    公开(公告)日：2022-10-13

    申请号：US17850145

    申请日：2022-06-27

    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 ,  G06F16/00 ,  G06F3/06 ,  H04L47/72 ,  H04L67/1097 ,  H04L67/62

    Abstract: A network storage system operates by: sending, to at least one storage unit of a 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 codable 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 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 from the number of the set of slices that is required to decode the data segment and that was not received from the at least one storage unit in response to the at least one read request; generating 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 includes a plurality of local redundancy slices generated from a second subset of the set of encoded data slices that includes the at least one missing encoded data slice; and recovering the data segment based on the at least one rebuilt encoded data slice and the first subset of encoded data slices.

    Updating the configuration of storage units of a storage network
    8.
    发明授权
    Updating the configuration of storage units of a storage network 有权

    公开(公告)号：US11474729B2

    公开(公告)日：2022-10-18

    申请号：US17444106

    申请日：2021-07-30

    Applicant: Pure Storage, Inc.

    Inventor： Manish Motwani ,  Joseph M. Kaczmarek ,  Michael C. Storm ,  Ilya Volvovski ,  Greg R. Dhuse ,  Anthony J. Baldocchi ,  Jason K. Resch ,  Thomas D. Cocagne

    IPC: G06F3/06

    Abstract: A method for updating software of storage units of a set of storage units in a storage network. In an embodiment, each storage unit of the set of storage units determines a data slice storage status for data slices stored in the storage unit (e.g., by monitoring rebuilding messages relating to the data slices). A processing module of the storage network obtains the data slice storage status of the storage units of the set of storage units and determines whether to perform a software update to software of the storage units of the set of storage units. Determining whether to perform the software update includes determining, based on the data slice storage status of the storage units, whether a threshold number of storage units are associated with a favorable data slice storage status. In response to determining that a threshold number of storage units are associated with a favorable data slice storage status, the processing module indicates to perform the software update.

    Updating The Configuration Of Storage Units Of A Storage Network
    9.
    发明申请
    Updating The Configuration Of Storage Units Of A Storage Network 有权

    公开(公告)号：US20210357143A1

    公开(公告)日：2021-11-18

    申请号：US17444106

    申请日：2021-07-30

    Applicant: Pure Storage, Inc.

    Inventor： Manish Motwani ,  Joseph M. Kaczmarek ,  Michael C. Storm ,  Ilya Volvovski ,  Greg R. Dhuse ,  Anthony J. Baldocchi ,  Jason K. Resch ,  Thomas D. Cocagne

    IPC: G06F3/06

    Abstract: A method for updating software of storage units of a set of storage units in a storage network. In an embodiment, each storage unit of the set of storage units determines a data slice storage status for data slices stored in the storage unit (e.g., by monitoring rebuilding messages relating to the data slices). A processing module of the storage network obtains the data slice storage status of the storage units of the set of storage units and determines whether to perform a software update to software of the storage units of the set of storage units. Determining whether to perform the software update includes determining, based on the data slice storage status of the storage units, whether a threshold number of storage units are associated with a favorable data slice storage status. In response to determining that a threshold number of storage units are associated with a favorable data slice storage status, the processing module indicates to perform the software update.

    Recovering missing data in a storage network via locally decodable redundancy data
    10.
    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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