公开(公告)号：US11073993B1

公开(公告)日：2021-07-27

申请号：US16885602

申请日：2020-05-28

Applicant: Pure Storage, Inc.

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

IPC: G06F12/06 ,  G06F13/16 ,  G06F3/06 ,  G06F12/02 ,  G06F11/10

Abstract: A method begins by a processing module determining a priority access level of an encoded data slice stored on a memory device. The method continues by determining a memory status for the memory device, wherein the memory status includes a plurality of discrete usability levels with a highest usability level representing a maximum amount of usable memory, a second usability level representing a lower usability level than the highest usability level and a lowest usability level representing an unusable level when the usable memory is below a threshold. The method continues with the processing module determining whether to migrate the encoded data slice from the memory device based on the priority access level and the memory status. The method continues with the processing module identifying another memory device. The method continues with the processing module facilitating migration of the encoded data slice to another memory device.

公开(公告)号：US10901618B1

公开(公告)日：2021-01-26

申请号：US16779871

申请日：2020-02-03

Applicant: Pure Storage, Inc.

Inventor： Asimuddin Kazi ,  Jason K. Resch

IPC: G06F3/06 ,  G06F11/07 ,  H04N21/274 ,  H04N21/232 ,  H04N21/231 ,  H04N21/218 ,  H04L29/06 ,  H04L1/16 ,  G06F21/80 ,  G06F21/62 ,  G06F21/10 ,  G06F11/10 ,  H04L29/08 ,  G06F11/26 ,  H03M13/37 ,  H04L9/08 ,  G06F21/31 ,  G06F1/3296 ,  H03M13/15

Abstract: A computing device includes an interface configured to interface and communicate with a dispersed storage network (DSN), a memory that stores operational instructions, and a processing module operably coupled to the interface and memory such that the processing module, when operable within the computing device based on the operational instructions, is configured to perform various operations. The computing device determines to facilitate migration of encoded data slices (EDSs) from a first storage unit (SU) pool to a second SU pool and identifies storage resources associated with the EDSs to be migrated. The computing device then generates a migration schedule for the EDSs based on performance information associated with storage resources and facilitates the migration of the plurality of EDSs based on the migration schedule using the storage resources based on an aggression factor and adapts the aggression factor as deemed necessary based on the performance information.

公开(公告)号：US20250158836A1

公开(公告)日：2025-05-15

申请号：US19024413

申请日：2025-01-16

Applicant: Pure Storage, Inc.

Inventor： S. Christopher Gladwin ,  Wesley Leggette ,  Andrew Baptist ,  Jason K. Resch

IPC: H04L9/32 ,  H04L9/08 ,  H04L67/1097

Abstract: Methods and apparatus for storing data and metadata in a storage network. In a method, one or more processing modules of a storage network establishes a vault as a virtual memory block that maps to memory of the storage network. The method further includes receiving data for storage in the vault, selecting a first vault parameter set regarding distributed storage of the data, and encoding at least a portion of the data in accordance with the first vault parameter set to produce a set of encoded data slices. The method further includes obtaining metadata regarding the set of encoded data slices, selecting a second vault parameter set regarding distributed storage of the metadata, and encoding the metadata in accordance with the second vault parameter set to produce metadata encoded slices. The method further includes facilitating storage of the set of encoded slices and the metadata encoded slices in the vault.

公开(公告)号：US20250156275A1

公开(公告)日：2025-05-15

申请号：US19021479

申请日：2025-01-15

Applicant: Pure Storage, Inc.

Inventor： S. Christopher Gladwin ,  Gary W. Grube ,  Jason K. Resch

IPC: G06F11/10 ,  G06F3/06 ,  G06F16/27

Abstract: A method for execution by one or more computing devices of a storage network includes determining an encoded data slice of a set of encoded data slices needs rebuilding during an encoded data slice reduction operation. The method further includes determining whether a current number of encoded data slices of the set of encoded data slices that are not in need of rebuilding is less than a reduced rebuild threshold number associated with the encoded data slice reduction operation. When the current number is less than reduced rebuild threshold number, the method further includes rebuilding the encoded data slice.

公开(公告)号：US20250147699A1

公开(公告)日：2025-05-08

申请号：US19014578

申请日：2025-01-09

Applicant: Pure Storage, Inc.

Inventor： Jason K. Resch

IPC: G06F3/06 ,  G06F11/10

Abstract: A processing system operates by: detecting an access anomaly associated with an access request from a requestor for a set of encoded data slices, the access anomaly having an unfavorable access pattern, wherein the set of encoded data slices is dispersed storage error encoded and stored in at least one storage unit of the storage network; denying the access request in response to detecting the access anomaly; generating, based on the unfavorable access pattern, an anomaly detection indicator identifying the requestor; and sending the anomaly detection indicator to other devices of the storage network.

