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    Clone volume split of clone volume from parent volume with data tiered to object store
    1.
    发明授权
    Clone volume split of clone volume from parent volume with data tiered to object store 有权

    公开(公告)号：US12131046B1

    公开(公告)日：2024-10-29

    申请号：US18308703

    申请日：2023-04-28

    申请人： NetApp Inc.

    发明人： Cheryl Marie Thompson ,  Garima Choudhary ,  Rajesh Sudarsan

    IPC分类号： G06F3/06

    CPC分类号： G06F3/0644 ,  G06F3/0608

    摘要： Techniques are provided for splitting a clone volume from a parent volume whose data is stored within objects of an object store. A transfer map is used to track mappings of selectively created child object identifiers used to subsequently copy the one or more parent objects to create child objects corresponding to the child object identifiers. A consistency point phase is performed. For each child object identifier processed during the consistency point phase, an object state for a corresponding child object is set to a copy pending state. A reverse map is populated with a reverse map entry. The transfer map is traversed to copy the one or more parent objects as the child objects for splitting the clone volume from the parent volume. The reverse map is used to verify that the child objects are successfully created with valid data.

    OBJECT AND SEQUENCE NUMBER MANAGEMENT
    3.
    发明申请
    OBJECT AND SEQUENCE NUMBER MANAGEMENT 有权

    公开(公告)号：US20230052732A1

    公开(公告)日：2023-02-16

    申请号：US17976946

    申请日：2022-10-31

    申请人： NetApp Inc.

    发明人： Ananthan Subramanian ,  Sridevi Jantli ,  Anil Paul Thoppil ,  Cheryl Marie Thompson ,  Qinghua Zheng

    IPC分类号： G06F16/215 ,  G06F16/22 ,  G06F16/23

    摘要： Techniques are provided for orphan object detection, invalid sequence number detection, and asynchronous object cleanup. A storage system may store data within one or more tiers of storage, such as a storage tier (e.g., solid state storage and disks maintained by the storage system), a remote object store (e.g., storage provided by a third party storage provider), and/or other storage tiers. Orphan objects, within the remote object store, that are no longer used by the storage system may be detected and/or deleted. When an aggregate of volumes is deleted, corresponding objects, within the remote object store, may be identified and/or deleted. Invalid sequence numbers (e.g., lost or corrupt sequence numbers locally maintained in a metafile) assigned to objects within the remote object store may be identified, deleted, and/or fixed.

    MULTI-TIER WRITE ALLOCATION
    4.
    发明申请
    MULTI-TIER WRITE ALLOCATION 有权

    公开(公告)号：US20220300178A1

    公开(公告)日：2022-09-22

    申请号：US17833046

    申请日：2022-06-06

    申请人： NetApp Inc.

    发明人： Ganga Bhavani Kondapalli ,  Kevin Daniel Varghese ,  Ananthan Subramanian ,  Cheryl Marie Thompson ,  Anil Paul Thoppil

    IPC分类号： G06F3/06

    摘要： Techniques are provided for multi-tier write allocation. A storage system may store data within a multi-tier storage environment comprising a first storage tier (e.g., storage devices maintained by the storage system), a second storage tier (e.g., a remote object store provided by a third party storage provider), and/or other storage tiers. A determination is made that data (e.g., data of a write request received by the storage system) is to be stored within the second storage tier. The data is stored into a staging area of the first storage tier. A second storage tier location identifier, for referencing the data according to a format utilized by the second storage tier, is assigned to the data and provided to a file system hosting the data. The data is then destaged from the staging area into the second storage tier, such as within an object stored within the remote object store.

    OBJECT AND SEQUENCE NUMBER MANAGEMENT
    5.
    发明申请
    OBJECT AND SEQUENCE NUMBER MANAGEMENT 审中-公开

    公开(公告)号：US20200159705A1

    公开(公告)日：2020-05-21

    申请号：US16751766

    申请日：2020-01-24

    申请人： NetApp Inc.

    发明人： Ananthan Subramanian ,  Sridevi Jantli ,  Anil Paul Thoppil ,  Cheryl Marie Thompson ,  Qinghua Zheng

    IPC分类号： G06F16/215 ,  G06F16/23 ,  G06F16/22

    摘要： Techniques are provided for orphan object detection, invalid sequence number detection, and asynchronous object cleanup. A storage system may store data within one or more tiers of storage, such as a storage tier (e.g., solid state storage and disks maintained by the storage system), a remote object store (e.g., storage provided by a third party storage provider), and/or other storage tiers. Orphan objects, within the remote object store, that are no longer used by the storage system may be detected and/or deleted. When an aggregate of volumes is deleted, corresponding objects, within the remote object store, may be identified and/or deleted. Invalid sequence numbers (e.g., lost or corrupt sequence numbers locally maintained in a metafile) assigned to objects within the remote object store may be identified, deleted, and/or fixed.

