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公开(公告)号：US20250053316A1
公开(公告)日：2025-02-13
申请号：US18810870
申请日：2024-08-21
Applicant: NetApp, Inc.
Inventor： Akhil Kaushik , Ripulkumar Hemantbhai Patel , Vrishali Dattatray Hajare , Andrew Eric Dunn , Rithin Kumar Shetty
Abstract: One or more techniques and/or computing devices are provided for resynchronization. For example, a request may be received to create pseudo snapshots of a first consistency group, hosted by a first storage controller, and a second consistency group, hosted by a second storage controller, having a synchronous replication relationship with the first consistency group. Incoming client write requests are logged within an intercept tracking log at the first storage controller. After a first drain without hold of incoming write requests is performed, a first pseudo common snapshot of the second consistency group is created. After a second drain without hold of incoming write operations is performed, a second pseudo common snapshot of the first consistency group and the intercept tracking log is created. The pseudo snapshots and the intercept tracking log (e.g., indicating a delta between the pseudo snapshots) are used to resynchronize the first and second consistency groups.
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公开(公告)号：US20200081633A1
公开(公告)日：2020-03-12
申请号：US16682099
申请日：2019-11-13
Applicant: NetApp Inc.
Inventor： Akhil Kaushik , Ripulkumar Hemantbhai Patel , Vrishali Dattatray Hajare , Andrew Eric Dunn , Rithin Kumar Shetty
Abstract: One or more techniques and/or computing devices are provided for resynchronization. For example, a request may be received to create pseudo snapshots of a first consistency group, hosted by a first storage controller, and a second consistency group, hosted by a second storage controller, having a synchronous replication relationship with the first consistency group. Incoming client write requests are logged within an intercept tracking log at the first storage controller. After a first drain without hold of incoming write requests is performed, a first pseudo common snapshot of the second consistency group is created. After a second drain without hold of incoming write operations is performed, a second pseudo common snapshot of the first consistency group and the intercept tracking log is created. The pseudo snapshots and the intercept tracking log (e.g., indicating a delta between the pseudo snapshots) are used to resynchronize the first and second consistency groups.
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公开(公告)号：US11144211B2
公开(公告)日：2021-10-12
申请号：US16682099
申请日：2019-11-13
Applicant: NetApp Inc.
Inventor： Akhil Kaushik , Ripulkumar Hemantbhai Patel , Vrishali Dattatray Hajare , Andrew Eric Dunn , Rithin Kumar Shetty
Abstract: One or more techniques and/or computing devices are provided for resynchronization. For example, a request may be received to create pseudo snapshots of a first consistency group, hosted by a first storage controller, and a second consistency group, hosted by a second storage controller, having a synchronous replication relationship with the first consistency group. Incoming client write requests are logged within an intercept tracking log at the first storage controller. After a first drain without hold of incoming write requests is performed, a first pseudo common snapshot of the second consistency group is created. After a second drain without hold of incoming write operations is performed, a second pseudo common snapshot of the first consistency group and the intercept tracking log is created. The pseudo snapshots and the intercept tracking log (e.g., indicating a delta between the pseudo snapshots) are used to resynchronize the first and second consistency groups.
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公开(公告)号：US20170185323A1
公开(公告)日：2017-06-29
申请号：US14980345
申请日：2015-12-28
Applicant: NetApp Inc.
Inventor： Akhil Kaushik , Ripulkumar Hemantbhai Patel , Vrishali Dattatray Hajare , Andrew Eric Dunn , Rithin Kumar Shetty
CPC classification number: G06F3/0619 , G06F3/065 , G06F3/0683 , G06F11/1451 , G06F11/1469 , G06F11/1471 , G06F11/2064 , G06F11/2076 , G06F11/2082 , G06F2201/805 , G06F2201/84
Abstract: One or more techniques and/or computing devices are provided for resynchronization. For example, a request may be received to create pseudo snapshots of a first consistency group, hosted by a first storage controller, and a second consistency group, hosted by a second storage controller, having a synchronous replication relationship with the first consistency group. Incoming client write requests are logged within an intercept tracking log at the first storage controller. After a first drain without hold of incoming write requests is performed, a first pseudo common snapshot of the second consistency group is created. After a second drain without hold of incoming write operations is performed, a second pseudo common snapshot of the first consistency group and the intercept tracking log is created. The pseudo snapshots and the intercept tracking log (e.g., indicating a delta between the pseudo snapshots) are used to resynchronize the first and second consistency groups.
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公开(公告)号：US12073091B2
公开(公告)日：2024-08-27
申请号：US18160371
申请日：2023-01-27
Applicant: NetApp Inc.
Inventor： Akhil Kaushik , Ripulkumar Hemantbhai Patel , Vrishali Dattatray Hajare , Andrew Eric Dunn , Rithin Kumar Shetty
CPC classification number: G06F3/0619 , G06F3/065 , G06F3/0683 , G06F11/1451 , G06F11/1469 , G06F11/20 , G06F2201/805 , G06F2201/84
Abstract: One or more techniques and/or computing devices are provided for resynchronization. For example, a request may be received to create pseudo snapshots of a first consistency group, hosted by a first storage controller, and a second consistency group, hosted by a second storage controller, having a synchronous replication relationship with the first consistency group. Incoming client write requests are logged within an intercept tracking log at the first storage controller. After a first drain without hold of incoming write requests is performed, a first pseudo common snapshot of the second consistency group is created. After a second drain without hold of incoming write operations is performed, a second pseudo common snapshot of the first consistency group and the intercept tracking log is created. The pseudo snapshots and the intercept tracking log (e.g., indicating a delta between the pseudo snapshots) are used to resynchronize the first and second consistency groups.
