公开(公告)号：US11656941B2

公开(公告)日：2023-05-23

申请号：US17443915

申请日：2021-07-28

Applicant: Pure Storage, Inc.

Inventor： Jason K. Resch ,  Greg Dhuse ,  Andrew Baptist

IPC: G11C29/00 ,  G06F11/10 ,  G06F16/84 ,  G06F16/951 ,  G06F16/22 ,  G06F3/06 ,  H03M13/29

CPC classification number: G06F11/1076 ,  G06F3/064 ,  G06F3/067 ,  G06F3/0619 ,  G06F11/1092 ,  G06F16/2237 ,  G06F16/86 ,  G06F16/951 ,  H03M13/2906 ,  G06F2211/1028

Abstract: A method includes identifying an independent data object of a plurality of independent data objects for retrieval from dispersed storage network (DSN) memory. The method further includes determining a mapping of the plurality of independent data objects into a data matrix, wherein the mapping is in accordance with the dispersed storage error encoding function. The method further includes identifying, based on the mapping, an encoded data slice of the set of encoded data slices corresponding to the independent data object. The method further includes sending a retrieval request to a storage unit of the DSN memory regarding the encoded data slice. When the encoded data slice is received, the method further includes decoding the encoding data slice in accordance with the dispersed storage error encoding function and the mapping to reproduce the independent data object.

公开(公告)号：US11620185B2

公开(公告)日：2023-04-04

申请号：US17457794

申请日：2021-12-06

Applicant: Pure Storage, Inc.

Inventor： Greg Dhuse ,  Andrew Baptist ,  Zachary J. Mark ,  Jason K. Resch ,  Ilya Volvovski

IPC: G06F11/00 ,  G06F11/10 ,  G06F11/20 ,  H04L69/40 ,  H04L67/1097

Abstract: A distributed storage integrity system in a dispersed storage network includes a scanning agent and a control unit. The scanning agent identifies an encoded data slice that requires rebuilding, wherein the encoded data slice is one of a plurality of encoded data slices generated from a data segment using an error encoding dispersal function. The control unit retrieves at least a number T of encoded data slices needed to reconstruct the data segment based on the error encoding dispersal function. The control unit is operable to reconstruct the data segment from at least the number T of the encoded data slices and generate a rebuilt encoded data slice from the reconstructed data segment. The scanning agent is located in a storage unit and the control unit is located in the storage unit or in a storage integrity processing unit, a dispersed storage processing unit or a dispersed storage managing unit.

公开(公告)号：US10997022B1

公开(公告)日：2021-05-04

申请号：US16692472

申请日：2019-11-22

Applicant: Pure Storage, Inc.

Inventor： Andrew Baptist ,  Wesley Leggette ,  Jason K. Resch

IPC: G06F11/10 ,  G06F3/06 ,  H04L29/08 ,  H04L29/06

Abstract: A method includes receiving, by a storage unit of a set of storage units of a storage network, a write request of a set of write requests that includes a first group of slice payloads for first encoded data slices of each set of a plurality of sets of encoded data slices and a corresponding revision level. The method includes processing, by the storage unit, the write request by determining whether the corresponding revision level of each of the first encoded data slices is a next revision level and generating a write response message that includes a group of status messages for the first encoded data slices based on the determining whether the corresponding revision level of each of the first encoded data slices is the next revision level. The method continues by sending the write response message to a computing device of the storage network.

公开(公告)号：US10904320B1

公开(公告)日：2021-01-26

申请号：US16587002

申请日：2019-09-29

Applicant: Pure Storage, Inc.

Inventor： Andrew Baptist ,  Wesley Leggette ,  Jason K. Resch

IPC: H04L29/08 ,  H04L29/06 ,  H04L1/24

Abstract: A method begins by a processing module identifying one or more devices of a dispersed storage network (DSN) potentially contributing to a DSN performance issue. For a device of the identified one or more devices, the method continues where the processing module determines a potential performance issue of the device and determines a performance test based on the potential performance issue. The method continues where the processing module issues a message to the device that includes test information specific for the device to execute the performance test and receives a response message that includes a specific test result data generated based on the test information. The method continues where the processing module determines, based on the specific test result data, whether the device has the potential performance issue and is contributing to the DSN performance issue.

公开(公告)号：US12086031B2

公开(公告)日：2024-09-10

申请号：US18216015

申请日：2023-06-29

Applicant: Pure Storage, Inc.

Inventor： Andrew Baptist ,  Wesley Leggette ,  Jason K. Resch ,  Zachary J. Mark ,  Ilya Volvovski ,  Greg Dhuse

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

CPC classification number: G06F11/1076 ,  G06F3/0619 ,  G06F3/064 ,  G06F3/0659 ,  G06F3/067 ,  H04L67/1097 ,  H04L69/22 ,  H04L69/26

Abstract: A method includes receiving, by a storage unit of a storage network, a check request message from a computing device of the storage network, where the check request message includes a group of slice names of a plurality of sets of slice names associated with a plurality of sets of encoded data slices, where a plurality of data segments are dispersed storage error encoded into the plurality of sets of encoded data slices. The method further includes determining, by the storage unit, whether an error condition exists for an encoded data slice associated with the group of slice names. When no, the method includes sending, by the storage unit, a check response message to the computing device, where the check response message includes a group of slice information regarding the group of slice names. When yes, the method includes disregarding sending the check response message.

