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    VOLUME GROUP RESTORE FROM REMOTE OBJECT STORE
    2.
    发明公开
    VOLUME GROUP RESTORE FROM REMOTE OBJECT STORE 审中-公开

    公开(公告)号：US20230350758A1

    公开(公告)日：2023-11-02

    申请号：US17730899

    申请日：2022-04-27

    Applicant: NetApp Inc

    Inventor： Rakesh Bhargava M.R. ,  Murali Subramanian ,  Tijin George ,  Ching-Yuk Paul Ngan

    IPC: G06F11/14

    CPC classification number: G06F11/1448 ,  G06F2201/84

    Abstract: Techniques are provided for volume group backup, volume group restore, and volume group garbage collection for volume groups backed up to an object store. A volume group workflow is implemented to orchestrate individual consistent volume workflows that are separately and individually implemented by nodes hosting constituent volumes of a volume group. The volume group workflow and the individual consistent volume workflows are performed to back up the volume group to the object store, restore a volume group backup from the object store to a restore destination, and/or perform garbage collection on slots of objects storing data unique to a volume group backup to delete.

    PERFORMING VARIOUS OPERATIONS AT THE GRANULARITY OF A CONSISTENCY GROUP WITHIN A CROSS-SITE STORAGE SOLUTION
    3.
    发明公开
    PERFORMING VARIOUS OPERATIONS AT THE GRANULARITY OF A CONSISTENCY GROUP WITHIN A CROSS-SITE STORAGE SOLUTION 审中-公开

    公开(公告)号：US20230289076A1

    公开(公告)日：2023-09-14

    申请号：US18320788

    申请日：2023-05-19

    Applicant: NetApp, Inc.

    Inventor： Murali Subramanian ,  Akhil Kaushik ,  Anoop Vijayan ,  Omprakash Khandelwal ,  Arun Kumar Selvam

    IPC: G06F3/06

    CPC classification number: G06F3/0631 ,  G06F3/0604 ,  G06F3/067

    Abstract: Systems and methods are described for efficiently performing various operations at the granularity of a consistency group (CG) within a cross-site storage solution. An example of one of the various operations includes an independent and parallel resynchronization approach that independently brings individual volumes of a CG to a steady state of in-synchronization (InSync), thereby contributing to scalability of CGs by supporting CGs having a large number of member volumes without requiring a change to the resynchronization process. Another example includes preserving dependent write-order consistency when a remote mirror copy goes out-of-synchronization (OOS) for any reason by driving all member volumes OOS responsive to any member volume becoming OOS. Yet another example includes independent creation of snapshots by member volumes to support efficient and on-demand creation by an application of a common snapshots of all or a subset of peered member volumes of a CG with which the application is associated.

    RESYNCHRONIZATION OF INDIVIDUAL VOLUMES OF A CONSISTENCY GROUP (CG) WITHIN A CROSS-SITE STORAGE SOLUTION WHILE MAINTAINING SYNCHRONIZATION OF OTHER VOLUMES OF THE CG
    4.
    发明申请
    RESYNCHRONIZATION OF INDIVIDUAL VOLUMES OF A CONSISTENCY GROUP (CG) WITHIN A CROSS-SITE STORAGE SOLUTION WHILE MAINTAINING SYNCHRONIZATION OF OTHER VOLUMES OF THE CG 有权

    公开(公告)号：US20230110776A1

    公开(公告)日：2023-04-13

    申请号：US18053561

    申请日：2022-11-08

    Applicant: NetApp, Inc.

    Inventor： Murali Subramanian ,  Akhil Kaushik ,  Anoop Vijayan ,  Arun Kumar Selvam

    IPC: G06F3/06

    Abstract: Systems and methods are provided for bringing a volume of a consistency group (CG) into an in-synchronization (InSync) state while other volumes of the CG remain in the InSync state. According to an example, in order to support recovery from disruptive events in a manner that ensures a zero recovery point objective (RPO) guarantee and insulates an application making use of the CG from adverse impacts, responsive to a triggering event, a Fast Resync process may first be attempted to promptly bring an affected volume back into an in-synchronization (InSync) state from an out of synchronization (OOS) state while allowing other members of the CG to remain in the InSync state. Should the Fast resync process be unsuccessful in bringing the volume back into the InSync state within a predetermined or configurable time threshold, then a second type of resynchronization process may be employed at the CG level.

    RESYNCHRONIZATION OF INDIVIDUAL VOLUMES OF A CONSISTENCY GROUP (CG) WITHIN A CROSS-SITE STORAGE SOLUTION WHILE MAINTAINING SYNCHRONIZATION OF OTHER VOLUMES OF THE CG
    5.
    发明申请
    RESYNCHRONIZATION OF INDIVIDUAL VOLUMES OF A CONSISTENCY GROUP (CG) WITHIN A CROSS-SITE STORAGE SOLUTION WHILE MAINTAINING SYNCHRONIZATION OF OTHER VOLUMES OF THE CG 有权

    公开(公告)号：US20240393973A1

    公开(公告)日：2024-11-28

    申请号：US18673753

    申请日：2024-05-24

    Applicant: NetApp, Inc.