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Patent Agency Ranking
公开(公告)号：US20220027065A1
公开(公告)日：2022-01-27
申请号：US17498237
申请日：2021-10-11
Applicant: NetApp Inc.
Inventor： Akhil Kaushik , Ripulkumar Hemantbhai Patel , Vrishali Dattatray Hajare , Andrew Eric Dunn , Rithin Kumar Shetty
Abstract: One or more techniques and/or computing devices are provided for resynchronization. For example, a request may be received to create pseudo snapshots of a first consistency group, hosted by a first storage controller, and a second consistency group, hosted by a second storage controller, having a synchronous replication relationship with the first consistency group. Incoming client write requests are logged within an intercept tracking log at the first storage controller. After a first drain without hold of incoming write requests is performed, a first pseudo common snapshot of the second consistency group is created. After a second drain without hold of incoming write operations is performed, a second pseudo common snapshot of the first consistency group and the intercept tracking log is created. The pseudo snapshots and the intercept tracking log (e.g., indicating a delta between the pseudo snapshots) are used to resynchronize the first and second consistency groups.
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公开(公告)号：US20210191823A1
公开(公告)日：2021-06-24
申请号：US17194531
申请日：2021-03-08
Applicant: NetApp Inc.
Inventor： Vrishali Dattatray Hajare , Ripulkumar Hemantbhai Patel , Ching-Yuk Paul Ngan , Rithin Kumar Shetty
Abstract: One or more techniques and/or computing devices are provided for snapshot creation. For example, a request may be received to create a snapshot of a first storage object, hosted by a first storage controller, having a synchronous replication relationship with a second storage object hosted by a second storage controller. A coordinator workflow is initialized to issue a drain and hold request to a splitter. Responsive to an indication that the splitter has stopped processing and started queuing incoming write operations and has drained current write operations based upon the drain and hold request, snapshot creation requests are sent to the first storage controller and the second storage controller. Responsive to the first storage controller creating a first snapshot of the first storage object and the second storage controller creating a second snapshot of the second storage object, the splitter may be resumed to process write operations.
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公开(公告)号：US12265453B2
公开(公告)日：2025-04-01
申请号：US17194531
申请日：2021-03-08
Applicant: NetApp Inc.
Inventor： Vrishali Dattatray Hajare , Ripulkumar Hemantbhai Patel , Ching-Yuk Paul Ngan , Rithin Kumar Shetty
Abstract: One or more techniques and/or computing devices are provided for snapshot creation. For example, a request may be received to create a snapshot of a first storage object, hosted by a first storage controller, having a synchronous replication relationship with a second storage object hosted by a second storage controller. A coordinator workflow is initialized to issue a drain and hold request to a splitter. Responsive to an indication that the splitter has stopped processing and started queuing incoming write operations and has drained current write operations based upon the drain and hold request, snapshot creation requests are sent to the first storage controller and the second storage controller. Responsive to the first storage controller creating a first snapshot of the first storage object and the second storage controller creating a second snapshot of the second storage object, the splitter may be resumed to process write operations.
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公开(公告)号：US11567674B2
公开(公告)日：2023-01-31
申请号：US17498237
申请日：2021-10-11
Applicant: NetApp Inc.
Inventor： Akhil Kaushik , Ripulkumar Hemantbhai Patel , Vrishali Dattatray Hajare , Andrew Eric Dunn , Rithin Kumar Shetty
Abstract: One or more techniques and/or computing devices are provided for resynchronization. For example, a request may be received to create pseudo snapshots of a first consistency group, hosted by a first storage controller, and a second consistency group, hosted by a second storage controller, having a synchronous replication relationship with the first consistency group. Incoming client write requests are logged within an intercept tracking log at the first storage controller. After a first drain without hold of incoming write requests is performed, a first pseudo common snapshot of the second consistency group is created. After a second drain without hold of incoming write operations is performed, a second pseudo common snapshot of the first consistency group and the intercept tracking log is created. The pseudo snapshots and the intercept tracking log (e.g., indicating a delta between the pseudo snapshots) are used to resynchronize the first and second consistency groups.
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公开(公告)号：US09727262B2
公开(公告)日：2017-08-08
申请号：US14980345
申请日：2015-12-28
Applicant: NetApp Inc.
Inventor： Akhil Kaushik , Ripulkumar Hemantbhai Patel , Vrishali Dattatray Hajare , Andrew Eric Dunn , Rithin Kumar Shetty
CPC classification number: G06F3/0619 , G06F3/065 , G06F3/0683 , G06F11/1451 , G06F11/1469 , G06F11/1471 , G06F11/2064 , G06F11/2076 , G06F11/2082 , G06F2201/805 , G06F2201/84
Abstract: One or more techniques and/or computing devices are provided for resynchronization. For example, a request may be received to create pseudo snapshots of a first consistency group, hosted by a first storage controller, and a second consistency group, hosted by a second storage controller, having a synchronous replication relationship with the first consistency group. Incoming client write requests are logged within an intercept tracking log at the first storage controller. After a first drain without hold of incoming write requests is performed, a first pseudo common snapshot of the second consistency group is created. After a second drain without hold of incoming write operations is performed, a second pseudo common snapshot of the first consistency group and the intercept tracking log is created. The pseudo snapshots and the intercept tracking log (e.g., indicating a delta between the pseudo snapshots) are used to resynchronize the first and second consistency groups.
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