公开(公告)号：US11899620B2

公开(公告)日：2024-02-13

申请号：US16296427

申请日：2019-03-08

Applicant: NetApp Inc.

Inventor： Tijin George ,  Jagavar Nehra ,  Roopesh Chuggani ,  Dnyaneshwar Nagorao Pawar ,  Atul Ramesh Pandit ,  Kiyoshi James Komatsu

IPC: G06F16/11 ,  G06F16/907 ,  G06F16/9035 ,  G06F16/13 ,  G06F16/901

CPC classification number: G06F16/128 ,  G06F16/13 ,  G06F16/902 ,  G06F16/907 ,  G06F16/9035

Abstract: Techniques are provided for managing objects within an object store. An object is maintained within an object store. In an embodiment, a rule is enforced for the object that in-use slots of the object are non-modifiable and unused slots of the object are modifiable. Metadata of additional information for a slot within the object is attached to the object header. A first application allowed to access user data within the slot is provided access to the user data without being provided access to the metadata. A second application allowed access to the user data and the additional information is provided with access to the user data and the metadata for identifying a location of additional information within the object.

公开(公告)号：US11797477B2

公开(公告)日：2023-10-24

申请号：US17498368

申请日：2021-10-11

Applicant: NetApp Inc.

Inventor： Tijin George ,  Jagavar Nehra ,  Roopesh Chuggani ,  Dnyaneshwar Nagorao Pawar ,  Atul Ramesh Pandit ,  Kiyoshi James Komatsu

IPC: G06F16/11 ,  G06F16/907 ,  G06F16/14

CPC classification number: G06F16/128 ,  G06F16/14 ,  G06F16/907

Abstract: Techniques are provided for managing objects within an object store. An object is maintained within an object store. The object comprises a plurality of slots. Each slot is used to store a unit of data accessible to applications hosted by remote computing devices. The object comprises an object header used to store metadata for each slot. A determination is made that the object is a fragmented object comprising an in-use slot of in-use data and a freed slot from which data was freed. The object is compacted to retain in-use data and exclude freed data as a rewritten object.

公开(公告)号：US20230137443A1

公开(公告)日：2023-05-04

申请号：US17729885

申请日：2022-04-26

Applicant: NETAPP, INC.

Inventor： Atul Ramesh Pandit ,  Kalaivani Arumugham ,  Akhil Kaushik ,  Ching-Yuk Paul Ngan ,  Kazunobu Nishime ,  Rakesh Bhargava M R ,  William R. Taylor

IPC: G06F9/455 ,  G06F9/50

Abstract: Methods and systems for Vserver migration are provided. One method includes executing a transfer phase of a migrate operation for migrating a Vserver of a source cluster to a destination cluster, using asynchronous baseline transfer to transfer a plurality of source storage volumes configured in a consistency group (CG) for the migrate operation to a plurality of destination storage volumes of a destination cluster; updating a state of each of the plurality of source storage volumes to a sync state indicating completion of a pre-commit phase of the migrate operation to initiate a commit phase of the migrate operation; and generating a snapshot of the plurality of destination storage volumes for performing data integrity checks between data stored at the source cluster and migrated data at destination cluster, after completing a commit phase of the migrate operation.

公开(公告)号：US11630807B2

公开(公告)日：2023-04-18

申请号：US17321546

申请日：2021-05-17

Applicant: NetApp Inc.

Inventor： Tijin George ,  Jagavar Nehra ,  Roopesh Chuggani ,  Dnyaneshwar Nagorao Pawar ,  Atul Ramesh Pandit ,  Kiyoshi James Komatsu

IPC: G06F16/178 ,  G06F16/11 ,  G06F16/16

Abstract: Techniques are provided for managing objects within an object store. An object is maintained within an object store. The object is used to store data of a snapshot of a file system hosted by a remote computing device. A determination is made that the snapshot was deleted by the remote computing device. Bitmaps describing objects within the object store that are related to snapshots of the file system are evaluated to determine that the object is unique to the deleted snapshot. The object is freed from storage within the object store.

公开(公告)号：US20220138153A1

公开(公告)日：2022-05-05

申请号：US17242448

申请日：2021-04-28

Applicant: NetApp Inc.

