公开(公告)号：US11726696B2

公开(公告)日：2023-08-15

申请号：US17587710

申请日：2022-01-28

Applicant: NetApp Inc.

Inventor： Jagavar Nehra ,  Roopesh Chuggani ,  Abhisar ,  Sumith Makam

IPC: G06F3/06 ,  G06F11/14

CPC classification number: G06F3/065 ,  G06F3/067 ,  G06F3/0619 ,  G06F11/1469 ,  G06F2201/84

Abstract: Techniques are provided for caching data during an on-demand restore using a cloud block map. A client may be provided with access to an on-demand volume during a restore process that copies backup data from a snapshot within a remote object store to the on-demand volume stored within local storage. In response to receiving a request from the client for a block of the backup data not yet restored from the snapshot to the on-demand volume, the block may be retrieved from the snapshot in the remote object store. The block may be cached within a cloud block map stored within the local storage as a cached block. The client may be provided with access to the cached block.

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：US20240231672A1

公开(公告)日：2024-07-11

申请号：US18614986

申请日：2024-03-25

Applicant: NetApp Inc.

Inventor： Jagavar Nehra ,  Roopesh Chuggani ,  Abhisar ,  Sumith Makam

IPC: G06F3/06 ,  G06F11/14

CPC classification number: G06F3/065 ,  G06F3/0619 ,  G06F3/067 ,  G06F11/1469 ,  G06F2201/84

Abstract: Techniques are provided for caching data during an on-demand restore using a cloud block map. A client may be provided with access to an on-demand volume during a restore process that copies backup data from a snapshot within a remote object store to the on-demand volume stored within local storage. In response to receiving a request from the client for a block of the backup data not yet restored from the snapshot to the on-demand volume, the block may be retrieved from the snapshot in the remote object store. The block may be cached within a cloud block map stored within the local storage as a cached block. The client may be provided with access to the cached block.

公开(公告)号：US20240143549A1

公开(公告)日：2024-05-02

申请号：US18406338

申请日：2024-01-08

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

CPC classification number: G06F16/148 ,  G06F11/1451 ,  G06F16/128 ,  G06F16/182 ,  G06F2201/80 ,  G06F2201/84

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：US11868312B2

公开(公告)日：2024-01-09

申请号：US17498263

申请日：2021-10-11

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

CPC classification number: G06F16/148 ,  G06F11/1451 ,  G06F16/128 ,  G06F16/182 ,  G06F2201/80 ,  G06F2201/84

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：US20230384964A1

公开(公告)日：2023-11-30

申请号：US18448245

申请日：2023-08-11

Applicant: NetApp Inc.

Inventor： Jagavar Nehra ,  Roopesh Chuggani ,  Abhisar ,  Sumith Makam

IPC: G06F3/06 ,  G06F11/14

CPC classification number: G06F3/065 ,  G06F3/067 ,  G06F3/0619 ,  G06F11/1469 ,  G06F2201/84

Abstract: Techniques are provided for caching data during an on-demand restore using a cloud block map. A client may be provided with access to an on-demand volume during a restore process that copies backup data from a snapshot within a remote object store to the on-demand volume stored within local storage. In response to receiving a request from the client for a block of the backup data not yet restored from the snapshot to the on-demand volume, the block may be retrieved from the snapshot in the remote object store. The block may be cached within a cloud block map stored within the local storage as a cached block. The client may be provided with access to the cached block.

公开(公告)号：US20230032522A1

公开(公告)日：2023-02-02

申请号：US17587710

申请日：2022-01-28

Applicant: NetApp Inc.

Inventor： Jagavar Nehra ,  Roopesh Chuggani ,  Abhisar ,  Sumith Makam

IPC: G06F3/06

Abstract: Techniques are provided for caching data during an on-demand restore using a cloud block map. A client may be provided with access to an on-demand volume during a restore process that copies backup data from a snapshot within a remote object store to the on-demand volume stored within local storage. In response to receiving a request from the client for a block of the backup data not yet restored from the snapshot to the on-demand volume, the block may be retrieved from the snapshot in the remote object store. The block may be cached within a cloud block map stored within the local storage as a cached block. The client may be provided with access to the cached block.

公开(公告)号：US11016943B2

公开(公告)日：2021-05-25

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 ,  G06F16/11 ,  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.