公开(公告)号：US20230205635A1

公开(公告)日：2023-06-29

申请号：US18177492

申请日：2023-03-02

Applicant: Pure Storage, Inc.

Inventor： Greg Dhuse ,  Andrew Baptist ,  Zachary J. Mark ,  Jason K. Resch ,  Ilya Volvovski

IPC: G06F11/10 ,  G06F11/20 ,  H04L69/40 ,  H04L67/1097

CPC classification number: G06F11/1092 ,  G06F11/2056 ,  G06F11/1076 ,  H04L69/40 ,  H04L67/1097 ,  G06F2211/1028 ,  G06F2211/104

Abstract: A distributed storage integrity system in a dispersed storage network includes a scanning agent and a control unit. The scanning agent identifies an encoded data slice that requires rebuilding, wherein the encoded data slice is one of a plurality of encoded data slices generated from a data segment using an error encoding dispersal function. The control unit retrieves at least a number T of encoded data slices needed to reconstruct the data segment based on the error encoding dispersal function. The control unit is operable to reconstruct the data segment from at least the number T of the encoded data slices and generate a rebuilt encoded data slice from the reconstructed data segment. The scanning agent is located in a storage unit and the control unit is located in the storage unit or in a storage integrity processing unit, a dispersed storage processing unit or a dispersed storage managing unit.

公开(公告)号：US11294568B2

公开(公告)日：2022-04-05

申请号：US17336384

申请日：2021-06-02

Applicant: Pure Storage, Inc.

Inventor： Andrew Baptist ,  Jason K. Resch

IPC: G06F12/14 ,  G06F3/06 ,  G06F11/20 ,  G06F11/10

Abstract: A request to store a file is received, an in response to that request multiple data segments are stored in a buffer memory. A first one of those data segments is selected for migration based on a life expectancy of the first data segment, and is migrated from the buffer memory to another memory. Migrating the first data segment includes generating at least one encoded data segment by encoding the first data segment, storing the first data segment to a location in the another memory, and storing addressing information indicating the location in the another memory.

公开(公告)号：US11221917B1

公开(公告)日：2022-01-11

申请号：US16535545

申请日：2019-08-08

Applicant: Pure Storage, Inc.

Inventor： Greg Dhuse ,  Andrew Baptist ,  Zachary J. Mark ,  Jason K. Resch ,  Ilya Volvovski

IPC: G06F11/00 ,  G06F11/10 ,  G06F11/20 ,  H04L29/08 ,  H04L29/14

Abstract: A distributed storage integrity system in a dispersed storage network includes a scanning agent and a control unit. The scanning agent identifies an encoded data slice that requires rebuilding, wherein the encoded data slice is one of a plurality of encoded data slices generated from a data segment using an error encoding dispersal function. The control unit retrieves at least a number T of encoded data slices needed to reconstruct the data segment based on the error encoding dispersal function. The control unit is operable to reconstruct the data segment from at least the number T of the encoded data slices and generate a rebuilt encoded data slice from the reconstructed data segment. The scanning agent is located in a storage unit and the control unit is located in the storage unit or in a storage integrity processing unit, a dispersed storage processing unit or a dispersed storage managing unit.

公开(公告)号：US20210367932A1

公开(公告)日：2021-11-25

申请号：US17380227

申请日：2021-07-20

Applicant: Pure Storage, Inc.

Inventor： Ilya Volvovski ,  S. Christopher Gladwin ,  Gary W. Grube ,  Timothy W. Markison ,  Jason K. Resch ,  Thomas Franklin Shirley, JR. ,  Greg Dhuse ,  Manish Motwani ,  Andrew Baptist ,  Wesley Leggette

IPC: H04L29/06 ,  H04L9/08 ,  G06F3/06 ,  G06F11/10

Abstract: A data segment is encrypted to produce an encrypted data segment, and a data tag associated with the data segment is generated. The encrypted data segment is encoded to generate a set of encoded data slices. At least a read-threshold number of encoded data slices are required to reconstruct the encrypted data segment. A set of write slice requests, which includes the set of encoded data slices and the data tag, is transmitted to a DSN memory. A determination is made, based on the data tag, whether a first encoded data slice of the set of encoded data slices is a duplicate of a second encoded data slice already stored within the DSN memory. If it is a duplicate, rather of storing the first encoded data slice, a reference to a location of the second encoded data slice is stored.

公开(公告)号：US20250071100A1

公开(公告)日：2025-02-27

申请号：US18942265

申请日：2024-11-08

Applicant: Pure Storage, Inc.

Inventor： Ilya Volvovski ,  S. Christopher Gladwin ,  Gary W. Grube ,  Timothy W. Markison ,  Jason K. Resch ,  Thomas Franklin Shirley, JR. ,  Greg Dhuse ,  Manish Motwani ,  Andrew Baptist ,  Wesley Leggette

IPC: H04L9/40 ,  G06F3/06 ,  G06F11/10 ,  H04L9/08

Abstract: Methods and apparatus for efficient storage of a data object in a storage network. A method for execution by one or more processing modules of a storage network begins by receiving a store data request including a data object and a data identifier, and generating a source name for the data object. The method continues by determining whether the data object is already stored in memory of the storage network. In response to determining that the data object is already stored in the memory of the storage network, the method further includes identifying location information for the data object, storing the location information using the source name, and updating metadata for the data object to indicate that an additional copy of the data object is stored in the memory of the storage network.