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1. 发明授权

US10244053B2 Multicast collaborative erasure encoding and distributed parity protection 有权
公开(公告)号：US10244053B2
公开(公告)日：2019-03-26
申请号：US15884697
申请日：2018-01-31
申请人： NEXENTA SYSTEMS, INC.
发明人： Caitlin Bestler , Alexander Aizman , Robert E. Novak
IPC分类号： G06F15/16 , H04L29/08 , H04L12/18 , G06F11/10 , H04L29/06
摘要： The present disclosure provides methods and systems for multicast collaborative erasure encoding and methods and systems for distributed parity protection. One embodiment relates to a method of multicast collaborative erasure encoding of a chunk stored in a distributed object storage cluster. A roll-call request is multicast to every storage server in a negotiating group for the chunk. Roll-call inventory responses are generated and multicast by every storage server in the negotiating group. The roll-call inventory responses are collected by every storage server in the negotiating group from other storage servers in the negotiating group to form a set of roll-call inventory responses. A logical evaluation of the set of roll-call inventory responses may then be performed by every storage server in the negotiating group. Other embodiments, aspects and features are also disclosed.

2. 发明申请

US20180276267A1 METHODS AND SYSTEM FOR EFFICIENTLY PERFORMING EVENTUAL AND TRANSACTIONAL EDITS ON DISTRIBUTED METADATA IN AN OBJECT STORAGE SYSTEM 审中-公开
公开(公告)号：US20180276267A1
公开(公告)日：2018-09-27
申请号：US15469331
申请日：2017-03-24
申请人： NEXENTA SYSTEMS, INC.
发明人： Caitlin BESTLER
IPC分类号： G06F17/30
CPC分类号： G06F16/2365 , G06F16/13 , G06F16/14 , G06F16/2379 , G06F16/951
摘要： The present disclosure provides a method performed by an object storage cluster with distributed metadata. The distributed metadata is defined and stored in a form so as to be guaranteed to be commutative. For eventual edits to the distributed metadata, the system accumulates the edits for subsequent batch processing at relevant storage servers. For transactional edits to the distributed metadata, the system has the relevant storage servers perform a targeted search for older eventual edits to the distributed metadata for the same target object in the accumulation of eventual edits at the relevant storage servers. Before performing the transactional edit, any older eventual edits found by the targeted search are performed by the relevant storage servers.

3. 发明申请

US20180181584A1 METHOD AND SYSTEM FOR MAINTAINING AND SEARCHING INDEX RECORDS 审中-公开
公开(公告)号：US20180181584A1
公开(公告)日：2018-06-28
申请号：US15390124
申请日：2016-12-23
申请人： NEXENTA SYSTEMS, INC.
发明人： Caitlin BESTLER
IPC分类号： G06F17/30
CPC分类号： G06F16/134 , G06F16/164
摘要： One difficult problem is that a straightforward renaming of a directory containing a very large number of subdirectories and files requires locking and then updating, in parallel, the names of vast numbers of directory records. Another problem is that renaming a directory with a very large number of subdirectories and files may cause a mass migration of the metadata for the renamed objects due to their object names being changed. The presently-disclosed solution involves at least a) introducing a “folder” object and b) extending the distributed searchable set of records in the namespace manifest with a “folder” index record. In an exemplary implementation, each instance of a folder object created is described by an instance of a folder index record that is recorded in a namespace manifest. Different embodiments of the solution may be particularly suited to different use cases.

