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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：US10585617B1
公开(公告)日：2020-03-10
申请号：US15875189
申请日：2018-01-19
Applicant: Pure Storage, Inc.
Inventor： John Colgrove , Ethan Miller , John Hayes , Cary Sandvig , Christopher Golden , Jianting Cao , Grigori Inozemtsev
IPC: G06F3/06
Abstract: A system and method for performing copy offload operations. When a copy offload operation from a first volume (pointing to a first medium) to a second volume (pointing to a second medium) is requested, the copy offload operation is performed without accessing the data being copied. A third medium is created, and the first medium is recorded as the underlying medium of the third medium. The first volume is re-pointed to the third medium. Also, a fourth medium is created, the second volume is re-pointed to the fourth medium, and the second medium is recorded as the underlying medium of the targeted range of the fourth medium. All other ranges of the fourth medium have the second medium as their underlying medium.
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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：US10521120B1
公开(公告)日：2019-12-31
申请号：US16142575
申请日：2018-09-26
Applicant: PURE STORAGE, INC.
Inventor： Ethan Miller , John Colgrove , John Hayes , Cary Sandvig
IPC: G06F12/00 , G06F3/06 , G06F12/02 , G06F12/1027 , G06F12/1009 , G06F12/06 , G06F12/10
Abstract: A system, method, and computer-readable storage medium for mapping block numbers within a region to physical locations within a storage system. Block numbers are mapped within a region according to a fractal-based space-filling curve. If the region is not a 2k by 2k square, then the region is broken up into one or more 2k by 2k squares. Any remaining sub-region is centered within a 2k by 2k square, the 2k by 2k square is numbered using a fractal-based space-filling curve, and then the sub-region is renumbered by assigning numbers based on the order of the original block numbers of the sub-region.
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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：US10365858B2
公开(公告)日：2019-07-30
申请号：US14073637
申请日：2013-11-06
Applicant: PURE STORAGE, INC.
Inventor： Ethan Miller , John Colgrove , John Hayes
IPC: G06F3/06 , G06F12/1009 , G06F12/1036
Abstract: An apparatus, method, and computer-readable storage medium for allowing a block-addressable storage device to provide a sparse address space to a host computer. The storage device exports an address space to a host computing device which is larger than the storage capacity of the storage device. The storage device translates received file system object addresses in the larger address space to physical locations in the smaller address space of the storage device. This allows the host computing device more flexibility in selecting addresses for file system objects which are stored on the storage device.
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公开(公告)号：US10353635B2
公开(公告)日：2019-07-16
申请号：US16050465
申请日：2018-07-31
Applicant: Pure Storage, Inc.
Inventor： John Hayes , Par Botes
Abstract: A storage cluster is provided. The storage cluster includes a plurality of storage nodes coupled together as the storage cluster. The plurality of storage nodes is configured to assign data to two or more logical arrays and the plurality of storage nodes is configured to establish data striping across the plurality of storage nodes for user data of each of the two or more logical arrays.
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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：US10284367B1
公开(公告)日：2019-05-07
申请号：US15398898
申请日：2017-01-05
Applicant: Pure Storage, Inc.
Inventor： Ethan Miller , John Colgrove , John Hayes
Abstract: A system, method, and computer-readable storage medium for protecting a set of storage devices using a secret sharing scheme. The data of each storage device is encrypted with a key, and the key is encrypted based on a shared secret and a device-specific value. Each storage device stores a share and its encrypted key, and if a number of storage devices above a threshold are available, then the shared secret can be reconstructed from the shares and used to decrypt the encrypted keys. Otherwise, the secret cannot be reconstructed if less than the threshold number of storage devices are accessible, and then data on the storage devices will be unreadable.
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公开(公告)号：US10263770B2
公开(公告)日：2019-04-16
申请号：US14073618
申请日：2013-11-06
Applicant: PURE STORAGE, INC.
Inventor： Ethan Miller , John Colgrove , John Hayes
Abstract: A system, method, and computer-readable storage medium for protecting a set of storage devices using a secret sharing scheme in combination with an external secret. An initial master secret is generated and then transformed into a final master secret using an external secret. A plurality of shares are generated from the initial master secret and distributed to the storage devices. The data of each storage device is encrypted with a device-specific key, and this key is encrypted using the final master secret. In order to read the data on a given storage device, the initial master secret reconstructed from a threshold number of shares and the external secret is retrieved. Next, the initial master secret is transformed into the final master secret using the external secret, and then the final master secret is used to decrypt the encrypted key of a given storage device.
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