Patents Assigned to Pure Storage Inc.
  • Readable data determination
    Patent number: 11847013
    Abstract: Data associated with a write request is stored at a storage device of multiple solid-state storage devices. A determination as to whether the data stored at the storage device is readable is made by determining whether a number of subsequent programming operations have been performed since the data was stored at the storage device. A notification that the stored data is readable from the storage device is generated upon determining that the data is readable.
    Type: Grant
    Filed: January 6, 2022
    Date of Patent: December 19, 2023
    Assignee: PURE STORAGE, INC.
    Inventors: Gordon James Coleman, Andrew R. Bernat, Peter E. Kirkpatrick
  • Efficient replication using metadata
    Patent number: 11847336
    Abstract: A system and method for performing replication using mediums. A snapshot ‘S’ is selected for replication, and the anchor medium ‘M’ of S is identified. The replica storage array ‘R’ to which M is being replicated determines a list of medium extents which are available. R sends this list to an original storage array ‘O’ and O generates a list of medium extents which need to be sent to R. Only those medium extents corresponding to M which R does not already have will be sent from O to R. Also, R can obtain medium extents from other source storage arrays during the replication process.
    Type: Grant
    Filed: April 29, 2020
    Date of Patent: December 19, 2023
    Assignee: PURE STORAGE, INC.
    Inventors: Ethan Miller, Andrew R. Bernat, John Colgrove, Alan Driscoll, Christopher Golden, Steve Hodgson, Ganesh Ramanarayanan, Malcolm Sharpe
  • Reassignment of requests for high availability
    Patent number: 11847320
    Abstract: A method of operating a storage system is disclosed. The method includes determining a storage cluster among storage arrays of the storage system. Each storage array includes at least two controllers and at least one storage shelf. The at least two controllers are configured to function as both a primary controller for a first storage array and a secondary controller for a second storage array.
    Type: Grant
    Filed: December 19, 2022
    Date of Patent: December 19, 2023
    Assignee: PURE STORAGE, INC.
    Inventor: Ori Shalev
  • Budgeting open blocks of a storage unit based on power loss prevention
    Patent number: 11847331
    Abstract: A storage unit has one or more processing devices, a solid-state drive and an open blocks cache memory. The open blocks cache memory holds open blocks of data or metadata and holds closed blocks of data or metadata pending writing to the solid-state drive. Closed blocks of data or metadata are written to the solid-state drive and open blocks of data or metadata are written to the open blocks cache memory. Values for open blocks in the open blocks cache memory are tracked. The values are adjusted in a first direction when an open block is written to the open blocks cache memory, and the values are adjusted in a second direction when an open block in the open blocks cache memory is closed and written from the open blocks cache memory to the solid-state drive.
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: December 19, 2023
    Assignee: PURE STORAGE, INC.
    Inventors: Andrew R. Bernat, Wei Tang, Phillip Hord, Gordon James Coleman
  • Enabling communication between a single-port device and multiple storage system controllers
    Patent number: 11847071
    Abstract: Enabling communication between multiple storage controllers and a single-ported storage device, including determining, by an arbiter, that a first storage system controller of a plurality of storage system controllers has gained exclusive access to a single-ported storage device having a plurality of lanes; and in response to the determination, enabling communication between the first storage system controller and the storage device; and preventing communication between the storage device and at least one other storage system controller of the plurality of storage system controllers.
    Type: Grant
    Filed: December 30, 2021
    Date of Patent: December 19, 2023
    Assignee: PURE STORAGE, INC.
    Inventor: Peter Kirkpatrick
  • Optimizing resiliency groups for data regions of a storage system
    Patent number: 11847324
    Abstract: A storage system establishes a staging region, for temporary writing of arriving data, and a stable region, for transfer of data from the staging region, in storage memory. The storage system establishes resiliency groups, each with a characteristic level of redundancy that is settable on an individual basis. The storage system performs data accesses of data stripes in accordance with the staging region, the stable region, a first resiliency group and a second resiliency group.
    Type: Grant
    Filed: October 27, 2021
    Date of Patent: December 19, 2023
    Assignee: PURE STORAGE, INC.
    Inventors: Robert Lee, Boris Feigin, Ying Gao, Ronald Karr
  • Storage system parity based on system characteristics
    Patent number: 11847025
    Abstract: Providing for increased flexibility for large scale parity, the including: writing data to a storage system, including utilizing a first data protection scheme; identifying, for storage media in the storage system, characteristics of the storage media; identifying, in dependence up the characteristics for the storage media, a second data protection scheme to use for the data; and writing the data to the to the storage system utilizing the second data protection scheme.
    Type: Grant
    Filed: November 1, 2022
    Date of Patent: December 19, 2023
    Assignee: PURE STORAGE, INC.
