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    Cross-platform replication
    83.
    发明授权
    Cross-platform replication 有权

    公开(公告)号：US11921597B2

    公开(公告)日：2024-03-05

    申请号：US17828900

    申请日：2022-05-31

    Applicant: NetApp Inc.

    Inventor： Atul Ramesh Pandit ,  Vijay M. Deshmukh ,  Michael Lee Federwisch ,  Ling Zheng ,  Kiyoshi James Komatsu ,  Rachita Kothiyal

    IPC: G06F11/00 ,  G06F11/20 ,  H04L67/1095 ,  H04L67/1097

    CPC classification number: G06F11/2069 ,  G06F11/2071 ,  G06F11/2092 ,  H04L67/1095 ,  H04L67/1097 ,  G06F2201/805

    Abstract: One or more techniques and/or computing devices are provided for cross-platform replication. For example, a replication relationship may be established between a first storage endpoint and a second storage endpoint, where at least one of the storage endpoints, such as the first storage endpoint, lacks or has incompatible functionality to perform and manage replication because the storage endpoints have different storage platforms that store data differently, use different control operations and interfaces, etc. Accordingly, replication destination workflow, replication source workflow, and/or a proxy representing the first storage endpoint may be implemented at the second storage endpoint comprising the replication functionality. In this way, replication, such as snapshot replication, may be implemented between the storage endpoints by the second storage endpoint using the replication destination workflow, the replication source workflow, and/or the proxy that either locally executes tasks or routes tasks to the first storage endpoint such as for data access.

    SNAPSHOT METADATA ARRANGEMENT FOR EFFICIENT CLOUD INTEGRATED DATA MANAGEMENT
    84.
    发明公开
    SNAPSHOT METADATA ARRANGEMENT FOR EFFICIENT CLOUD INTEGRATED DATA MANAGEMENT 审中-公开

    公开(公告)号：US20230334013A1

    公开(公告)日：2023-10-19

    申请号：US18333627

    申请日：2023-06-13

    Applicant: NetApp. Inc.

    Inventor： Sharad Jain ,  Hrishikesh Ashok Tapaswi ,  Ling Zheng ,  Onkar Bhat ,  Akhil Kaushik

    IPC: G06F16/11 ,  G06F16/13 ,  G06F11/14

    CPC classification number: G06F16/128 ,  G06F16/13 ,  G06F11/1464 ,  G06F11/1448 ,  G06F11/1469 ,  G06F2201/805 ,  G06F2201/84

    Abstract: A storage appliance arranges snapshot data and snapshot metadata into different structures, and arranges the snapshot metadata to facilitate efficient snapshot manipulation, which may be for snapshot management or snapshot restore. The storage appliance receives snapshots according to a forever incremental configuration and arranges snapshot metadata into different types of records. The storage appliance stores these records in key-value stores maintained for each defined data collection (e.g., volume). The storage appliance arranges the snapshot metadata into records for inode information, records for directory information, and records that map source descriptors of data blocks to snapshot file descriptors. The storage appliance uses a locally generated snapshot identifier as a key prefix for the records to conform to a sort constrain of the key-value store, which allows the efficiency of the key-value store to be leveraged. The snapshot metadata arrangement facilitates efficient snapshot restore, file restore, and snapshot reclamation.

    Incremental restore of a virtual machine
    85.
    发明授权
    Incremental restore of a virtual machine 有权

    公开(公告)号：US11615001B2

    公开(公告)日：2023-03-28

    申请号：US16856322

    申请日：2020-04-23

    Applicant: NetApp Inc.

    Inventor： Abhishek Naidu ,  Jose Mathew ,  Ling Zheng ,  Ravindra Kuramkote

    IPC: G06F11/14 ,  G06F9/455 ,  G06F3/06

    Abstract: Techniques are provided for incrementally restoring a virtual machine hosted by a computing environment. In response to receiving an indication that the virtual machine is to be incrementally restored, a snapshot of the virtual machine may be created while the virtual machine is shut down into an off state. The snapshot is transmitted to a storage environment as a common snapshot. The snapshot and the common snapshot are common snapshots comprising a same representation of the virtual machine. The common snapshot and a prior snapshot of the virtual machine are evaluated to identify a data difference of the virtual machine between the common snapshot and the prior snapshot. An incremental restore is performed of the virtual machine by transmitting the data difference from the storage environment to the computing environment to restore the virtual machine to a state represented by the prior snapshot.

