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    PROMOTING A PREVIOUS VERSION TO ROLL BACK A DATA OBJECT
    1.
    发明申请
    PROMOTING A PREVIOUS VERSION TO ROLL BACK A DATA OBJECT 有权

    公开(公告)号：US20240427665A1

    公开(公告)日：2024-12-26

    申请号：US18823168

    申请日：2024-09-03

    Applicant: Pure Storage, Inc.

    Inventor： Andrew Baptist ,  Wesley Leggette ,  Jason K. Resch ,  Manish Motwani ,  John Quigley

    IPC: G06F11/10 ,  G06F3/06 ,  H04L67/1097 ,  H04L69/00 ,  H04L69/22

    Abstract: A method for execution by one or more computing devices of a storage network includes determining an error condition associated with storage of a current version of a data object that is stored in a set of storage units of the storage network and is stored as a previous version of the data object. The method further includes sending a rollback transaction request message to at least some storage units of the set of storage units, where the at least some storage units are associated with the error condition, and where the rollback transaction request message instructs the at least some storage units to promote the previous version to be a new current version of the data object such that the new current version of the data object is accessible in the storage network.

    Using Multicast IP Addresses in a Distributed Storage Network
    2.
    发明申请
    Using Multicast IP Addresses in a Distributed Storage Network 有权

    公开(公告)号：US20240419545A1

    公开(公告)日：2024-12-19

    申请号：US18814815

    申请日：2024-08-26

    Applicant: Pure Storage, Inc.

    Inventor： Harsha Hegde ,  Ravi V. Khadiwala ,  Manish Motwani

    IPC: G06F11/10 ,  G06F3/06 ,  G06F9/48 ,  G06F9/50 ,  G06F11/14 ,  G06F12/0866 ,  G06F12/0891 ,  G06F15/173 ,  H03M13/00 ,  H03M13/11 ,  H03M13/15 ,  H03M13/37 ,  H04L9/40 ,  H04L61/45 ,  H04L67/1097 ,  H04L101/604

    Abstract: A method for execution in a storage network begins with a storage network entity receiving a write request for a data object, where the data object is dispersed error encoded in accordance with dispersed error encoding parameters to produce a plurality of sets of encoded data slices. The method continues with the storage network entity determining whether to store a plurality of copies of the data object; and in response to a decision to store a plurality of copies of the data object, determining a plurality of vaults for storage of the data object. The method then continues by identifying a multicast IP address associated with the plurality vaults for storage of the plurality of copies. The method then continues by generating a multicast IP message to a plurality of storage units associated with each vault of the plurality of vaults, where the storage units of the plurality of storage units are configured to determine a multicast IP address from the multicast IP message. Finally, the method continues by facilitating storage of the plurality of copies of the data object in the plurality of vaults.

    Recovering Missing Data in a Storage Network via Locally Decodable Redundancy Data
    3.
    发明申请
    Recovering Missing Data in a Storage Network via Locally Decodable Redundancy Data 有权

    公开(公告)号：US20240411643A1

    公开(公告)日：2024-12-12

    申请号：US18809965

    申请日：2024-08-20

    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 ,  G06F3/06 ,  G06F9/50 ,  G06F11/07 ,  G06F16/00 ,  H04L47/28 ,  H04L47/72 ,  H04L67/1097 ,  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 data, wherein the data 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 encoded data slices that is required to decode the data; receiving, at the at least one processing circuit and from the at least one storage unit, a first subset of the set of encoded data slices, wherein at least one missing encoded data slice was not included in the first subset and wherein a number of encoded data slices in the first subset 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 corresponds to a second subset of the set of encoded data slices that includes the at least one missing encoded data slice and wherein the locally decodable redundancy data is stored locally to the processing circuit; and recovering, via the at least one processing circuit, the data based on the at least one rebuilt encoded data slice and the first subset.

    Parity in a vast storage system using alternate memory
    8.
    发明授权
    Parity in a vast storage system using alternate memory 有权

    公开(公告)号：US11662915B2

    公开(公告)日：2023-05-30

    申请号：US17356838

    申请日：2021-06-24

    Applicant: Pure Storage, Inc.

    Inventor： Gary W. Grube ,  Jason K. Resch ,  Timothy W. Markison ,  Ilya Volvovski ,  Manish Motwani

    IPC: G06F3/06 ,  G06F12/02 ,  G06F11/10

    CPC classification number: G06F3/0619 ,  G06F3/067 ,  G06F3/0647 ,  G06F3/0679 ,  G06F12/0223 ,  G06F11/1076

    Abstract: A method begins by a processing module of a storage network analyzing storage network memory for a level of usability and based on the analyzing, selecting alternative memory available for receipt of encoded data slices stored in current memory, where a data object is segmented into a plurality of data segments and a data segment of the plurality of data segments is dispersed error encoded in accordance with dispersed error encoding parameters to produce a set of encoded data slices. The method continues with the processing module determining whether to move encoded data slices from current memory to alternative memory and based on a determination to move slices, allocating alternative memory. Finally, the processing module moves at least some encoded data slices from a current memory to alternate memory and updates a memory assignment mechanism for the at least some encoded data slices.

    Parity In a Vast Storage System Using Alternate Memory
    9.
    发明申请
    Parity In a Vast Storage System Using Alternate Memory 有权

    公开(公告)号：US20210318811A1

    公开(公告)日：2021-10-14

    申请号：US17356838

    申请日：2021-06-24

    Applicant: Pure Storage, Inc.

    Inventor： Gary W. Grube ,  Jason K. Resch ,  Timothy W. Markison ,  Ilya Volvovski ,  Manish Motwani

    IPC: G06F3/06 ,  G06F12/02

    Abstract: A method begins by a processing module of a storage network analyzing storage network memory for a level of usability and based on the analyzing, selecting alternative memory available for receipt of encoded data slices stored in current memory, where a data object is segmented into a plurality of data segments and a data segment of the plurality of data segments is dispersed error encoded in accordance with dispersed error encoding parameters to produce a set of encoded data slices. The method continues with the processing module determining whether to move encoded data slices from current memory to alternative memory and based on a determination to move slices, allocating alternative memory. Finally, the processing module moves at least some encoded data slices from a current memory to alternate memory and updates a memory assignment mechanism for the at least some encoded data slices.

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