公开(公告)号：US20220398240A1

公开(公告)日：2022-12-15

申请号：US17892179

申请日：2022-08-22

Applicant: NetApp Inc.

Inventor： Vijay Mohan Deshmukh ,  Atul Ramesh Pandit ,  Pawan Saxena

IPC: G06F16/23 ,  G06F16/27 ,  G06F16/245

Abstract: Data is replicated on a backup node, where the granularity of the replication can be less than a full volume. A data consistency group comprising a subset of data for a volume is defined for a primary node. A set of differences for the data consistency group is sent to a backup node. The backup node creates change logs in response to receiving the set of differences. In response to receiving a request to access a file having data in the data consistency group, the backup node creates a clone of the file. The backup node determines whether an update to a data block of the file exists in the change logs. In response to determining that the update to the data block exists in the change logs, the backup node updates a copy of the data block for the cloned file with data in the change logs.

公开(公告)号：US20210232317A1

公开(公告)日：2021-07-29

申请号：US16774199

申请日：2020-01-28

Applicant: NetApp Inc.

Inventor： Ravindra Kuramkote ,  Kiyoshi James Komatsu ,  Ling na Zheng ,  Rachita Kothiyal ,  Michael Lee Federwisch ,  Vijay Mohan Deshmukh

IPC: G06F3/06

Abstract: To replicate a source LUN to a different storage system platform, a first storage system transmits a request to replicate a LUN along with attributes for the LUN to a second storage system. The second storage system maps the attributes to attributes used and understood by the platform of the second storage system. The second storage system then creates a destination LUN based on the mapped attributes. Since the destination LUN is created with similar attributes as the source LUN, the destination LUN can store the replicated data of the source LUN while still being accessed and recognized as a LUN by the second storage system. The second storage system also stores any proprietary attributes received from the first storage system so that the proprietary attributes can be supplied to the first storage system to recover the source LUN after a data loss event.

公开(公告)号：US12032847B2

公开(公告)日：2024-07-09

申请号：US17705426

申请日：2022-03-28

Applicant: NetApp Inc.

Inventor： Ravindra Kuramkote ,  Kiyoshi James Komatsu ,  Ling Na Zheng ,  Rachita Kothiyal ,  Michael Lee Federwisch ,  Vijay Mohan Deshmukh

IPC: G06F3/06

CPC classification number: G06F3/065 ,  G06F3/0614 ,  G06F3/0653 ,  G06F3/0665 ,  G06F3/067 ,  G06F3/0683

Abstract: To replicate a source LUN to a different storage system platform, a first storage system transmits a request to replicate a LUN along with attributes for the LUN to a second storage system. The second storage system maps the attributes to attributes used and understood by the platform of the second storage system. The second storage system then creates a destination LUN based on the mapped attributes. Since the destination LUN is created with similar attributes as the source LUN, the destination LUN can store the replicated data of the source LUN while still being accessed and recognized as a LUN by the second storage system. The second storage system also stores any proprietary attributes received from the first storage system so that the proprietary attributes can be supplied to the first storage system to recover the source LUN after a data loss event.

公开(公告)号：US11288003B2

公开(公告)日：2022-03-29

申请号：US16774199

申请日：2020-01-28

Applicant: NetApp Inc.

Inventor： Ravindra Kuramkote ,  Kiyoshi James Komatsu ,  Ling Na Zheng ,  Rachita Kothiyal ,  Michael Lee Federwisch ,  Vijay Mohan Deshmukh

IPC: G06F3/06

Abstract: To replicate a source LUN to a different storage system platform, a first storage system transmits a request to replicate a LUN along with attributes for the LUN to a second storage system. The second storage system maps the attributes to attributes used and understood by the platform of the second storage system. The second storage system then creates a destination LUN based on the mapped attributes. Since the destination LUN is created with similar attributes as the source LUN, the destination LUN can store the replicated data of the source LUN while still being accessed and recognized as a LUN by the second storage system. The second storage system also stores any proprietary attributes received from the first storage system so that the proprietary attributes can be supplied to the first storage system to recover the source LUN after a data loss event.

公开(公告)号：US20220214814A1

公开(公告)日：2022-07-07

申请号：US17705426

申请日：2022-03-28

Applicant: NetApp Inc.

Inventor： Ravindra Kuramkote ,  Kiyoshi James Komatsu ,  Ling Na Zheng ,  Rachita Kothiyal ,  Michael Lee Federwisch ,  Vijay Mohan Deshmukh

IPC: G06F3/06

Abstract: To replicate a source LUN to a different storage system platform, a first storage system transmits a request to replicate a LUN along with attributes for the LUN to a second storage system. The second storage system maps the attributes to attributes used and understood by the platform of the second storage system. The second storage system then creates a destination LUN based on the mapped attributes. Since the destination LUN is created with similar attributes as the source LUN, the destination LUN can store the replicated data of the source LUN while still being accessed and recognized as a LUN by the second storage system. The second storage system also stores any proprietary attributes received from the first storage system so that the proprietary attributes can be supplied to the first storage system to recover the source LUN after a data loss event.

公开(公告)号：US10587685B2

公开(公告)日：2020-03-10

申请号：US15582561

申请日：2017-04-28

Applicant: NetApp, Inc.

