公开(公告)号：US20230033584A1

公开(公告)日：2023-02-02

申请号：US17387807

申请日：2021-07-28

Applicant: NETAPP, INC.

Inventor： Sumith Makam ,  Rahul Thapliyal ,  Kartik R ,  Roopesh Chuggani ,  Abhisar Lnu ,  Maria Josephine Priyanka S

IPC: G06F12/0891

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.

公开(公告)号：US11768775B2

公开(公告)日：2023-09-26

申请号：US17387807

申请日：2021-07-28

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.

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.

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.

公开(公告)号：US11544011B1

公开(公告)日：2023-01-03

申请号：US17387792

申请日：2021-07-28

Applicant: NETAPP, INC.

Inventor： Sumith Makam ,  Rahul Thapliyal ,  Kartik R ,  Roopesh Chuggani ,  Abhisar Lnu ,  Maria Josephine Priyanka S

IPC: G06F3/06

Abstract: Methods and systems for a networked storage system are provided. One method includes: receiving, by a first storage node, a request to modify data stored using a logical storage object presented by the first storage node, the first storage node communicating with a second storage node configured as a failover partner of the first storage node; transmitting, by the first storage node, an invalidation request to the second storage node to invalidate an entry in a storage location cache of the second storage node, the entry indicating a storage location where data is stored by the first storage node, before modification; and responding, by the first storage node, to the request after modifying the data and upon receiving a response from the second storage node indicating successful invalidation of the entry.

公开(公告)号：US11500591B1

公开(公告)日：2022-11-15

申请号：US17387815

申请日：2021-07-28

Applicant: NETAPP, INC.

Inventor： Sumith Makam ,  Rahul Thapliyal ,  Kartik R ,  Roopesh Chuggani ,  Abhisar Lnu ,  Maria Josephine Priyanka S

IPC: G06F3/06 ,  G06F12/0891

Abstract: Methods and systems for a networked storage system are provided. One method includes transmitting, by a first node, an invalidation request to a second node to invalidate an entry of a storage location cache of the second node, the entry indicating a storage location to write data in response to a write request received by the first node; updating, by the first node, a memory structure at the first node for sending a heartbeat message to disable use of the storage location cache by the second node; and responding, by the first node, to the write request, after a response to disable the use of the storage location cache is received from the second node or a certain duration, T1, has elapsed since the heartbeat message was sent to the second node and no response was received from the second node.

公开(公告)号：US11481326B1

公开(公告)日：2022-10-25

申请号：US17387776

申请日：2021-07-28

Applicant: NETAPP, INC.

Inventor： Sumith Makam ,  Rahul Thapliyal ,  Kartik R ,  Roopesh Chuggani ,  Abhisar Lnu ,  Maria Josephine Priyanka S

IPC: G06F12/0813

Abstract: Methods and systems for a networked storage system are provided. One method includes: utilizing, by a first node, a storage location cache to determine if an entry associated with a first read request for data stored using a logical object owned by a second node configured as a failover partner node of the first node exists; transmitting, by the first node, the first read request to the second node; receiving, by the first node, a response to the first read request from the second node with requested data; inserting, by the first node, an entry in the storage location cache indicating the storage location information for the data; and utilizing, by the first node, the inserted entry in the storage location cache to determine storage location of data requested by a second read request received by the first node.