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公开(公告)号：US20230089583A1
公开(公告)日：2023-03-23
申请号：US17990588
申请日：2022-11-18
Applicant: Pure Storage, Inc.
Inventor： John D. Davis , John Hayes , Zhangxi Tan , Hari Kannan , Nenad Miladinovic
Abstract: A method for adjustable error correction in a storage cluster is provided. The method includes determining health of a non-volatile memory of a non-volatile solid-state storage unit of each of a plurality of storage nodes in a storage cluster on a basis of per flash package, per flash die, per flash plane, per flash block, or per flash page. The determining is performed by the storage cluster. The plurality of storage nodes is housed within a chassis that couples the storage nodes as the storage cluster. The method includes adjusting erasure coding across the plurality of storage nodes based on the health of the non-volatile memory and distributing user data throughout the plurality of storage nodes through the erasure coding. The user data is accessible via the erasure coding from a remainder of the plurality of storage nodes if any of the plurality of storage nodes are unreachable.
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公开(公告)号：US11079962B2
公开(公告)日：2021-08-03
申请号：US16797443
申请日：2020-02-21
Applicant: PURE STORAGE, INC.
Inventor： John Davis , John Hayes , Brian Gold , Shantanu Gupta , Zhangxi Tan
Abstract: A non-volatile solid-state storage is provided. The non-volatile solid state storage includes a non-volatile random access memory (NVRAM) addressable by a processor external to the non-volatile solid state storage. The NVRAM is configured to store user data and metadata relating to the user data. The non-volatile solid state storage includes a flash memory addressable by the processor. The flash memory is configured to store the user data responsive to the processor directing transfer of the user data from the NVRAM to the flash memory.
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公开(公告)号：US20200296164A1
公开(公告)日：2020-09-17
申请号：US16888153
申请日：2020-05-29
Applicant: Pure Storage, Inc.
Inventor： Par Botes , John Hayes , Zhangxi Tan
IPC: H04L29/08 , H04L12/933 , G06F3/06
Abstract: A storage system is provided. The storage system includes a plurality of storage nodes, each of the plurality of storage nodes having a plurality of storage units with storage memory. The system includes a first network coupling the plurality of storage nodes and a second network coupled to at least a subset of the plurality of storage units of each of the plurality of storage nodes such that one of the plurality of storage units of a first one of the plurality of storage nodes can initiate or relay a command to one of the plurality of storage units of a second one of the plurality of storage nodes via the second network without the command passing through the first network.
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公开(公告)号：US10579474B2
公开(公告)日：2020-03-03
申请号：US15882886
申请日：2018-01-29
Applicant: PURE STORAGE, INC.
Inventor： John D. Davis , John Hayes , Hari Kannan , Nenad Miladinovic , Zhangxi Tan
Abstract: In some embodiments, a method for die-level monitoring is provided. The method includes distributing user data throughout a plurality of storage nodes through erasure coding, wherein the plurality of storage nodes are housed within a chassis that couples the storage nodes. Each of the storage nodes has a non-volatile solid-state storage with non-volatile memory and the user data is accessible via the erasure coding from a remainder of the storage nodes in event of two of the storage nodes being unreachable. The method includes producing diagnostic information that diagnoses the non-volatile memory on a basis of per package, per die, per plane, per block, or per page, the producing performed by each of the plurality of storage nodes. The method includes writing the diagnostic information to a memory in the storage cluster.
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公开(公告)号：US20190278674A1
公开(公告)日：2019-09-12
申请号：US16422758
申请日：2019-05-24
Applicant: Pure Storage, Inc.
Inventor： John D. Davis , John Hayes , Hari Kannan , Nenad Miladinovic , Zhangxi Tan
Abstract: A plurality of storage nodes within a single chassis is provided. The plurality of storage nodes is configured to communicate together as a storage cluster. The plurality of storage nodes has a non-volatile solid-state storage for user data storage. The plurality of storage nodes is configured to distribute the user data and metadata associated with the user data throughout the plurality of storage nodes, with erasure coding of the user data. The plurality of storage nodes is configured to recover from failure of two of the plurality of storage nodes by applying the erasure coding to the user data from a remainder of the plurality of storage nodes. The plurality of storage nodes is configured to detect an error and engage in an error recovery via one of a processor of one of the plurality of storage nodes, a processor of the non-volatile solid state storage, or the flash memory.
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Patent Agency Ranking
公开(公告)号：US20190179533A1
公开(公告)日：2019-06-13
申请号：US16278547
申请日：2019-02-18
Applicant: Pure Storage, Inc.