4. 发明申请

US20160191509A1 Methods and Systems for Key Sharding of Objects Stored in Distributed Storage System 有权
标题翻译：存储在分布式存储系统中的对象的关键分片方法和系统
公开(公告)号：US20160191509A1
公开(公告)日：2016-06-30
申请号：US14821697
申请日：2015-08-08
申请人： NEXENTA SYSTEMS, INC.
发明人： Caitlin BESTLER , Robert E. NOVAK , Alexander AIZMAN
IPC分类号： H04L29/06 , G06F12/14
CPC分类号： G06F17/3033 , G06F3/0619 , G06F3/0641 , G06F3/0665 , G06F3/0667 , G06F3/067 , G06F3/0689 , G06F11/00 , G06F12/1408 , G06F17/30159 , H04L9/3239 , H04L9/3242 , H04L63/062 , H04L63/0807 , H04L63/0853 , H04L63/0876 , H04L67/1097 , H04L2209/24
摘要： The present disclosure also provides systems and methods for sharding objects stored in a distributed storage system. In accordance with one embodiment disclosed herein, a key sharding technique is used. Key sharding is an advantageously efficient technique when dealing with an object containing a collection of key-value records. In accordance with an embodiment of the invention, referenced chunks identified by the key shards may each store a subset of the collection of the key-value records, and the key-value records in the subset have key hashes that have a range of matching bits in common. One embodiment disclosed herein provides a method of performing a delta edit of a named object stored in a distributed storage system in which a payload of the named object is stored in key shards. Other embodiments, aspects and features are also disclosed.
摘要翻译：本公开还提供了用于分割存储在分布式存储系统中的对象的系统和方法。根据本文公开的一个实施例，使用密钥分片技术。当处理包含密钥值记录集合的对象时，密钥分片是一种有效的技术。根据本发明的实施例，由密钥分片标识的引用块可以各自存储密钥值记录的集合的子集，并且子集中的密钥值记录具有具有匹配比特范围的密钥散列共同点本文公开的一个实施例提供了一种执行存储在分布式存储系统中的命名对象的增量编辑的方法，其中命名对象的有效载荷存储在密钥分片中。还公开了其它实施例，方面和特征。

5. 发明授权

US09081683B2 Elastic I/O processing workflows in heterogeneous volumes 有权
标题翻译：异构卷中的弹性I / O处理工作流程
公开(公告)号：US09081683B2
公开(公告)日：2015-07-14
申请号：US13904935
申请日：2013-05-29
申请人： NEXENTA SYSTEMS, INC.
发明人： Alexander Aizman , Boris Protopopov
IPC分类号： G06F12/02 , G06F12/08 , G06F3/06
CPC分类号： G06F12/08 , G06F3/0608 , G06F3/0634 , G06F3/0653 , G06F3/0685
摘要： The present disclosure provides advantageous methods and systems for input/output processing workflows in a heterogeneous data volume. One embodiment relates to a method of writing data to a heterogeneous data volume having multiple disk classes of storage. A class of storage tier for the data write is selected using operating modes for the tiers, where the operating mode for a tier instance depends on statistical measures of operating parameters for that tier. One operating mode is an elastic mode, where the chance that a tier instance is selected may vary depending on a statistical measure of an operating parameter in relation to lower and upper threshold values. Other embodiments, aspects and features are also disclosed.
摘要翻译：本公开提供了用于在异构数据量中的输入/输出处理工作流的有利的方法和系统。一个实施例涉及将数据写入具有多个存储盘类型的异构数据卷的方法。使用层的操作模式选择用于数据写入的一类存储层，其中层次实例的操作模式取决于该层的操作参数的统计度量。一种操作模式是弹性模式，其中选择层次实例的机会可以根据关于下限和上限阈值的操作参数的统计度量而变化。还公开了其它实施例，方面和特征。

