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1. 发明申请

US20230070038A1 VOLUME PLACEMENT FAILURE ISOLATION AND REPORTING 有权
公开(公告)号：US20230070038A1
公开(公告)日：2023-03-09
申请号：US17465445
申请日：2021-09-02
申请人： NetApp, Inc.
发明人： Wesley R. Witte , Youyuan Wu
IPC分类号： G06F11/14 , G06F16/2453 , G06F16/22 , G06F11/07
摘要： Systems, methods, and machine-readable media are disclosed for isolating and reporting a volume placement error for a request to place a volume on a storage platform. A volume placement service requests information from a database using an optimized database query to determine an optimal location to place a new volume. The database returns no results. The volume placement service deconstructs the optimized database query to extract a plurality of queries. The volume placement service iterates over the plurality queries, combining queries in each iteration, to determine a cause for the database to return no results. The volume placement service determines based on the results of each iterative database request a cause the database to return an empty result. The volume placement service provides an indication of the cause for returning an empty result.

2. 发明授权

US11388235B1 Decoupling volume deployment requirements and code implementation 有权
公开(公告)号：US11388235B1
公开(公告)日：2022-07-12
申请号：US17244521
申请日：2021-04-29
申请人： NetApp, Inc.
发明人： Priya Thiruvasakan , Wesley R. Witte , Youyuan Wu , Abhishek Maurya , Mohammed Haroon Shareef , Sachin Pandit , Gyanendra Pradhan , Sundeep Singh
IPC分类号： H04L29/08 , H04L67/1097 , H04L67/60 , H04L67/51
摘要： Systems, methods, and machine-readable media are disclosed for collecting, maintaining, and retrieving use and limit data for connected resources, as well as determining an optimal location for creating a new volume (or volumes) on a storage platform and placing the volume at the determined location. A resource tracker collects resource use and/or limits data and stores it in a database. A volume placement service receives a volume deployment specification having constraints for creating a new volume. The volume placement service retrieves the data from the database. The volume placement service identifies an optimal location for the volume based at least in part on given constraints from the specification and the resource usage data. The system places the requested volume at the determined location.

3. 发明申请

US20220283722A1 Volume Placement Based on Resource Use and Scoring Functions 有权
公开(公告)号：US20220283722A1
公开(公告)日：2022-09-08
申请号：US17244492
申请日：2021-04-29
申请人： NetApp, Inc.
发明人： Wesley R. Witte , Priya Thiruvasakan
IPC分类号： G06F3/06
摘要： Systems, methods, and machine-readable media are disclosed for collecting, maintaining, and retrieving use and limit data for connected resources, as well as determining an optimal location for creating a new volume (or volumes) on a storage platform and placing the volume at the determined location. A resource tracker collects resource use and/or limits data and stores it in a database. A volume placement service receives a volume deployment specification having constraints for creating a new volume. The volume placement service retrieves the data from the database. The volume placement service identifies an optimal location for the volume based at least in part on given constraints from the specification and the resource usage data. The system places the requested volume at the determined location.

4. 发明申请

US20220283717A1 Volume Placement Based on Resource Usage 有权
公开(公告)号：US20220283717A1
公开(公告)日：2022-09-08
申请号：US17244467
申请日：2021-04-29
申请人： NetApp, Inc.
发明人： Sundeep Singh , Wesley R. Witte , Gyanendra Pradhan , Priya Thiruvasakan , Mohammed Haroon Shareef , Youyuan Wu , Abhishek Maurya , Sachin Pandit
IPC分类号： G06F3/06
摘要： Systems, methods, and machine-readable media are disclosed for collecting, maintaining, and retrieving use and limit data for connected resources, as well as determining an optimal location for creating a new volume (or volumes) on a storage platform and placing the volume at the determined location. A resource tracker collects resource use and/or limits data and stores it in a database. A volume placement service receives a volume deployment specification having constraints for creating a new volume. The volume placement service retrieves the data from the database. The volume placement service identifies an optimal location for the volume based at least in part on given constraints from the specification and the resource usage data. The system places the requested volume at the determined location.

5. 发明授权

US10255236B2 Lock state reconstruction for non-disruptive persistent operation 有权
公开(公告)号：US10255236B2
公开(公告)日：2019-04-09
申请号：US15374877
申请日：2016-12-09
申请人： NetApp, Inc.
发明人： William Zumach , Omprakaash C. Thoppai , Wesley R. Witte , Raghavendra C. Maddipatla , Saji Kumar Vijaya Kuman Rajendran Nair Rajendran
IPC分类号： G06F16/23 , H04L12/24 , G06F16/176
摘要： Techniques for notifying clients whose locks did not persist about a loss of lock state after a failover event are disclosed herein. According to one embodiment, a storage node of a high availability cluster constructs a lock data structure based on a mirrored lock data structure for a lock on a data container. The storage node receives a data operation request permitted by the lock from a client to operate on the data container. The storage node instructs to terminate a connection with the client if the lock data structure for the lock on the data container has been recently reconstructed. Accordingly, the client revokes the connection and refrains from committing the locally cached operations to the data container stored in the storage node. The client has an option to reconnect with the cluster and regain the data container privilege controlled by the lock.

