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    GRANSETS FOR MANAGING CONSISTENCY GROUPS OF DISPERSED STORAGE ITEMS
    1.
    发明申请
    GRANSETS FOR MANAGING CONSISTENCY GROUPS OF DISPERSED STORAGE ITEMS 审中-公开

    公开(公告)号：US20170316029A1

    公开(公告)日：2017-11-02

    申请号：US15140992

    申请日：2016-04-28

    Applicant: NetApp Inc.

    Inventor： Devang Kundanlal Shah ,  Dipankar Roy ,  Krishnaveni Budati ,  Kai Tan ,  Pranab Patnaik ,  Akhil Kaushik

    IPC: G06F17/30

    CPC classification number: G06F16/178 ,  G06F3/0605 ,  G06F3/065 ,  G06F3/0665 ,  G06F3/067 ,  G06F16/122 ,  G06F16/128

    Abstract: One or more techniques and/or computing devices are provided for managing an arbitrary set of storage items using a granset. For example, a storage controller may host a plurality of storage items and/or logical unit numbers (LUNs). A subset of the storage items are grouped into a consistency group. A granset is created for tracking, managing, and/or providing access to the storage items within the consistency group. For example, the granset comprises application programming interfaces (APIs) and/or properties used to provide certain levels of access to the storage items (e.g., read access, write access, no access), redirect operations to access either data of an active file system or to a snapshot, fence certain operations (e.g., rename and delete operations), and/or other properties that apply to each storage item within the consistency group. Thus, the granset provides a persistent on-disk layout used to manage an arbitrary set of storage items.

    Gransets for managing consistency groups of dispersed storage items
    2.
    发明授权
    Gransets for managing consistency groups of dispersed storage items 有权

    公开(公告)号：US11409708B2

    公开(公告)日：2022-08-09

    申请号：US16679545

    申请日：2019-11-11

    Applicant: NetApp Inc.

    Inventor： Devang Kundanlal Shah ,  Dipankar Roy ,  Krishnaveni Budati ,  Kai Tan ,  Pranab Patnaik ,  Akhil Kaushik

    IPC: G06F16/10 ,  G06F16/178 ,  G06F16/11 ,  G06F3/06

    Abstract: One or more techniques and/or computing devices are provided for managing an arbitrary set of storage items using a granset. For example, a storage controller may host a plurality of storage items and/or logical unit numbers (LUNs). A subset of the storage items are grouped into a consistency group. A granset is created for tracking, managing, and/or providing access to the storage items within the consistency group. For example, the granset comprises application programming interfaces (APIs) and/or properties used to provide certain levels of access to the storage items (e.g., read access, write access, no access), redirect operations to access either data of an active file system or to a snapshot, fence certain operations (e.g., rename and delete operations), and/or other properties that apply to each storage item within the consistency group. Thus, the granset provides a persistent on-disk layout used to manage an arbitrary set of storage items.

    Delegations for non-regular files
    5.
    发明授权
    Delegations for non-regular files 有权

    公开(公告)号：US09934230B1

    公开(公告)日：2018-04-03

    申请号：US13780716

    申请日：2013-02-28

    Applicant: NetApp, Inc.

    Inventor： Dipankar Roy ,  Andrew Narver ,  Robert Wyckoff Hyer, Jr.

    IPC: G06F17/30

    CPC classification number: G06F17/30132

    Abstract: Embodiments described herein enable a storage system configured with a cache, i.e., a caching storage system, to obtain soft locks on a plurality of files, including non-regular file types, supported by a plurality of file access protocols. The cache is illustratively embodied as a flexible volume configured to temporarily store information, such as contents of the files, through replication of attributes and data of the files from an origin storage system. The soft locks are illustratively implemented as delegations; a delegation on a file enables the caching storage system to serve the attributes and the data for the file without verifying validity of the data with the origin storage system.

    GRANSETS FOR MANAGING CONSISTENCY GROUPS OF DISPERSED STORAGE ITEMS
    6.
    发明申请
    GRANSETS FOR MANAGING CONSISTENCY GROUPS OF DISPERSED STORAGE ITEMS 有权

    公开(公告)号：US20220382484A1

    公开(公告)日：2022-12-01

    申请号：US17882713

    申请日：2022-08-08

    Applicant: NetApp Inc.

    Inventor： Devang Kundanlal Shah ,  Dipankar Roy ,  Krishnaveni Budati ,  Kai Tan ,  Pranab Patnaik ,  Akhil Kaushik

    IPC: G06F3/06

    Abstract: One or more techniques and/or computing devices are provided for managing an arbitrary set of storage items using a granset. For example, a storage controller may host a plurality of storage items and/or logical unit numbers (LUNs). A subset of the storage items are grouped into a consistency group. A granset is created for tracking, managing, and/or providing access to the storage items within the consistency group. For example, the granset comprises application programming interfaces (APIs) and/or properties used to provide certain levels of access to the storage items (e.g., read access, write access, no access), redirect operations to access either data of an active file system or to a snapshot, fence certain operations (e.g., rename and delete operations), and/or other properties that apply to each storage item within the consistency group. Thus, the granset provides a persistent on-disk layout used to manage an arbitrary set of storage items.