    Inventors: Ethan Miller, Robert Lee, Par Botes, Ronald Karr
  • Zone namespace
    Patent number: 11842053
    Abstract: A list of a available zones across respective SSD storage portions of a plurality of zoned storage devices of a storage system is maintained. Data is received from multiple sources, wherein the data is associated with processing a dataset, the dataset including multiple volumes and associated metadata. Shards of the data are determined such that each shard is capable of being written in parallel with the remaining shards. The shards are mapped to a subset of the available zones, respectively. The shards are written to the subset of the available zones in parallel.
    Type: Grant
    Filed: December 19, 2022
    Date of Patent: December 12, 2023
    Assignee: PURE STORAGE, INC.
    Inventor: Ronald Karr
  • Storage unit connection security in a storage network and methods for use therewith
    Patent number: 11841770
    Abstract: A method begins with a processing module selecting one of a plurality of dispersed storage (DS) processing modules for facilitating access to a dispersed storage network (DSN) memory. The method continues with the processing module sending a DSN memory access request to the one of the plurality of DS processing modules. The method continues with the processing module selecting another one of the plurality of DS processing modules when no response is received within a given time frame or when the response to the access request does not include an access indication. The method continues with the processing module sending the DSN memory access request to the another one of the plurality of DS processing modules.
    Type: Grant
    Filed: November 3, 2021
    Date of Patent: December 12, 2023
    Assignee: Pure Storage, Inc.
    Inventors: Jason K. Resch, Wesley Leggette
  • Encrypting data with a unique key
    Patent number: 11841984
    Abstract: Utilizing a non-repeating identifier to encrypt data, including: receiving a request to write data to a storage device; selecting a segment-offset pair where the data will be stored, where the selected segment-offset pair is unique to every other segment-offset pair utilized during the lifetime of the storage device; and encrypting the data in dependence upon an identifier of the segment-offset pair.
    Type: Grant
    Filed: March 11, 2020
    Date of Patent: December 12, 2023
    Assignee: PURE STORAGE, INC.
    Inventors: John Colgrove, Mark L. McAuliffe, Ethan L. Miller, Naveen Neelakantam, Marco Sanvido, Neil A. Vachharajani, Taher Vohra
  • Determining storage capacity utilization based on deduplicated data
    Patent number: 11836349
    Abstract: Determining effective space utilization in a storage system, including: identifying an amount of data stored within the storage system that is associated with a user-visible entity; identifying an amount of data stored within the storage system that is associated with all snapshots of the user-visible entity; and reporting, in dependence upon the an amount of data stored within the storage system that is associated with the user-visible entity and the amount of data stored within the storage system that is associated with all snapshots of the user-visible entity, a total capacity utilization associated with the user-visible entity.
    Type: Grant
    Filed: September 30, 2022
    Date of Patent: December 5, 2023
    Assignee: PURE STORAGE, INC.
    Inventors: Matthew Fay, John Colgrove, Martin Harriman
  • Secret regeneration from distributed shares
    Patent number: 11838412
    Abstract: A processor-based method for secret sharing in a computing system is provided. The method includes encrypting shares of a new secret, using a previous secret and distributing unencrypted shares of the new secret and the encrypted shares of the new secret, to members of the computing system. The method includes decrypting at least a subset of the encrypted shares of the new secret, using the previous secret and regenerating the new secret from at least a subset of a combination of the unencrypted shares of the new secret and the decrypted shares of the new secret.
    Type: Grant
    Filed: September 27, 2022
    Date of Patent: December 5, 2023
    Assignee: PURE STORAGE, INC.
    Inventors: Ethan L. Miller, Andrew R. Bernat
  • Performance metric-based improvement of one or more conditions of a storage array
    Patent number: 11836118
    Abstract: An illustrative apparatus is configured to carry out the steps of: comparing one or more performance metrics of a particular storage array in a plurality of storage arrays to one or more corresponding performance metrics of one or more other storage arrays; identifying, based on the comparing, one or more actions for improving one or more conditions of the particular storage array; and presenting one or more projected effects of implementing the one or more actions on the storage array.
    Type: Grant
    Filed: May 5, 2021
    Date of Patent: December 5, 2023
    Assignee: Pure Storage, Inc.
    Inventors: Benjamin Borowiec, Terence Noonan
  • Memory aligned copy operation execution
    Patent number: 11836357
    Abstract: Optimizing copy operations in a storage array, includes combining, in dependence upon a metadata optimization policy, a plurality of copy operations into a single copy operation and splitting the single copy operation into an optimized set of executable copy operations that copy data based on memory alignment.
    Type: Grant
    Filed: April 28, 2022
    Date of Patent: December 5, 2023
    Assignee: PURE STORAGE, INC.