6. 发明申请

US20140229455A1 SYSTEMS AND METHODS FOR SCALABLE OBJECT STORAGE 有权
标题翻译：可扩展对象存储的系统和方法
公开(公告)号：US20140229455A1
公开(公告)日：2014-08-14
申请号：US14258791
申请日：2014-04-22
申请人： Nexenta Systems, Inc.
发明人： Caitlin BESTLER , Alexander AIZMAN
IPC分类号： G06F17/30
CPC分类号： G06F17/30312 , G06F17/30159
摘要： The present disclosure provides an advantageous systems and related methods for scalable object storage. One embodiment relates to a system that includes at least a manifest tracking subsystem and a chunk payload subsystem. The manifest tracking subsystem stores version manifests and encodes forward-references from the version manifests to chunks. The chunk payload subsystem stores the chunks and encodes back-references to version manifests that reference the chunk. Other embodiments, aspects and features are also disclosed.
摘要翻译：本公开提供了用于可扩展对象存储的有利的系统和相关方法。一个实施例涉及至少包括清单跟踪子系统和块有效载荷子系统的系统。清单跟踪子系统存储版本清单，并将版本清单的前向引用编码为块。块有效载荷子系统存储块，并将引用后缀引用到引用该块的版本清单。还公开了其它实施例，方面和特征。

7. 发明申请

US20140207850A1 SCALABLE TRANSPORT WITH CLUSTER-CONSENSUS RENDEZVOUS 有权
标题翻译：可扩展的运输与集体共同体RENDEZVOUS
公开(公告)号：US20140207850A1
公开(公告)日：2014-07-24
申请号：US14095855
申请日：2013-12-03
申请人： Nexenta Systems, Inc.
发明人： Caitlin BESTLER , Robert E. NOVAK , Alexander AIZMAN
IPC分类号： H04L29/08
CPC分类号： H04L12/18 , G06F9/46 , G06F17/30 , H04L12/185 , H04L12/1854 , H04L12/1877 , H04L47/15 , H04L67/06 , H04L67/1097 , H04L69/164
摘要： Embodiments disclosed herein provide advantageous methods and systems that use multicast communications via unreliable datagrams sent on a protected traffic class. These methods and systems provide effectively reliable multicast delivery while avoiding the overhead associated with point-to-point protocols. Rather than an exponential scaling of point-to-point connections (with expensive setup and teardown of the connections), the traffic from one server is bounded by linear scaling of multicast groups. In addition, the multicast rendezvous disclosed herein creates an edge-managed flow control that accounts for the dynamic state of the storage servers in the cluster, without needing centralized control, management or maintenance of state. This traffic shaping avoids the loss of data due to congestion during sustained oversubscription. Other embodiments, aspects and features are also disclosed.
摘要翻译：本文公开的实施例提供了通过在受保护的业务类上发送的不可靠数据报使用多播通信的有利的方法和系统。这些方法和系统提供有效可靠的多播传递，同时避免与点对点协议相关的开销。点对点连接的指数缩放（连接昂贵的设置和拆卸）而不是一个服务器的流量受多播组线性缩放的约束。此外，本文公开的多播会合创建边缘管理的流量控制，其考虑群集中的存储服务器的动态状态，而不需要集中控制，管理或维护状态。这种流量整形避免了在持续超额认购期间由于拥塞而导致的数据丢失。还公开了其它实施例，方面和特征。

8. 发明申请

US20130024857A1 METHOD AND SYSTEM FOR FLEXIBLE RESOURCE MAPPING FOR VIRTUAL STORAGE APPLIANCES 审中-公开
标题翻译：用于虚拟存储设备的灵活资源映射的方法和系统
公开(公告)号：US20130024857A1
公开(公告)日：2013-01-24
申请号：US13186230
申请日：2011-07-19
申请人： Dmitry YUSUPOV
发明人： Dmitry YUSUPOV
IPC分类号： G06F9/455
CPC分类号： G06F9/5077 , G06F9/45533
摘要： Virtual storage methods and systems allow storage software to be used with a variety of systems and resources without the need to write storage software specific to each particular system. The methods and systems described herein render virtual storage flexibly adaptable to hardware platforms. Through use of a dynamic resource mapper and a start-up loader in booting storage systems, the use of virtual storage appliances is simplified in an integrated and transparent fashion. For ease of system configurations, the mapper and start-up loader are available in a different ways and from a variety of media.
摘要翻译：虚拟存储方法和系统允许存储软件与各种系统和资源一起使用，而无需编写特定于每个特定系统的存储软件。本文描述的方法和系统使虚拟存储灵活地适应于硬件平台。通过在引导存储系统中使用动态资源映射器和启动加载程序，以集成和透明的方式简化虚拟存储设备的使用。为了方便系统配置，映射器和启动加载程序以不同的方式和各种媒体可用。

