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.

公开(公告)号：US11720525B2

公开(公告)日：2023-08-08

申请号：US17389395

申请日：2021-07-30

Applicant: NetApp Inc.

Inventor： Atul Ramesh Pandit ,  Tijin George ,  Avanthi Rajan ,  Anitha Ganesha

IPC: G06F16/11 ,  G06F11/14

CPC classification number: G06F16/128 ,  G06F11/1458

Abstract: Techniques are provided for tiering snapshots to archival storage in remote object stores. A restore time metric, indicating that objects comprising snapshot data of snapshots created within a threshold timespan are to be available within a storage tier of a remote object store for performing restore operations, may be identified. A scanner may be executed to evaluate snapshots using the restore time metric to identify a set of candidate snapshots for archival from the storage tier to an archival storage tier of the remote object store. For each candidate snapshot within the set of candidate snapshots, the scanner may evaluate metadata associated with the candidate snapshot to identity one or more objects eligible for archival from the storage tier to the archival storage tier, and may archive the one or more objects from the storage tier to the archival storage tier.

公开(公告)号：US11625306B2

公开(公告)日：2023-04-11

申请号：US17130243

申请日：2020-12-22

Applicant: NetApp Inc.

Inventor： Sharankumar Yelheri ,  Atul Ramesh Pandit ,  Tijin George

IPC: G06F12/00 ,  G06F11/14 ,  G06F16/11

Abstract: Techniques are provided for implementing data requests associated with objects of an object store. A data connector component may be instantiated as a container for processing data requests associated with backup data stored within objects of an object store. The data connector component may evaluate the object store to identify snapshots stored as the backup data within the objects of the object store according to an object format. The data connector component may provide a client device with access to backup data of the snapshots.

公开(公告)号：US20220138051A1

公开(公告)日：2022-05-05

申请号：US17130243

申请日：2020-12-22

Applicant: NetApp Inc.

Inventor： Sharankumar Yelheri ,  Atul Ramesh Pandit ,  Tijin George

IPC: G06F11/14

Abstract: Techniques are provided for implementing data requests associated with objects of an object store. A data connector component may be instantiated as a container for processing data requests associated with backup data stored within objects of an object store. The data connector component may evaluate the object store to identify snapshots stored as the backup data within the objects of the object store according to an object format. The data connector component may provide a client device with access to backup data of the snapshots.

公开(公告)号：US20220138048A1

公开(公告)日：2022-05-05

申请号：US17155138

申请日：2021-01-22

Applicant: NetApp Inc.

Inventor： Sharankumar Yelheri ,  Sanhita Praveen Dhavale ,  Atul Ramesh Pandit ,  Ravindra Ramachandraiah Kuramkote ,  Tijin George ,  Kiyoshi James Komatsu

IPC: G06F11/14 ,  G06F16/27 ,  G06F16/22 ,  G06F9/54

Abstract: Techniques are provided for implementing management requests associated with objects of an object store. A data connector component may be instantiated as a container for processing management requests associated with backup data stored within an object store as an object according to an object format. A management request associated with the backup data may be received by the data connector component. A structure associated with the object having the object format may be traversed by the data connector component to identify the backup data. The data connector component may be implemented upon the backup data stored within the object.

公开(公告)号：US11249671B2

公开(公告)日：2022-02-15

申请号：US15581730

申请日：2017-04-28

Applicant: NetApp, Inc.

Inventor： Tijin George ,  Jose Mathew ,  Harsha Vardhan Reddy Perannagari

IPC: G06F3/06 ,  G06F12/0888 ,  G06F12/0868 ,  G06F11/20

Abstract: Methods, non-transitory computer readable media, and computing devices that receive data from a primary storage node. The data is stored in a primary volume within a primary composite aggregate hosted by the primary storage node. A determination is made when the data is tagged to indicate that the data is stored in the primary volume on a remote data storage device of the primary composite aggregate. The data is stored on another remote data storage device without storing the data in a local data storage device, when the determining indicates that the data is tagged to indicate that the data is stored in the primary volume on a remote data storage device of the primary composite aggregate. Accordingly, this technology allows data placement to remain consistent across primary and secondary volumes and facilitates efficient operation of secondary storage nodes by eliminating two-phase writes for data stored on cloud storage devices.

公开(公告)号：US20220027314A1

公开(公告)日：2022-01-27

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

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：US11144498B2

公开(公告)日：2021-10-12

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 ,  G06F16/907 ,  G06F16/14

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：US20200285616A1

公开(公告)日：2020-09-10

申请号：US16296442

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

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：US10031682B1

公开(公告)日：2018-07-24

申请号：US15581742

申请日：2017-04-28

Applicant: NetApp, Inc.

Inventor： Tijin George ,  Cheryl Thompson ,  Ananthan Subramanian

IPC: G06F3/06

Abstract: A method, non-transitory computer readable medium, and computing device that receives metadata for a block associated with an object from a source storage node. The metadata comprises a source object identifier and the object is associated with a source volume of a source aggregate owned by the source storage node. A determination is made when another block associated with the object has been previously received. A destination object identifier is obtained based on the source object identifier, when the determining indicates that the other block associated with the object has been previously received. A new aggregate block number is assigned to the block based on the destination object identifier and another portion of the metadata. Ownership of the source volume is transferred upon receipt of an indication of a cutover from the source storage node in order to migrate the source volume to a destination volume of a destination aggregate.