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公开(公告)号：US12056056B2
公开(公告)日：2024-08-06
申请号：US18222099
申请日：2023-07-14
Applicant: NETAPP, INC.
Inventor： Sumith Makam , Rahul Thapliyal , Kartik R , Roopesh Chuggani , Abhisar Lnu , Maria Josephine Priyanka S
IPC: G06F12/0891
CPC classification number: G06F12/0891 , G06F2212/1024
Abstract: Methods and systems for a networked storage system are provided. One method includes: generating, by a first node, a dummy entry in a storage location cache of the first node, the dummy entry associated with a read request received by the first node for data stored using a logical object owned by a second node; receiving, by the first node, an invalidation request to invalidate any storage location entry associated with the data, the invalidation request sent in response to the second node receiving a write request to modify the data; invalidating, by the first node, the dummy entry; receiving, by the first node, a response to the read request from the second node with the requested data; and replacing, by the first node, the dummy entry with a storage location entry and invalidating the storage location entry based on the invalidated dummy entry.
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公开(公告)号：US11816007B1
公开(公告)日：2023-11-14
申请号：US17824120
申请日：2022-05-25
Applicant: NetApp Inc.
Inventor： Dnyaneshwar Nagorao Pawar , Sumith Makam , Roopesh Chuggani , Tijin George
CPC classification number: G06F11/2025 , G06F11/1469 , G06F2201/84
Abstract: Techniques are provided for on-demand serverless disaster recovery. A primary node may host a primary volume. Snapshots of the primary volume may be backed up to an object store. In response to failure, a secondary node and/or an on-demand volume may be created on-demand. The secondary node may provide clients with failover access to the on-demand volume while a restore process restores a snapshot of the primary volume to the on-demand volume. In some embodiments, there was no secondary node and/or on-demand volume while the primary node was operational. This conserves computing resources that would be wasted by otherwise hosting the secondary node and/or on-demand volume while clients were able to access the primary volume through the primary node. Modifications directed to the on-demand volume are incrementally backed up to the object store for subsequently restoring the primary volume after recovery.
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13.发明公开公开(公告)号：US20230359564A1
公开(公告)日：2023-11-09
申请号：US18222099
申请日：2023-07-14
Applicant: NETAPP, INC.
Inventor： Sumith Makam , Rahul Thapliyal , Kartik R , Roopesh Chuggani , Abhisar Lnu , Maria Josephine Priyanka S
IPC: G06F12/0891
CPC classification number: G06F12/0891 , G06F2212/1024
Abstract: Methods and systems for a networked storage system are provided. One method includes: generating, by a first node, a dummy entry in a storage location cache of the first node, the dummy entry associated with a read request received by the first node for data stored using a logical object owned by a second node; receiving, by the first node, an invalidation request to invalidate any storage location entry associated with the data, the invalidation request sent in response to the second node receiving a write request to modify the data; invalidating, by the first node, the dummy entry; receiving, by the first node, a response to the read request from the second node with the requested data; and replacing, by the first node, the dummy entry with a storage location entry and invalidating the storage location entry based on the invalidated dummy entry.
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公开(公告)号：US20230029795A1
公开(公告)日：2023-02-02
申请号：US17587727
申请日：2022-01-28
Applicant: NetApp Inc.
Inventor： Jagavar Nehra , Roopesh Chuggani , Abhisar , Sumith Makam
IPC: G06F11/14
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.
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公开(公告)号：US20220321142A1
公开(公告)日：2022-10-06
申请号：US17844339
申请日：2022-06-20
Applicant: NetApp Inc.
Inventor： Roopesh Chuggani , Rahul Thapliyal
Abstract: Techniques are provided for implementing additional compression for existing compressed data. Format information stored within a data block is evaluated to determine whether the data block is compressed or uncompressed. In response to the data block being compressed according to a first compression format, the data block is decompressed using the format information. The data block is compressed with one or more other data blocks to create compressed data having a second compression format different than the first compression format.
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Patent Agency Ranking
公开(公告)号：US20210409037A1
公开(公告)日：2021-12-30
申请号：US17027995
申请日：2020-09-22
Applicant: NetApp Inc.
Inventor： Roopesh Chuggani , Rahul Thapliyal
Abstract: Techniques are provided for implementing additional compression for existing compressed data. Format information stored within a data block is evaluated to determine whether the data block is compressed or uncompressed. In response to the data block being compressed according to a first compression format, the data block is decompressed using the format information. The data block is compressed with one or more other data blocks to create compressed data having a second compression format different than the first compression format.
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公开(公告)号：US20210271642A1
公开(公告)日：2021-09-02
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 , G06F16/16 , 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.
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18.发明申请公开(公告)号：US20250045168A1
公开(公告)日：2025-02-06
申请号：US18923440
申请日：2024-10-22
Applicant: NetApp, Inc.
Inventor： Sumith Makam , Roopesh Chuggani , Dnyaneshwar Pawar , Abhisar null
IPC: G06F11/14
Abstract: Systems and methods for preserving storage efficiency during restoration of data from the cloud are provided. In one embodiment, a CBMAP is maintained that maps cloud block numbers (CBNs) to respective corresponding block numbers of a volume of a data storage system in which previously restored data has been stored by a previously restored file. By making use of the CBMAP during the restoration process, storage of duplicate file data blocks on the volume may be avoided by sharing with a current file being restored a reference to the corresponding file data block previously stored on the volume and associated with the previously restored file. In addition to preserving storage efficiency, use of the CBMAP facilitates avoidance of repeated GET operations for data associated with CBNs previously retrieved from the cloud and stored to the volume, thereby reducing data access costs as well as latency of the restore operation.
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公开(公告)号：US12131050B2
公开(公告)日：2024-10-29
申请号：US18448245
申请日：2023-08-11
Applicant: NetApp Inc.
Inventor： Jagavar Nehra , Roopesh Chuggani , Abhisar , Sumith Makam
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.
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公开(公告)号：US12088327B2
公开(公告)日：2024-09-10
申请号：US18448218
申请日：2023-08-11
Applicant: NetApp Inc.
Inventor： Roopesh Chuggani , Rahul Thapliyal
CPC classification number: H03M7/6011 , G06F3/0608 , G06F3/064 , G06F3/067 , G06F3/0689 , H03M7/6005
Abstract: Techniques are provided for implementing additional compression for existing compressed data. Format information stored within a data block is evaluated to determine whether the data block is compressed or uncompressed. In response to the data block being compressed according to a first compression format, the data block is decompressed using the format information. The data block is compressed with one or more other data blocks to create compressed data having a second compression format different than the first compression format.
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