    Multi-tier write allocation
    6.
    发明授权
    Multi-tier write allocation 有权

    公开(公告)号：US12124716B2

    公开(公告)日：2024-10-22

    申请号：US18357206

    申请日：2023-07-24

    申请人： NetApp Inc.

    发明人： Ganga Bhavani Kondapalli ,  Kevin Daniel Varghese ,  Ananthan Subramanian ,  Cheryl Marie Thompson ,  Anil Paul Thoppil

    IPC分类号： G06F3/06

    CPC分类号： G06F3/0631 ,  G06F3/061 ,  G06F3/0665 ,  G06F3/067

    摘要： Techniques are provided for multi-tier write allocation. A storage system may store data within a multi-tier storage environment comprising a first storage tier (e.g., storage devices maintained by the storage system), a second storage tier (e.g., a remote object store provided by a third party storage provider), and/or other storage tiers. A determination is made that data (e.g., data of a write request received by the storage system) is to be stored within the second storage tier. The data is stored into a staging area of the first storage tier. A second storage tier location identifier, for referencing the data according to a format utilized by the second storage tier, is assigned to the data and provided to a file system hosting the data. The data is then destaged from the staging area into the second storage tier, such as within an object stored within the remote object store.

    OBJECT FORMAT RESILIENT TO REMOTE OBJECT STORE ERRORS
    8.
    发明公开
    OBJECT FORMAT RESILIENT TO REMOTE OBJECT STORE ERRORS 审中-公开

    公开(公告)号：US20230289258A1

    公开(公告)日：2023-09-14

    申请号：US18165077

    申请日：2023-02-06

    申请人： NetApp Inc.

    发明人： Ananthan Subramanian ,  Ganga Bhavani Kondapalli ,  Cheryl Marie Thompson ,  Kevin Danil Varghese ,  Anil Paul Thoppil ,  Qinghua Zheng

    IPC分类号： G06F11/10 ,  G06F12/08 ,  G06F3/06 ,  G06F16/178

    CPC分类号： G06F11/1004 ,  G06F3/0619 ,  G06F12/08 ,  G06F16/178

    摘要： Techniques are provided for remote object store error handling. A storage system may store data within one or more tiers of storage, such as a local storage tier (e.g., solid state storage and disks maintained by the storage system), a remote object store (e.g., storage provided by a third party storage provider), and/or other storage tiers. Because the remote object store may not provide the same data consistency and guarantees that the storage system provides for clients such as through the local storage tier, additional validation is provided by the storage system for the remote object store. For example, when data is put into an object of the remote object store, a verification get operation is performed to read and validate information within a header of the object. Other verifications and checks are performed such as using a locally stored metafile to detect corrupt or lost metadata and/or objects.

    Object format resilient to remote object store errors
    9.
    发明授权
    Object format resilient to remote object store errors 有权

    公开(公告)号：US11573855B2

    公开(公告)日：2023-02-07

    申请号：US17582221

    申请日：2022-01-24

    申请人： NetApp Inc.

    发明人： Ananthan Subramanian ,  Ganga Bhavani Kondapalli ,  Cheryl Marie Thompson ,  Kevin Daniel Varghese ,  Anil Paul Thoppil ,  Qinghua Zheng

    IPC分类号： G06F11/10 ,  G06F12/08 ,  G06F3/06 ,  G06F16/178

    摘要： Techniques are provided for remote object store error handling. A storage system may store data within one or more tiers of storage, such as a local storage tier (e.g., solid state storage and disks maintained by the storage system), a remote object store (e.g., storage provided by a third party storage provider), and/or other storage tiers. Because the remote object store may not provide the same data consistency and guarantees that the storage system provides for clients such as through the local storage tier, additional validation is provided by the storage system for the remote object store. For example, when data is put into an object of the remote object store, a verification get operation is performed to read and validate information within a header of the object. Other verifications and checks are performed such as using a locally stored metafile to detect corrupt or lost metadata and/or objects.

    Multi-tier destaging write allocation
    10.
    发明授权
    Multi-tier destaging write allocation 有权

    公开(公告)号：US11354049B2

    公开(公告)日：2022-06-07

    申请号：US16679914

    申请日：2019-11-11

    申请人： NetApp Inc.

    发明人： Ganga Bhavani Kondapalli ,  Kevin Daniel Varghese ,  Ananthan Subramanian ,  Cheryl Marie Thompson ,  Anil Paul Thoppil

    IPC分类号： G06F3/06

    摘要： Techniques are provided for multi-tier write allocation. A storage system may store data within a multi-tier storage environment comprising a first storage tier (e.g., storage devices maintained by the storage system), a second storage tier (e.g., a remote object store provided by a third party storage provider), and/or other storage tiers. A determination is made that data (e.g., data of a write request received by the storage system) is to be stored within the second storage tier. The data is stored into a staging area of the first storage tier. A second storage tier location identifier, for referencing the data according to a format utilized by the second storage tier, is assigned to the data and provided to a file system hosting the data. The data is then destaged from the staging area into the second storage tier, such as within an object stored within the remote object store.