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公开(公告)号：US20220261167A1
公开(公告)日：2022-08-18
申请号：US17661804
申请日：2022-05-03
Applicant: Pure Storage, Inc.
Inventor： Jason K. Resch , Wesley B. Leggette
IPC: G06F3/06
Abstract: Methods and apparatus for storage pool tiering in a storage network. In an embodiment, a method includes receiving data for storage and storing the data in a first pool of storage units, the first pool of storage units associated with a first storage tier having a first access latency performance level. The method further includes initializing a frequency of access indicator corresponding to the stored data and determining, based at least in part on the frequency of access indicator, to move the stored data to a second pool of storage units associated with a second storage tier having a second access latency performance level, wherein the second access latency performance level corresponds to higher average access latency than the first access latency performance level. In response to determining to move the stored data to the second pool of storage units, the method further includes retrieving the data from the first pool of storage units and facilitating storage of the data in the second pool of storage units.
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公开(公告)号：US11416339B1
公开(公告)日：2022-08-16
申请号：US16988135
申请日：2020-08-07
Applicant: Pure Storage, Inc.
Inventor： Sebastien Vas , Zachary J. Mark , Jason K. Resch
IPC: G06F16/13 , G06F11/10 , H04L9/40 , H04L9/32 , G06F11/16 , H04L67/06 , G06F11/07 , G06F11/14 , H04W12/30 , H04W12/041 , H04W12/0431 , H04L67/1097 , G06F21/62 , G06F21/31 , H04W12/10
Abstract: A system includes a plurality of storage units, where one or more storage vaults is associated with the plurality of storage units and each storage vault of the one or more storage vaults represents a software-constructed grouping of storage units of the plurality of storage units. The software-constructed grouping of storage units stores encoded data slices. A data segment is encoded using an information dispersal algorithm to produce the encoded data slices. The system further includes a grid access manager that generates a data structure pertaining to the software-constructed grouping of storage units. A storage unit of the software-constructed grouping of storage units receives, from a client computer of the system, a request regarding the data segment, obtains, from the data structure, information regarding the request, determines whether the request is valid based on the information regarding the request, and when the request is valid, executes the request.
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公开(公告)号：US11416149B1
公开(公告)日：2022-08-16
申请号：US16944923
申请日：2020-07-31
Applicant: Pure Storage, Inc.
Inventor： Jason K. Resch , S. Christopher Gladwin , Kumar Abhijeet , Greg R. Dhuse
Abstract: A method includes determining, by a computing device of a plurality of computing devices of a storage network, a data processing plan for processing an access request. The method further includes identifying two or more processing units of a plurality of processing units of the storage network based on the data processing plan and availability information, and determining processing capabilities of each of the two or more processing units. The method further includes selecting a processing unit of the two or more processing units to process the access request based on a favorable comparison of the processing capabilities of the processing unit and the data processing plan. The method further includes selecting one or more processing options of the processing unit to process the access request according to the data processing plan, and sending the access request and selection of the one or more processing options to the processing unit.
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公开(公告)号：US20220171573A1
公开(公告)日：2022-06-02
申请号：US17651379
申请日：2022-02-16
Applicant: Pure Storage, Inc.
Inventor： Jason K. Resch , Wesley B. Leggette , Manish Motwani
Abstract: A method for execution by a computing device includes changing a decentralized agreement protocol (DAP) of a storage network to a new DAP, where storage units of the storage network store encoded data slices. The method further includes performing, based on the changing, a DAP redistribution operation that is associated with transfer of affected ones of the encoded data slices from at least one storage unit to at least one other storage unit. The method further includes maintaining, based on the changing, at least one source name address map that includes a listing of source names in accordance with storage network addresses for the at least one storage unit. The method further includes updating the at least one source name address map based on performance of the transfer of the affected ones and storing the updated at least one source name address map in a memory of the storage network.
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公开(公告)号：US11307930B1
公开(公告)日：2022-04-19
申请号：US17066873
申请日：2020-10-09
Applicant: Pure Storage, Inc.
