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公开(公告)号：US20220083420A1
公开(公告)日：2022-03-17
申请号：US17535152
申请日：2021-11-24
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：US11204830B2
公开(公告)日：2021-12-21
申请号：US16800669
申请日：2020-02-25
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：US20210357133A1
公开(公告)日：2021-11-18
申请号：US17388982
申请日：2021-07-29
Applicant: PURE STORAGE, INC.
Inventor： John Martin Hayes , Hari Kannan , Nenad Miladinovic
Abstract: A method for erasure detection in a storage cluster is provided. The method includes establishing a connection, via a network, of a storage unit to one of a plurality of storage nodes of a storage cluster and determining, for at least one page of a storage memory of the storage unit, that the at least one page is erased. The storage unit is one of a plurality of storage units configured to store user data in memory of the storage units in accordance with direction from the plurality of storage nodes. The method includes communicating from the storage unit to the one of the plurality of storage nodes that the at least one page is erased.
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公开(公告)号：US20210216209A1
公开(公告)日：2021-07-15
申请号：US17213697
申请日：2021-03-26
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：US20210182190A1
公开(公告)日：2021-06-17
申请号：US17159986
申请日：2021-01-27
Applicant: Pure Storage, Inc.
Inventor： Ying Gao , Boris Feigin , Hari Kannan
IPC: G06F12/02
Abstract: A scheduling system for a memory controller is provided. The system includes operation queues and a scheduler. The scheduler receives operation requests, prioritizes each operation request according to one or more policies, and inserts each operation request into an operation queue.
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Patent Agency Ranking
公开(公告)号：US10983859B2
公开(公告)日：2021-04-20
申请号：US14454537
申请日：2014-08-07
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：US10915813B2
公开(公告)日：2021-02-09
申请号：US16449241
申请日：2019-06-21
Applicant: Pure Storage, Inc.
Inventor： Fabio Margaglia , Emily Watkins , Hari Kannan , Cary A. Sandvig
Abstract: An apparatus for artificial intelligence acceleration is provided. The apparatus includes a storage and compute system having a distributed, redundant key value store for metadata. The storage and compute system having distributed compute resources configurable to access, through a plurality of authorities, data in the solid-state memory, run inference with a deep learning model, generate vectors for the data and store the vectors in the key value store.
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公开(公告)号：US20200379652A1
公开(公告)日：2020-12-03
申请号：US16999381
申请日：2020-08-21
Applicant: Pure Storage, Inc.
Inventor： Hari Kannan , Robert Lee
Abstract: A method for non-disruptive upgrade of a storage system is provided. The method includes disabling, by an interlock, access by one or more processors of the storage system to the first memory, responsive to a request. The method includes persisting configuration information in the first memory to the solid-state memory, with the access to the first memory disabled by the interlock, wherein the persisting, the first memory and the solid-state memory are supported by an energy reserve. The method includes enabling, by the interlock, access by the one or more processors to the first memory, responsive to completing the persisting, and writing, by the one or more processors of the storage system, to the first memory, to perform the upgrade with further configuration information, with the access enabled by the interlock and wherein at least the persisting is accomplished without power cycling.
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公开(公告)号：US10324812B2
公开(公告)日：2019-06-18
申请号：US15351303
申请日：2016-11-14
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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公开(公告)号：US20180165154A1
公开(公告)日：2018-06-14
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
CPC classification number: G06F11/1068 , G06F11/076 , G06F11/1048 , G06F12/0246 , G06F16/182 , G06F16/1827 , 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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