    Inventors: Christopher Golden, Scott Smith, Luke Paulsen, David Grunwald, Jianting Cao
  • Storing data in an expanded storage pool of a vast storage network
    Patent number: 11836369
    Abstract: A method includes encoding data in accordance with a width parameter to produce a first set of data slices. Storage of the first set of data slices is maintained in a set of storage units of a storage pool. An expanded set of storage units of the storage pool is determined based on an additional subset of storage units added to the storage pool. Storage of the first set of data slices is maintained in the set of storage units after addition of the additional subset of storage units added to the storage pool. An updated width parameter is determined by increasing the width parameter based on the expanded set of storage units. The data is encoded in accordance with the updated width parameter to produce a second set of data slices. Storage of the second set of data slices is maintained in the expanded set of storage units.
    Type: Grant
    Filed: December 29, 2020
    Date of Patent: December 5, 2023
    Assignee: PURE STORAGE, INC.
    Inventors: Ethan S. Wozniak, Andrew D. Baptist, Greg R. Dhuse, Ilya Volvovski, Jason K. Resch, Ravi V. Khadiwala, Wesley B. Leggette
  • Synchronizing metadata in a cloud-based storage system
    Patent number: 11838359
    Abstract: Symmetric storage using a cloud-based storage system, including: receiving, at a cloud-based storage system among storage systems synchronously replicating a dataset, an I/O operation directed to the dataset; determining, in dependence upon the I/O operation, a metadata update describing a mapping of segments of content to an address within a storage object, wherein the storage object includes the dataset; and synchronizing metadata on another storage system of the storage systems by sending the metadata update from the cloud-based storage system to the other storage system to update a metadata representation on the second storage system in accordance with the metadata update.
    Type: Grant
    Filed: November 22, 2022
    Date of Patent: December 5, 2023
    Assignee: PURE STORAGE, INC.
    Inventors: Aswin Karumbunathan, Joshua Freilich, Naveen Neelakantam, Ronald Karr
  • Upgrade for system with differing capacities
    Patent number: 11836348
    Abstract: In one implementation, a system resource is added to a storage system, for a resource-preserving upgrade. An upgrade component is coupled to the storage system as a temporary storage system shelf. Storage drives are moved from the storage system to the upgrade component. One or more storage controllers of the upgrade component are promoted to take over data services from the storage system.
    Type: Grant
    Filed: May 25, 2022
    Date of Patent: December 5, 2023
    Assignee: PURE STORAGE, INC.
    Inventors: Anthony Niven, Andrew R. Bernat, Eric Kelly Blanchard, Ashish Karkare, Peter E. Kirkpatrick
  • Dispersed storage network file system directory
    Patent number: 11836043
    Abstract: A method includes determining virtual memory use of a vault based on virtual memory use of one dispersed storage (DS) unit of a set of DS units that services the vault within the DSN, where data is dispersed storage error encoded in accordance with dispersed data storage parameters to produce a plurality of sets of error coded (EC) data slices that are stored in the vault. The method continues by comparing the virtual memory use of the vault to one or more vault thresholds. When the virtual memory use of the vault is less than or equal to a first vault threshold of the one or more vault thresholds, the method continues by instructing a memory state of the vault to be in a normal state, wherein when the vault is in the normal state, a write mode is activated allowing write requests of EC data slices to the vault.
    Type: Grant
    Filed: May 10, 2019
    Date of Patent: December 5, 2023
    Assignee: Pure Storage, Inc.
    Inventors: Andrew Baptist, Manish Motwani
  • Managing Brute Force Attacks in a Distributed Storage System
    Publication number: 20230388101
    Abstract: A method for execution in a storage network begins by performing a key derivation function on a password to produce a key and issuing a set of passwords based on the key to a set of storage units, where a data object is dispersed error encoded in accordance with dispersed error encoding parameters to produce a set of encoded data slices and the set of encoded data slices are stored in the set of storage units. The method continues, by receiving at least a decode threshold number of confidential information responses from the set of storage units and regenerating a set of keys for the confidential information responses. The method then continues by decrypting the confidential information responses using the set of keys to reproduce a set of encoded data slices and dispersed storage error decoding a decode threshold number of the set of encoded data slices to produce recovered data.
    Type: Application
    Filed: August 8, 2023
    Publication date: November 30, 2023
    Applicant: Pure Storage, Inc.
    Inventors: Jason K. Resch, Greg R. Dhuse, Bart R. Cilfone
  • Read Requests in a Directory-Less Storage Network
    Publication number: 20230385168
    Abstract: A method for execution by a storage unit in a directory-less storage network includes receiving a read request regarding a data segment of a data object, where the data segment was error encoded into a set of encoded data slices. The method further includes outputting a read response regarding an encoded data slice of the set of encoded data slices that is stored by the storage unit. The method further includes identifying an other storage unit of the directory-less storage network to which the read request is to be forwarded, where the identifying the other storage unit includes one or more of accessing a table of localized mapping regarding one or more neighboring storage units to identify the other storage unit, and receiving a message from a network management unit. The method further includes forwarding the read request to the other storage unit.
    Type: Application
    Filed: August 9, 2023
    Publication date: November 30, 2023
    Applicant: Pure Storage, Inc.
    Inventors: Gary W. Grube, Timothy W. Markison