    Cross-platform replication
    86.
    发明授权
    Cross-platform replication 有权

    公开(公告)号：US11347605B2

    公开(公告)日：2022-05-31

    申请号：US16805885

    申请日：2020-03-02

    Applicant: NetApp Inc.

    Inventor： Atul Ramesh Pandit ,  Vijay M. Deshmukh ,  Michael Lee Federwisch ,  Ling Zheng ,  Kiyoshi James Komatsu ,  Rachita Kothiyal

    IPC: G06F11/00 ,  G06F11/20 ,  H04L67/1095 ,  H04L67/1097

    Abstract: One or more techniques and/or computing devices are provided for cross-platform replication. For example, a replication relationship may be established between a first storage endpoint and a second storage endpoint, where at least one of the storage endpoints, such as the first storage endpoint, lacks or has incompatible functionality to perform and manage replication because the storage endpoints have different storage platforms that store data differently, use different control operations and interfaces, etc. Accordingly, replication destination workflow, replication source workflow, and/or a proxy representing the first storage endpoint may be implemented at the second storage endpoint comprising the replication functionality. In this way, replication, such as snapshot replication, may be implemented between the storage endpoints by the second storage endpoint using the replication destination workflow, the replication source workflow, and/or the proxy that either locally executes tasks or routes tasks to the first storage endpoint such as for data access.

    Space savings reporting for storage system supporting snapshot and clones
    88.
    发明授权
    Space savings reporting for storage system supporting snapshot and clones 有权

    公开(公告)号：US10929022B2

    公开(公告)日：2021-02-23

    申请号：US15137542

    申请日：2016-04-25

    Applicant: NetApp, Inc.

    Inventor： Atul Goel ,  Ling Zheng ,  Prahlad Purohit

    IPC: G06F3/06

    Abstract: A technique efficiently determines accurate storage space savings reported to a host coupled to a reference-counted storage system that employs de-duplication and compression, wherein the storage space savings relate to snapshots and/or clones supported by the storage system. The snapshot/clone may be represented as an independent volume, and embodied as a respective read-only copy (snapshot) or read-write copy (clone) of a parent volume. Metadata is illustratively organized as one or more multi-level dense trees, wherein each level of each dense tree includes volume metadata entries for storing the metadata. The metadata is illustratively embodied as mappings from LBAs of a LUN to extent keys. Space adjustment counters, such as clone space adjustment (CSA) and diverged space adjustment (DSA) counters, may be employed when determining the storage space savings. The CSA counter is equal to the sum of mapped storage space across all levels of a dense tree. The DSA counter for the clone and for the snapshot equals the total mapped storage space in the level. The storage space savings may be determined by computing a value equal to the addition of the CSA counter to the total amount of data and metadata written to the LUN minus the DSA counters and, thereafter, dividing the value by the total amount of de-duplicated and compressed data for the LUN that is physically stored.

    DATA BLOCK NAME BASED EFFICIENT RESTORE OF MULTIPLE FILES FROM DEDUPLICATED STORAGE
    89.
    发明申请
    DATA BLOCK NAME BASED EFFICIENT RESTORE OF MULTIPLE FILES FROM DEDUPLICATED STORAGE 审中-公开

    公开(公告)号：US20190129810A1

    公开(公告)日：2019-05-02

    申请号：US15795551

    申请日：2017-10-27

    Applicant: NetApp, Inc.

    Inventor： Ajay Pratap Singh Kushwah ,  Ling Zheng ,  Sharad Jain

    IPC: G06F11/14 ,  G06F17/30

    Abstract: A storage appliance can be designed to facilitate efficient restore of multiple backed up files in a system that allows files to share data blocks. A data management application or storage OS names data blocks and communicates those names to the storage appliance when backing up to or through the storage appliance. The storage appliance can leverage the data block names when restoring a group of files by restoring at data block granularity instead of file granularity. Restoring at the granularity of the data blocks by their names allows the storage appliance to avoid repeatedly sending a same data block to the restore requestor (e.g., a storage OS or data management application) while still instructing the restore requestor how to reconstruct the corresponding file(s) with mappings between valid data ranges and the named data blocks.

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