6. 发明授权

US11637898B2 Volume placement based on resource use and scoring functions 有权
公开(公告)号：US11637898B2
公开(公告)日：2023-04-25
申请号：US17244492
申请日：2021-04-29
申请人： NetApp, Inc.
发明人： Wesley R. Witte , Priya Thiruvasakan
IPC分类号： G06F3/06 , H04L67/1097 , H04L67/51 , H04L67/60
摘要： Systems, methods, and machine-readable media are disclosed for collecting, maintaining, and retrieving use and limit data for connected resources, as well as determining an optimal location for creating a new volume (or volumes) on a storage platform and placing the volume at the determined location. A resource tracker collects resource use and/or limits data and stores it in a database. A volume placement service receives a volume deployment specification having constraints for creating a new volume. The volume placement service retrieves the data from the database. The volume placement service identifies an optimal location for the volume based at least in part on given constraints from the specification and the resource usage data. The system places the requested volume at the determined location.

7. 发明申请

US20200327096A1 METHODS FOR FACILITATING EFFICIENT STORAGE OPERATIONS USING VARIABLE LENGTH ENCODED SEGMENT MAPS FOR DEDUPLICATED OBJECTS AND DEVICES THEREOF 审中-公开
公开(公告)号：US20200327096A1
公开(公告)日：2020-10-15
申请号：US16383969
申请日：2019-04-15
申请人： NetApp, Inc.
发明人： Wesley R. Witte , Sundeep Singh
IPC分类号： G06F16/11 , G06F16/174 , G06F16/13 , G06F16/14
摘要： Methods, non-transitory computer readable media, and computing devices are disclosed that facilitate efficient storage operations using variable length encoded segment maps for deduplicated objects. A key name and elements of a segment list are received with a request to store an object. Each of the elements corresponds to a segment associated with the object and comprises a segment hash. A segment map is generated for the object. The segment map includes a header and entries. Each of the entries includes at least an expanded offset, one of the segment hashes, and a start offset. The segment map is stored in an object store, as associated with the key name, along with segment data included in at least one of the elements.

8. 发明申请

US20170124135A1 LOCK STATE RECONSTRUCTION FOR NON-DISRUPTIVE PERSISTENT OPERATION 审中-公开
公开(公告)号：US20170124135A1
公开(公告)日：2017-05-04
申请号：US15374877
申请日：2016-12-09
申请人： NetApp, Inc.
发明人： William Zumach , Omprakaash Thoppai , Wesley R. Witte , Raghavendra C. Maddipatla , Saji Vijaya Rajendran
IPC分类号： G06F17/30
CPC分类号： G06F17/30362 , G06F17/30171 , H04L41/0654
摘要： Techniques for notifying clients whose locks did not persist about a loss of lock state after a failover event are disclosed herein. According to one embodiment, a storage node of a high availability cluster constructs a lock data structure based on a mirrored lock data structure for a lock on a data container. The storage node receives a data operation request permitted by the lock from a client to operate on the data container. The storage node instructs to terminate a connection with the client if the lock data structure for the lock on the data container has been recently reconstructed. Accordingly, the client revokes the connection and refrains from committing the locally cached operations to the data container stored in the storage node. The client has an option to reconnect with the cluster and regain the data container privilege controlled by the lock.

9. 发明授权

US09542414B1 Lock state reconstruction for non-disruptive persistent operation 有权
标题翻译：锁定状态重建用于无中断持续操作
公开(公告)号：US09542414B1
公开(公告)日：2017-01-10
申请号：US13739872
申请日：2013-01-11
申请人： NetApp, Inc.
发明人： William Zumach , Omprakaash Thoppai , Wesley R. Witte , Raghavendra C. Maddipatla , Saji Vijaya Rajendran
IPC分类号： G06F15/173 , G06F17/30 , H04L12/24
CPC分类号： G06F17/30362 , G06F17/30171 , H04L41/0654
摘要： Techniques for notifying clients whose locks did not persist about a loss of lock state after a failover event are disclosed herein. According to one embodiment, a storage node of a high availability cluster constructs a lock data structure based on a mirrored lock data structure for a lock on a data container. The storage node receives a data operation request permitted by the lock from a client to operate on the data container. The storage node instructs to terminate a connection with the client if the lock data structure for the lock on the data container has been recently reconstructed. Accordingly, the client revokes the connection and refrains from committing the locally cached operations to the data container stored in the storage node. The client has an option to reconnect with the cluster and regain the data container privilege controlled by the lock.
摘要翻译：本文公开了用于通知锁定在故障切换事件之后失去锁定状态的锁定的客户端的技术。根据一个实施例，高可用性集群的存储节点基于用于数据容器上的锁定的镜像锁数据结构构建锁数据结构。存储节点接收来自客户端的锁允许的数据操作请求以对数据容器进行操作。如果数据容器上的锁的锁数据结构最近被重构，则存储节点指示终止与客户端的连接。因此，客户端撤销连接并禁止将本地缓存的操作提交到存储在存储节点中的数据容器。客户端可以选择与集群重新连接，并重新获取由锁定控制的数据容器特权。

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