Inventor： Ravindra Kuramkote ,  Kiyoshi James Komatsu ,  Ling Na Zheng ,  Rachita Kothiyal ,  Michael Lee Federwisch ,  Vijay Mohan Deshmukh

IPC: G06F15/16 ,  H04L29/08

Abstract: To replicate a source LUN to a different storage system platform, a first storage system transmits a request to replicate a LUN along with attributes for the LUN to a second storage system. The second storage system maps the attributes to attributes used and understood by the platform of the second storage system. The second storage system then creates a destination LUN based on the mapped attributes. Since the destination LUN is created with similar attributes as the source LUN, the destination LUN can store the replicated data of the source LUN while still being accessed and recognized as a LUN by the second storage system. The second storage system also stores any proprietary attributes received from the first storage system so that the proprietary attributes can be supplied to the first storage system to recover the source LUN after a data loss event.

公开(公告)号：US20180316756A1

公开(公告)日：2018-11-01

申请号：US15582561

申请日：2017-04-28

Applicant: NetApp, Inc.

Inventor： Ravindra Kuramkote ,  Kiyoshi James Komatsu ,  Ling Na Zheng ,  Rachita Kothiyal ,  Michael Lee Federwisch ,  Vijay Mohan Deshmukh

IPC: H04L29/08

CPC classification number: H04L67/1095 ,  H04L67/1097

Abstract: To replicate a source LUN to a different storage system platform, a first storage system transmits a request to replicate a LUN along with attributes for the LUN to a second storage system. The second storage system maps the attributes to attributes used and understood by the platform of the second storage system. The second storage system then creates a destination LUN based on the mapped attributes. Since the destination LUN is created with similar attributes as the source LUN, the destination LUN can store the replicated data of the source LUN while still being accessed and recognized as a LUN by the second storage system. The second storage system also stores any proprietary attributes received from the first storage system so that the proprietary attributes can be supplied to the first storage system to recover the source LUN after a data loss event.

公开(公告)号：US20160306840A1

公开(公告)日：2016-10-20

申请号：US14689936

申请日：2015-04-17

Applicant: NETAPP, INC.

Inventor： Vijay Mohan Deshmukh ,  Atul Ramesh Pandit ,  Pawan Saxena

IPC: G06F17/30

Abstract: Data is replicated on a backup node, where the granularity of the replication can be less than a full volume. A data consistency group comprising a subset of data for a volume is defined for a primary node. A set of differences for the data consistency group is sent to a backup node. The backup node creates change logs in response to receiving the set of differences. In response to receiving a request to access a file having data in the data consistency group, the backup node creates a clone of the file. The backup node determines whether an update to a data block of the file exists in the change logs. In response to determining that the update to the data block exists in the change logs, the backup node updates a copy of the data block for the cloned file with data in the change logs.

Abstract translation: 数据在备份节点上复制，其中复制的粒度可以小于完整卷。 为主节点定义包括卷的数据子集的数据一致性组。 数据一致性组的一组差异被发送到备份节点。 备份节点创建更改日志以响应接收到一组差异。 响应于接收到访问具有数据一致性组中的数据的文件的请求，备份节点创建该文件的克隆。 备份节点确定在更改日志中是否存在对该文件的数据块的更新。 响应于确定更改日志中存在对数据块的更新，备份节点使用更改日志中的数据更新克隆文件的数据块的副本。

公开(公告)号：US20240193149A1

公开(公告)日：2024-06-13

申请号：US18502287

申请日：2023-11-06

Applicant: NetApp Inc.

Inventor： Vijay Mohan Deshmukh ,  Atul Ramesh Pandit ,  Pawan Saxena

IPC: G06F16/23 ,  G06F16/245 ,  G06F16/27

CPC classification number: G06F16/2358 ,  G06F16/245 ,  G06F16/27

Abstract: Data is replicated on a backup node, where the granularity of the replication can be less than a full volume. A data consistency group comprising a subset of data for a volume is defined for a primary node. A set of differences for the data consistency group is sent to a backup node. The backup node creates change logs in response to receiving the set of differences. In response to receiving a request to access a file having data in the data consistency group, the backup node creates a clone of the file. The backup node determines whether an update to a data block of the file exists in the change logs. In response to determining that the update to the data block exists in the change logs, the backup node updates a copy of the data block for the cloned file with data in the change logs.

公开(公告)号：US11809402B2

公开(公告)日：2023-11-07

申请号：US17892179

申请日：2022-08-22

Applicant: NetApp Inc.

Inventor： Vijay Mohan Deshmukh ,  Atul Ramesh Pandit ,  Pawan Saxena

IPC: G06F16/23 ,  G06F16/27 ,  G06F16/245

CPC classification number: G06F16/2358 ,  G06F16/245 ,  G06F16/27

Abstract: Data is replicated on a backup node, where the granularity of the replication can be less than a full volume. A data consistency group comprising a subset of data for a volume is defined for a primary node. A set of differences for the data consistency group is sent to a backup node. The backup node creates change logs in response to receiving the set of differences. In response to receiving a request to access a file having data in the data consistency group, the backup node creates a clone of the file. The backup node determines whether an update to a data block of the file exists in the change logs. In response to determining that the update to the data block exists in the change logs, the backup node updates a copy of the data block for the cloned file with data in the change logs.