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    CO-LOCATED JOURNALING AND DATA STORAGE FOR WRITE REQUESTS
    26.
    发明申请
    CO-LOCATED JOURNALING AND DATA STORAGE FOR WRITE REQUESTS 有权

    公开(公告)号：US20220357868A1

    公开(公告)日：2022-11-10

    申请号：US17868260

    申请日：2022-07-19

    Applicant: NetApp, Inc.

    Inventor： Kevin Daniel Varghese ,  Ananthan Subramanian ,  Parag Sarfare ,  Sandeep Yadav ,  Suhas Urkude ,  Rajesh Khandelwal

    IPC: G06F3/06

    Abstract: A method and system for co-locating journaling and data storage based on write requests. A write request that includes metadata and data is received from a client. A logical storage unit for storing the metadata and the data is identified. The logical storage unit is divided into a journal partition and a volume partition. The journal partition includes a first log and a second log. Which of the first log and the second log is an active log and which of the first log and the second log is an inactive log are identified. The metadata is recorded in a first location in the active log and the data is recorded in a second location in the active log during a single I/O operation. A reply is sent to the client after the metadata and the data are recorded in the journal partition.

    OBJECT FORMAT RESILIENT TO REMOTE OBJECT STORE ERRORS
    28.
    发明申请
    OBJECT FORMAT RESILIENT TO REMOTE OBJECT STORE ERRORS 有权

    公开(公告)号：US20220147418A1

    公开(公告)日：2022-05-12

    申请号：US17582221

    申请日：2022-01-24

    Applicant: NetApp Inc.

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

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

    Abstract: 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
    29.
    发明授权
    Object format resilient to remote object store errors 有权

    公开(公告)号：US11231989B2

    公开(公告)日：2022-01-25

    申请号：US17100905

    申请日：2020-11-22

    Applicant: NetApp Inc.

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

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

    Abstract: 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.

    STORAGE TIER VERIFICATION CHECKS
    30.
    发明申请
    STORAGE TIER VERIFICATION CHECKS 审中-公开

    公开(公告)号：US20180365281A1

    公开(公告)日：2018-12-20

    申请号：US15624891

    申请日：2017-06-16

    Applicant: NetApp Inc.

    Inventor： Kayuri Hasmukh Patel ,  Qinghua Zheng ,  Sumith Makam ,  Kevin Daniel Varghese ,  Yuvraj Ajaykumar Patel ,  Sateesh Kumar Pola ,  Sharmi Suresh Kumar Nair ,  Mihir Gorecha

    IPC: G06F17/30

    Abstract: Techniques are provided for storage tier verification checks. A determination is made that a mount operation of an aggregate of a set of volumes stored within a multi-tier storage environment has completed. A first metafile and a second metafile are maintained to track information related to the storage of objects of a volume of the aggregate within a remote object store that is a tier of the multi-tier storage environment. A distributed verification is performed between the first metafile and the second metafile to identify an inconsistency. Accordingly, the first metafile and the second metafile are reconciled to address the inconsistency so that storage information within the first metafile and the second metafile are consistent.

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