    Inventor： Murali Subramanian ,  Akhil Kaushik ,  Anoop Vijayan ,  Arun Kumar Selvam

    IPC: G06F3/06

    Abstract: Systems and methods are provided for bringing a volume of a consistency group (CG) into an in-synchronization (InSync) state while other volumes of the CG remain in the InSync state. According to an example, in order to support recovery from disruptive events in a manner that ensures a zero recovery point objective (RPO) guarantee and insulates an application making use of the CG from adverse impacts, responsive to a triggering event, a Fast Resync process may first be attempted to promptly bring an affected volume back into an in-synchronization (InSync) state from an out of synchronization (OOS) state while allowing other members of the CG to remain in the InSync state. Should the Fast resync process be unsuccessful in bringing the volume back into the InSync state within a predetermined or configurable time threshold, then a second type of resynchronization process may be employed at the CG level.

    Resynchronization of individual volumes of a consistency group (CG) within a cross-site storage solution while maintaining synchronization of other volumes of the CG
    7.
    发明授权
    Resynchronization of individual volumes of a consistency group (CG) within a cross-site storage solution while maintaining synchronization of other volumes of the CG 有权

    公开(公告)号：US11537314B1

    公开(公告)日：2022-12-27

    申请号：US17495990

    申请日：2021-10-07

    Applicant: NetApp, Inc.

    Inventor： Murali Subramanian ,  Akhil Kaushik ,  Anoop Vijayan ,  Arun Kumar Selvam

    IPC: G06F3/06

    Abstract: Systems and methods are provided for bringing a volume of a consistency group (CG) into an in-synchronization (InSync) state while other volumes of the CG remain in the InSync state. According to an example, in order to support recovery from disruptive events in a manner that ensures a zero recovery point objective (RPO) guarantee and insulates an application making use of the CG from adverse impacts, responsive to a triggering event, a Fast Resync process may first be attempted to promptly bring an affected volume back into an in-synchronization (InSync) state from an out of synchronization (OOS) state while allowing other members of the CG to remain in the InSync state. Should the Fast resync process be unsuccessful in bringing the volume back into the InSync state within a predetermined or configurable time threshold, then a second type of resynchronization process may be employed at the CG level.

    Volume group restore from remote object store
    8.
    发明授权
    Volume group restore from remote object store 有权

    公开(公告)号：US12229010B2

    公开(公告)日：2025-02-18

    申请号：US17730899

    申请日：2022-04-27

    Applicant: NetApp Inc.

    Inventor： Rakesh Bhargava M. R. ,  Murali Subramanian ,  Tijin George ,  Ching-Yuk Paul Ngan

    IPC: G06F11/14

    Abstract: Techniques are provided for volume group backup, volume group restore, and volume group garbage collection for volume groups backed up to an object store. A volume group workflow is implemented to orchestrate individual consistent volume workflows that are separately and individually implemented by nodes hosting constituent volumes of a volume group. The volume group workflow and the individual consistent volume workflows are performed to back up the volume group to the object store, restore a volume group backup from the object store to a restore destination, and/or perform garbage collection on slots of objects storing data unique to a volume group backup to delete.

    FACILITATING IMMEDIATE PERFORMANCE OF VOLUME RESYNCHRONIZATION WITH THE USE OF PASSIVE CACHE ENTRIES
    9.
    发明申请
    FACILITATING IMMEDIATE PERFORMANCE OF VOLUME RESYNCHRONIZATION WITH THE USE OF PASSIVE CACHE ENTRIES 有权

    公开(公告)号：US20240385995A1

    公开(公告)日：2024-11-21

    申请号：US18787654

    申请日：2024-07-29

    Applicant: NetApp, Inc.

    Inventor： Murali Subramanian ,  Sohan Shetty ,  Rakesh Bhargava ,  Akhil Kaushik

    IPC: G06F16/178 ,  G06F3/06 ,  G06F11/20 ,  G06F16/172 ,  G06F16/23

    Abstract: Systems and methods for reducing delays between the time at which a need for a resynchronization of data replication between a volume of a local CG and its peer volume of a remote CG is detected and the time at which the resynchronization is triggered (Reseed Time Period) are provided. According to an example, information indicative of the direction of data replication between the volume and the peer volume is maintained within a cache of a node. Responsive to a disruptive operation (e.g., relocation of the volume from a first node to a second node), the Reseed Time Period is lessened by proactively adding a passive cache entry to a cache within the second node at the time the CG relationship is created when the second node represents an HA partner of the first node and prior to the volume coming online when the second node represents a non-HA partner.

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