Inventor： Thomas F. Shirley, Jr. , Greg R. Dhuse , Jason K. Resch
Abstract: A distributed storage network method begins by determining an encoded data slice to rebuild, determining a storage set of distributed storage units associated with the encoded data slice to rebuild, determining an historical performance level of each distributed storage unit of the storage set of distributed storage units, determining an estimated performance level of each distributed storage unit of the storage set of distributed storage units, selecting at least a decode threshold number of distributed storage units of the storage set of distributed storage units to produce selected distributed storage units, determining an encoded data slice partial aggregation scheme for the selected distributed storage units, sending encoded data slice partial request messages to the selected distributed storage units, and receiving encoded data slice partial response messages and extracting encoded data slice partials from the encoded data slice partial response messages to rebuild or verify the encoded data slice.
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Patent Agency Ranking
公开(公告)号：US20220116215A1
公开(公告)日：2022-04-14
申请号：US17645972
申请日：2021-12-24
Applicant: Pure Storage, Inc.
Inventor： Wesley B. Leggette , Jason K. Resch
Abstract: A method for execution by one or more modules of one or more processors of a storage network includes receiving a data object for storage, segmenting the data object into a plurality of data segments and determining a level of security and a level of performance for the plurality of data segments. The method continues by determining whether one or more data segments of the plurality of data segments is to be transformed using an all-or-nothing transformation and in response to a determination to transform one or more data segments of the plurality of data segments, transforming a data segment of the plurality of data segments to produce a transformed data segment. The method continues by dispersed error encoding the transformed data segment to produce a set of encoded data slices and transmitting the set of encoded data slices to a set of storage units of the storage network.
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公开(公告)号：US20220114053A1
公开(公告)日：2022-04-14
申请号：US17645563
申请日：2021-12-22
Applicant: Pure Storage, Inc.
Inventor： Greg R. Dhuse , Vance T. Thornton , Jason K. Resch , Ilya Volvovski , Dustin M. Hendrickson , John Quigley
IPC: G06F11/10 , G06F16/13 , H04L9/32 , G06F11/16 , H04L67/06 , H04W12/30 , H04W12/041 , H04W12/0431 , G06F11/07 , G06F11/14
Abstract: A processor in a storage network operates by: receiving an access request for a data segment, wherein the data segment is encoded utilizing an error correcting information dispersal algorithm as a set of encoded data slices that are stored in a plurality of storage units of the storage network and wherein each encoded data slice of the set of encoded data slices includes a corresponding checksum of a plurality of checksums; retrieving, from the storage network, a subset of encoded data slices that includes a threshold number of encoded data slices of the set of encoded data slices; determining, based on ones of the plurality of checksums corresponding to the subset of encoded data slices, when the subset of encoded data slices includes at least one corrupted encoded data slice; retrieving from at least one of the plurality of storage units an addition number of encoded data slices required to generate a reconstructed data segment based on the subset of encoded data slices; generating the reconstructed data segment in accordance with the error correcting information dispersal algorithm, using the additional number of encoded data slices and at least some of the subset of encoded data slices; providing the reconstructed data segment in response to the access request; forming a reconstructed set of encoded data slices utilizing the error correcting information dispersal algorithm on the reconstructed data segment; and replacing the at least one corrupted encoded data slice with at least one reconstructed encoded data slice of the reconstructed set of encoded data slices.
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公开(公告)号：US20220091939A1
公开(公告)日：2022-03-24
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
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.
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公开(公告)号：US20210286675A1
公开(公告)日：2021-09-16
申请号：US17334168
申请日：2021-05-28
Applicant: Pure Storage, Inc.
Inventor： Greg R. Dhuse , Jason K. Resch , Andrew D. Baptist , Ilya Volvovski
Abstract: A method for execution by a computing device of a storage network includes obtaining storage performance information for a set of storage units of the storage network, where data segments are dispersed storage error encoded into pluralities of sets of encoded data slices in accordance with error encoding parameters that include a pillar width number and a decode threshold number, which is a number of encoded data slices the set of encode data slices is required to reconstruct a data segment of data segments. The method further includes determining, based on the storage performance information and the error encoding parameters, a performance threshold number for a write request to store a set of encoded data slices of the pluralities of sets of encoded data slices in the set of storage units, where the performance threshold number is greater than the decode threshold number and less than the pillar width number.
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公开(公告)号：US20210286520A1
公开(公告)日：2021-09-16
申请号：US17336384
申请日：2021-06-02
Applicant: Pure Storage, Inc.
Inventor： Andrew Baptist , Jason K. Resch
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.
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