公开(公告)号：US20250138747A1

公开(公告)日：2025-05-01

申请号：US19008046

申请日：2025-01-02

Applicant: Pure Storage, Inc.

Inventor： Jason K. Resch ,  Andrew D. Baptist ,  Niall J. McShane ,  Greg R. Dhuse ,  Thomas F. Shirley, JR. ,  Gregory Palinckx ,  Russell P. Kennedy ,  S. Christopher Gladwin ,  Robert C. McCammon ,  James Sherer

IPC: G06F3/06

Abstract: A processing system of a storage network operates by receiving a write request associated with a data object; identifying dispersed storage error encoding parameters; and determining a number of available storage units. When the number of available storage units is determined to exceed a first number, the processing system operates by: determining a first write threshold number in accordance with the dispersed storage error encoding parameters; dispersed error encoding the data object to produce a first write threshold number of encoded data slices; and writing, to available storage units, the first write threshold number of encoded data slices. When the number of available storage units is determined to not exceed the first number, the processing system operates by: determining a second write threshold number in accordance with the dispersed storage error encoding parameters associated, wherein the second write threshold number is less than the first write threshold number; dispersed error encoding the data object to produce a second write threshold number of encoded data slices; and writing, to the available storage units, the second write threshold number of encoded data slices.

公开(公告)号：US12277030B2

公开(公告)日：2025-04-15

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

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：US20250068348A1

公开(公告)日：2025-02-27

申请号：US18942201

申请日：2024-11-08

Applicant: Pure Storage, Inc.

Inventor： Jason K. Resch ,  Wesley B. Leggette ,  Sebastien Vas

IPC: G06F3/06

Abstract: Methods and apparatus for storage pool tiering in a storage network. In an embodiment, a method executed by one or more processing modules of a storage network includes maintaining a storage network access control list (ACL) registry. The ACL registry includes a storage network sub-registry and one or more vault sub-registries, and each of the sub-registries includes one or more ACLs. The method further includes receiving a storage network access request from a requesting entity, identifying a request type of the storage network access request, and identifying the one or more ACLs of a sub-registry associated with the request type. The method continues with retrieving the one or more ACLs, identifying an ACL of the one or more ACLs based on an identifier associated with the requesting entity, and comparing the storage network access request to permissions of the identified ACL to determine whether the access request is authorized.

公开(公告)号：US20250036527A1

公开(公告)日：2025-01-30

申请号：US18915761

申请日：2024-10-15

Applicant: Pure Storage, Inc.

Inventor： Scott M. Horan ,  Wesley B. Leggette ,  Jason K. Resch

IPC: G06F11/10 ,  G06F3/06 ,  G06F11/16 ,  G06F11/30 ,  G06F13/42 ,  G06F16/11 ,  G06F16/182 ,  G06F16/2457 ,  G06F21/62 ,  G06F21/64 ,  H03M13/15 ,  H03M13/29 ,  H03M13/37 ,  H04L9/08 ,  H04L67/1097 ,  H04L67/63

Abstract: A storage network operates by: receiving a encoded data slice for storage by the storage network, wherein the encoded data slice is associated with a vault; generating a encryption key corresponding to the encoded data slice associated with the vault; utilizing the encryption key to generate a encrypted data slice and that corresponds to, and is based on, the encoded data slice; storing the encrypted data slice in a storage unit of the storage network; receiving a request to retrieve the encoded data slice; retrieving the encrypted data slice corresponding to the encoded data slice from the storage unit of the storage network; generating a decryption key corresponding to the encoded data slice, wherein the decryption key is different from the encryption key; and regenerating the encoded data slice using the decryption key.

公开(公告)号：US20240427490A1

公开(公告)日：2024-12-26

申请号：US18822680

申请日：2024-09-03

Applicant: Pure Storage, Inc.

Inventor： Jason K. Resch ,  Greg R. Dhuse

IPC: G06F3/06 ,  G06F11/10

Abstract: A method includes generating a second encoded data slice of a second subset of encoded data slices of a set of encoded data slices, where the second subset of encoded data slices is not currently stored in a set of storage units of the storage network, where the set of encoded data slices include a first subset of encoded data slices that is stored in the set of storage units and includes at least a decode threshold number of encoded data slices of the set of encoded data slices, and where a first encoded data slice of the first subset requires rebuilding. The method further includes sending the second encoded data slice to the set of storage units for storage therein, where when the second encoded data slice is stored, the second encoded data slice no longer included in the second subset of encoded data slices.