Inventor： Sharankumar Yelheri ,  Atul Ramesh Pandit ,  Tijin George ,  Kiran Nenmeli Srinivasan ,  Jeffrey David Prem

IPC: G06F16/11 ,  G06F11/14

Abstract: Techniques are provided for on-demand creation and/or utilization of containers and/or serverless threads for hosting data connector components. The data connector components can be used to perform integrity checking, anomaly detection, and file system metadata analysis associated with objects stored within an object store. The data connector components may be configured to execute machine learning functionality to perform operations and tasks. The data connector components can perform full scans or incremental scans. The data connector components may be stateless, and thus may be offlined, upgraded, onlined, and/or have tasks transferred between data connector components. Results of operations performed by the data connector components upon base objects may be stored within sibling objects.

公开(公告)号：US20220138152A1

公开(公告)日：2022-05-05

申请号：US17242429

申请日：2021-04-28

Applicant: NetApp Inc.

Inventor： Sharankumar Yelheri ,  Atul Ramesh Pandit ,  Tijin George

IPC: G06F16/11

Abstract: Techniques are provided for on-demand creation and/or utilization of containers and/or serverless threads for hosting data connector components. The data connector components can be used to perform integrity checking, anomaly detection, and file system metadata analysis associated with objects stored within an object store. The data connector components may be configured to execute machine learning functionality to perform operations and tasks. The data connector components can perform full scans or incremental scans. The data connector components may be stateless, and thus may be offlined, upgraded, onlined, and/or have tasks transferred between data connector components. Results of operations performed by the data connector components upon base objects may be stored within sibling objects.

公开(公告)号：US20200285614A1

公开(公告)日：2020-09-10

申请号：US16401294

申请日：2019-05-02

Applicant: NetApp Inc.

Inventor： Tijin George ,  Jagavar Nehra ,  Roopesh Chuggani ,  Dnyaneshwar Nagorao Pawar ,  Atul Ramesh Pandit ,  Anil Kumar Ponnapur ,  Jose Mathew ,  Sriram Venketaraman

IPC: G06F16/14 ,  G06F16/11 ,  G06F16/182 ,  G06F11/14

Abstract: Techniques are provided for an object file system for an object store. Data, maintained by a computing device, is stored into slots of an object. The data within the slots of the object is represented as a data structure comprising a plurality of nodes comprising cloud block numbers used to identify the object and particular slots of the object. A mapping metafile is maintained to map block numbers used to store the data by the computing device to cloud block numbers of nodes representing portion of the data stored within slots of the object. The object is stored into the object store, and the mapping metafile and the data structure are used to provide access through the object file system to portions of data within the object.

公开(公告)号：US20200285613A1

公开(公告)日：2020-09-10

申请号：US16296417

申请日：2019-03-08

Applicant: NetApp Inc.

Inventor： Tijin George ,  Jagavar Nehra ,  Roopesh Chuggani ,  Dnyaneshwar Nagorao Pawar ,  Atul Ramesh Pandit ,  Anil Kumar Ponnapur ,  Jose Mathew ,  Sriram Venketaraman

IPC: G06F16/14 ,  G06F11/14 ,  G06F16/11 ,  G06F16/182

Abstract: Techniques are provided for an object file system for an object store. Data, maintained by a computing device, is stored into slots of an object. The data within the slots of the object is represented as a data structure comprising a plurality of nodes comprising cloud block numbers used to identify the object and particular slots of the object. A mapping metafile is maintained to map block numbers used to store the data by the computing device to cloud block numbers of nodes representing portion of the data stored within slots of the object. The object is stored into the object store, and the mapping metafile and the data structure are used to provide access through the object file system to portions of data within the object.

公开(公告)号：US20200285612A1

公开(公告)日：2020-09-10

申请号：US16296453

申请日：2019-03-08

Applicant: NetApp Inc.

Inventor： Tijin George ,  Jagavar Nehra ,  Roopesh Chuggani ,  Dnyaneshwar Nagorao Pawar ,  Atul Ramesh Pandit ,  Kiyoshi James Komatsu

IPC: G06F16/11 ,  G06F16/14 ,  G06F16/907

Abstract: Techniques are provided for managing objects within an object store. An object is maintained within an object store. The object comprises a plurality of slots. Each slot is used to store a unit of data accessible to applications hosted by remote computing devices. The object comprises an object header used to store metadata for each slot. A determination is made that the object is a fragmented object comprising an in-use slot of in-use data and a freed slot from which data was freed. The object is compacted to retain in-use data and exclude freed data as a rewritten object.

公开(公告)号：US20180276090A1

公开(公告)日：2018-09-27

申请号：US15995607

申请日：2018-06-01

Applicant: NetApp Inc.

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

IPC: G06F11/20 ,  H04L29/08

CPC classification number: G06F11/2069 ,  G06F11/2071 ,  G06F11/2092 ,  G06F2201/805 ,  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.