    Gransets for managing consistency groups of dispersed storage items
    7.
    发明授权
    Gransets for managing consistency groups of dispersed storage items 有权

    公开(公告)号：US10482066B2

    公开(公告)日：2019-11-19

    申请号：US15140992

    申请日：2016-04-28

    Applicant: NetApp Inc.

    Inventor： Devang Kundanlal Shah ,  Dipankar Roy ,  Krishnaveni Budati ,  Kai Tan ,  Pranab Patnaik ,  Akhil Kaushik

    IPC: G06F16/20 ,  G06F16/178 ,  G06F16/11 ,  G06F3/06

    Abstract: One or more techniques and/or computing devices are provided for managing an arbitrary set of storage items using a granset. For example, a storage controller may host a plurality of storage items and/or logical unit numbers (LUNs). A subset of the storage items are grouped into a consistency group. A granset is created for tracking, managing, and/or providing access to the storage items within the consistency group. For example, the granset comprises application programming interfaces (APIs) and/or properties used to provide certain levels of access to the storage items (e.g., read access, write access, no access), redirect operations to access either data of an active file system or to a snapshot, fence certain operations (e.g., rename and delete operations), and/or other properties that apply to each storage item within the consistency group. Thus, the granset provides a persistent on-disk layout used to manage an arbitrary set of storage items.

    Gransets for managing consistency groups of dispersed storage items
    8.
    发明授权
    Gransets for managing consistency groups of dispersed storage items 有权

    公开(公告)号：US12229087B2

    公开(公告)日：2025-02-18

    申请号：US18527634

    申请日：2023-12-04

    Applicant: NetApp Inc.

    Inventor： Devang Kundanlal Shah ,  Dipankar Roy ,  Krishnaveni Budati ,  Kai Tan ,  Pranab Patnaik ,  Akhil Kaushik

    IPC: G06F16/10 ,  G06F3/06 ,  G06F16/11 ,  G06F16/178

    Abstract: One or more techniques and/or computing devices are provided for managing an arbitrary set of storage items using a granset. For example, a storage controller may host a plurality of storage items and/or logical unit numbers (LUNs). A subset of the storage items are grouped into a consistency group. A granset is created for tracking, managing, and/or providing access to the storage items within the consistency group. For example, the granset comprises application programming interfaces (APIs) and/or properties used to provide certain levels of access to the storage items (e.g., read access, write access, no access), redirect operations to access either data of an active file system or to a snapshot, fence certain operations (e.g., rename and delete operations), and/or other properties that apply to each storage item within the consistency group. Thus, the granset provides a persistent on-disk layout used to manage an arbitrary set of storage items.

    Write-Back Caching with Asynchronous Write-Back Capabilities
    9.
    发明公开
    Write-Back Caching with Asynchronous Write-Back Capabilities 审中-公开

    公开(公告)号：US20240330184A1

    公开(公告)日：2024-10-03

    申请号：US18542273

    申请日：2023-12-15

    Applicant: NetApp, Inc.

    Inventor： Dipankar Roy

    IPC: G06F12/0813

    CPC classification number: G06F12/0813

    Abstract: A method, computing device, and non-transitory machine-readable medium for performing asynchronous write-backs. Data is written to a cache file in a cache. The cache corresponds to a volume. A tracking metafile is updated based on the data written to the cache file. A record in the tracking metafile is determined to be full. The record corresponds to a group of blocks in the cache file. A write-back of data stored in the group of blocks in the cache file that corresponds to the record to the volume is initiated. The write-back is determined to have been completed. The tracking metafile us updated to indicate that the write-back has been completed.

    Write-Back Caching Across Clusters
    10.
    发明公开
    Write-Back Caching Across Clusters 审中-公开

    公开(公告)号：US20240329878A1

    公开(公告)日：2024-10-03

    申请号：US18194332

    申请日：2023-03-31

    Applicant: NetApp, Inc.

    Inventor： Dipankar Roy

    IPC: G06F3/06

    CPC classification number: G06F3/0659 ,  G06F3/0613 ,  G06F3/0653 ,  G06F3/067 ,  G06F12/0804 ,  G06F2212/1016 ,  G06F2212/1024 ,  G06F2212/154

    Abstract: A method, computing device, and non-transitory machine-readable medium for write-back caching within a same or different clusters. A client write request to write data to a volume (for which the client has mounted the corresponding cache) may be received at a network module of a node and processed to generate a write request that can be forwarded to a disk module hosting the cache (at a same or different node than received the client write request). The data is written to the cache and confirmation of the write is sent to the client. Accumulated data in the cache is written back to the volume (hosted by a different node than the cache) when at least one of a cache file threshold or a cache threshold is met. These parameters are set to values that reduce write latency, increase throughput, and help ensure data consistency and resiliency.

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