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公开(公告)号：US09940196B2
公开(公告)日：2018-04-10
申请号：US15135265
申请日：2016-04-21
Applicant: NETAPP, INC.
Inventor： Richard Christopher Fore , Atul Goel , Stephen H. Strange , Kyle Sterling
CPC classification number: G06F11/1088
Abstract: Methods and systems for a storage environment are provided. For example, one method includes receiving a request from a storage server at an offload engine for reconstructing data lost due to a failed storage device of a parity group having a plurality of storage devices; retrieving data and parity by the offload engine from the parity group storage devices that are operational; determining by the offload engine XOR of the retrieved data and parity; presenting XOR of data and parity by the offload engine to the storage server with context information associated with the retrieved data; and reconstructing lost data by the storage server using the XOR of data and parity and the context information provided by the offload engine.
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2.发明申请公开(公告)号：US20170371556A1
公开(公告)日：2017-12-28
申请号：US15195093
申请日：2016-06-28
Applicant: NetApp, Inc.
Inventor： Ravikanth Dronamraju , Shivali Gupta , Kyle Sterling , Atul Goel
IPC: G06F3/06 , G06F12/0868
CPC classification number: G06F3/0608 , G06F3/0631 , G06F3/064 , G06F3/0679 , G06F12/0246 , G06F12/0868 , G06F2212/1044 , G06F2212/214 , G06F2212/281
Abstract: A method, non-transitory computer readable medium, and device that assists with reducing memory fragmentation in solid state devices includes identifying an allocation area within an address range to write data from a cache. Next, the identified allocation area is determined for including previously stored data. The previously stored data is read from the identified allocation area when it is determined that the identified allocation area comprises previously stored data. Next, both the write data from the cache and the read previously stored data are written back into the identified allocation area sequentially through the address range.
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公开(公告)号：US20170308435A1
公开(公告)日：2017-10-26
申请号：US15135265
申请日：2016-04-21
Applicant: NETAPP, INC.
Inventor： Richard Christopher Fore , Atul Goel , Stephen H. Strange , Kyle Sterling
CPC classification number: G06F11/1088
Abstract: Methods and systems for a storage environment are provided. For example, one method includes receiving a request from a storage server at an offload engine for reconstructing data lost due to a failed storage device of a parity group having a plurality of storage devices; retrieving data and parity by the offload engine from the parity group storage devices that are operational; determining by the offload engine XOR of the retrieved data and parity; presenting XOR of data and parity by the offload engine to the storage server with context information associated with the retrieved data; and reconstructing lost data by the storage server using the XOR of data and parity and the context information provided by the offload engine.
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公开(公告)号：US20170185338A1
公开(公告)日：2017-06-29
申请号：US14757429
申请日：2015-12-23
Applicant: NetApp, Inc.
Inventor： Bharath Kumar K.M. , Jagadish Vasudeva , Atul Goel , Jaldhi Dave
IPC: G06F3/06
CPC classification number: G06F3/0631 , G06F3/0604 , G06F3/0689
Abstract: Presented herein are methods, non-transitory computer readable media, and devices for maximizing parallelization in a parity de-clustered and sliced disk RAID architecture implemented on at least one hard disk drive by creating at least one allocation group, each created allocation group comprising at least one parity group within a sliced disk group, selecting one of said at least one allocation group, and performing at least one of write or read concurrently on all parity groups within the selected allocation group.
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公开(公告)号：US20160266957A1
公开(公告)日：2016-09-15
申请号：US15161870
申请日：2016-05-23
Applicant: NetApp Inc.
Inventor： Todd Mills , Suhas Urkude , Kyle Sterling , Atul Goel
CPC classification number: G06F11/079 , G06F11/0727 , G06F11/0751 , G06F11/0793 , G06F11/2094 , G06F2201/805
Abstract: The disclosed embodiments relate to systems and methods for coordinating management of a shared disk storage between nodes. Particularly, a messaging protocol may be used to communicate notifications regarding each node's perception of the shared storage's state. The nodes may use the messaging protocol to achieve consensus when recovering from a storage device failure. Some embodiments provide for recovery when localized failures, such as failures at an adapter on a node, occur.