Inventor： John D. Davis , John Hayes , Hari Kannan , Nenad Miladinovic , Zhangxi Tan
Abstract: A storage cluster is provided. The storage cluster includes a plurality of storage nodes, each of the plurality of storage nodes having nonvolatile solid-state memory and a plurality of operations queues coupled to the solid-state memory. The plurality of storage nodes is configured to distribute the user data and metadata throughout the plurality of storage nodes such that the plurality of storage nodes can access the user data with a failure of two of the plurality of storage nodes. Each of the plurality of storage nodes is configured to determine whether a read of 1 or more bits in the solid-state memory via a first path is within a latency budget. The plurality of storage nodes is configured to perform a read of user data or metadata via a second path, responsive to a determination that the read of the bit via the first path is not within the latency budget.
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公开(公告)号：US10216420B1
公开(公告)日：2019-02-26
申请号：US15338052
申请日：2016-10-28
Applicant: Pure Storage, Inc.
Inventor： Hari Kannan , Nenad Miladinovic , Zhangxi Tan , Randy Zhao
Abstract: A method for communicating with memory, performed by a memory controller, is provided. The method includes sampling reads from a plurality of memory devices and storing first calibration points in first buffers, based on the sampling, with at least one first calibration point and corresponding first buffer for each of the plurality of memory devices. The method includes sampling a read from a second memory device in background while performing a read from a first memory device using the first calibration point in the first buffer corresponding to the first memory device. The method includes storing a second calibration point in a second buffer, for the second memory device, based on the sampling in the background, with the first buffer for the second memory device having the first calibration point used for ongoing reads of the second memory device.
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公开(公告)号：US10178169B2
公开(公告)日：2019-01-08
申请号：US14683083
申请日：2015-04-09
Applicant: Pure Storage, Inc.
Inventor： Par Botes , John Hayes , Zhangxi Tan
IPC: H04L29/06 , H04L29/08 , H04L12/933
Abstract: A storage system is provided. The storage system includes a plurality of storage nodes, each of the plurality of storage nodes having a plurality of storage units with storage memory. The system includes a first network coupling the plurality of storage nodes and a second network coupled to at least a subset of the plurality of storage units of each of the plurality of storage nodes such that one of the plurality of storage units of a first one of the plurality of storage nodes can initiate or relay a command to one of the plurality of storage units of a second one of the plurality of storage nodes via the second network without the command passing through the first network.
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公开(公告)号：US10114757B2
公开(公告)日：2018-10-30
申请号：US15321424
申请日：2015-07-02
Applicant: Pure Storage, Inc.
Inventor： John Hayes , Shantanu Gupta , John Davis , Brian Gold , Zhangxi Tan
Abstract: A method of applying an address space to data storage in a non-volatile solid-state storage is provided. The method includes receiving a plurality of portions of user data for storage in the non-volatile solid-state storage and assigning to each successive one of the plurality of portions of user data one of a plurality of sequential, nonrepeating addresses of an address space. The address range of the address space exceeds a maximum number of addresses expected to be applied during a lifespan of the non-volatile solid-state storage. The method includes writing each of the plurality of portions of user data to the non-volatile solid-state storage such that each of the plurality of portions of user data is identified and locatable for reading via the one of the plurality of sequential, nonrepeating addresses of the address space.
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公开(公告)号：US09880899B2
公开(公告)日：2018-01-30
申请号：US14712756
申请日：2015-05-14
Applicant: Pure Storage, Inc.
Inventor： John D. Davis , John Hayes , Zhangxi Tan , Hari Kannan , Nenad Miladinovic
CPC classification number: G06F11/1068 , G06F11/076 , G06F11/1048 , G06F12/0246 , G06F17/30194 , G06F17/302 , G06F2212/7207 , G06F2212/7208 , G06F2212/7211 , G11C16/349 , G11C29/44 , G11C29/52 , G11C2029/0409 , G11C2029/0411
Abstract: In some embodiments, a method for die-level monitoring is provided. The method includes distributing user data throughout a plurality of storage nodes through erasure coding, wherein the plurality of storage nodes are housed within a chassis that couples the storage nodes. Each of the storage nodes has a non-volatile solid-state storage with non-volatile memory and the user data is accessible via the erasure coding from a remainder of the storage nodes in event of two of the storage nodes being unreachable. The method includes producing diagnostic information that diagnoses the non-volatile memory on a basis of per package, per die, per plane, per block, or per page, the producing performed by each of the plurality of storage nodes. The method includes writing the diagnostic information to a memory in the storage cluster.
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