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Patent Agency Ranking
6.发明申请公开(公告)号：US20140237211A1
公开(公告)日：2014-08-21
申请号：US14264881
申请日：2014-04-29
Applicant: NetApp, Inc.
Inventor： Atul Goel
IPC: G06F12/02
CPC classification number: G06F12/0223 , G06F3/0614 , G06F3/0631 , G06F3/064 , G06F3/0689 , G06F2212/1008
Abstract: The present invention provides a system and method for virtual block numbers (VBNs) to disk block number (DBN) mapping that may be utilized for both single and/or multiple parity based redundancy systems. Following parity redistribution, new VBNs are assigned to disk blocks in the newly added disk and disk blocks previously occupied by parity may be moved to the new disk.
Abstract translation: 本发明提供了可用于单个和/或多个基于奇偶校验的冗余系统的用于虚拟块号（VBN）到磁盘块号（DBN）映射的系统和方法。 在奇偶校验再分配之后，新增的VBN被分配给新添加的磁盘中的磁盘块，先前由奇偶校验占用的磁盘块可能被移动到新磁盘。
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公开(公告)号：US20140040661A1
公开(公告)日：2014-02-06
申请号：US14053060
申请日：2013-10-14
Applicant: NetApp Inc.
Inventor： Atul Goel
IPC: G06F11/07
CPC classification number: G06F11/0709 , G06F11/1088 , G06F11/1662 , G06F11/2094 , G11C7/1006
Abstract: Some aspects of the disclosure relate to a data storage system that includes multiple memory device storage devices. If a memory device of a memory device array fails within a first data storage device, some portions of the lost or corrupted data from the failed memory device are recovered by reading them from a second data storage device. Other portions of the lost or corrupted data from the failed memory device are recovered from parity information in the first data storage device.
Abstract translation: 本公开的一些方面涉及包括多个存储器设备存储设备的数据存储系统。 如果存储设备阵列的存储设备在第一数据存储设备内发生故障，则通过从第二数据存储设备读取来自故障存储设备的丢失或损坏的数据的一些部分被恢复。 来自故障存储设备的丢失或损坏的数据的其他部分从第一数据存储设备中的奇偶校验信息中恢复。
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公开(公告)号：US11132129B2
公开(公告)日：2021-09-28
申请号：US16584025
申请日：2019-09-26
Applicant: NetApp Inc.
Inventor： Ravikanth Dronamraju , Shivali Gupta , Kyle Sterling , Atul Goel
IPC: G06F3/06 , G06F12/02 , G06F12/0868
Abstract: A method, non-transitory computer readable medium, and device that assists with reducing memory fragmentation in solid state devices includes identifying an allocation area within an address range to write data from a cache. Next, the identified allocation area is determined for including previously stored data. The previously stored data is read from the identified allocation area when it is determined that the identified allocation area comprises previously stored data. Next, both the write data from the cache and the read previously stored data are written back into the identified allocation area sequentially through the address range.
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公开(公告)号：US10430081B2
公开(公告)日：2019-10-01
申请号：US15195093
申请日：2016-06-28
Applicant: NetApp, Inc.
Inventor： Ravikanth Dronamraju , Shivali Gupta , Kyle Sterling , Atul Goel
IPC: G06F3/06 , G06F12/0868 , G06F12/02
Abstract: A method, non-transitory computer readable medium, and device that assists with reducing memory fragmentation in solid state devices includes identifying an allocation area within an address range to write data from a cache. Next, the identified allocation area is determined for including previously stored data. The previously stored data is read from the identified allocation area when it is determined that the identified allocation area comprises previously stored data. Next, both the write data from the cache and the read previously stored data are written back into the identified allocation area sequentially through the address range.
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公开(公告)号：US10180871B2
公开(公告)日：2019-01-15
申请号：US15161870
申请日：2016-05-23
Applicant: NetApp Inc.
Inventor： Todd Mills , Suhas Urkude , Kyle Sterling , Atul Goel
Abstract: The disclosed embodiments relate to systems and methods for coordinating management of a shared disk storage between nodes. Particularly, a messaging protocol may be used to communicate notifications regarding each node's perception of the shared storage's state. The nodes may use the messaging protocol to achieve consensus when recovering from a storage device failure. Some embodiments provide for recovery when localized failures, such as failures at an adapter on a node, occur.
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