9. 发明授权

US09385874B2 Scalable transport with client-consensus rendezvous 有权
标题翻译：可扩展的运输与客户一致的会合
公开(公告)号：US09385874B2
公开(公告)日：2016-07-05
申请号：US14095848
申请日：2013-12-03
申请人： Nexenta Systems, Inc.
发明人： Caitlin Bestler , Robert E. Novak , Alexander Aizman
IPC分类号： G06F15/16 , H04L12/18 , H04L29/08 , G06F17/30 , H04L29/06 , H04L12/801 , G06F9/46
CPC分类号： H04L12/18 , G06F9/46 , G06F17/30 , H04L12/185 , H04L12/1854 , H04L12/1877 , H04L47/15 , H04L67/06 , H04L67/1097 , H04L69/164
摘要： Embodiments disclosed herein provide advantageous methods and systems that use multicast communications via unreliable datagrams sent on a protected traffic class. These methods and systems provide effectively reliable multicast delivery while avoiding the overhead associated with point-to-point protocols. Rather than an exponential scaling of point-to-point connections (with expensive setup and teardown of the connections), the traffic from one server is bounded by linear scaling of multicast groups. In addition, the multicast rendezvous disclosed herein creates an edge-managed flow control that accounts for the dynamic state of the storage servers in the cluster, without needing centralized control, management or maintenance of state. This traffic shaping avoids the loss of data due to congestion during sustained oversubscription. Other embodiments, aspects and features are also disclosed.
摘要翻译：本文公开的实施例提供了通过在受保护的业务类上发送的不可靠数据报使用多播通信的有利的方法和系统。这些方法和系统提供有效可靠的多播传递，同时避免与点对点协议相关的开销。点对点连接的指数缩放（连接昂贵的设置和拆卸）而不是一个服务器的流量受多播组线性缩放的约束。此外，本文公开的多播会合创建边缘管理的流量控制，其考虑群集中的存储服务器的动态状态，而不需要集中控制，管理或维护状态。这种流量整形避免了在持续超额认购期间由于拥塞而导致的数据丢失。还公开了其它实施例，方面和特征。

10. 发明申请

US20160188591A1 METHODS AND SYSTEMS FOR KEY-VALUE-TUPLE-ENCODED STORAGE 审中-公开
标题翻译：关键的价值 - 数字编码存储的方法和系统
公开(公告)号：US20160188591A1
公开(公告)日：2016-06-30
申请号：US14821693
申请日：2015-08-08
申请人： Nexenta Systems, Inc.
发明人： Caitlin BESTLER , Robert E. NOVAK , Alexander AIZMAN
IPC分类号： G06F17/30
CPC分类号： G06F17/3033 , G06F3/0619 , G06F3/0641 , G06F3/0665 , G06F3/0667 , G06F3/067 , G06F3/0689 , G06F11/00 , G06F12/1408 , G06F17/30159 , H04L9/3239 , H04L9/3242 , H04L63/062 , H04L63/0807 , H04L63/0853 , H04L63/0876 , H04L67/1097 , H04L2209/24
摘要： The present disclosure provides systems and methods for Key-Value-Tuple-encoded (KVT-encoded) object storage. In accordance with an embodiment of the invention, chunks of objects, storing payload data or metadata, are persistently stored by servers using KVT-encoded storage. Furthermore, the KVT encoding may be applied to advantageously re-structure content within a distributed object storage cluster, especially for object storage systems that allow payload references to be cached extensively. For such systems, it is of considerable value to honor (use as valid) existing chunk references after the underlying content has been re-structured. Further, the KVT encoding taught herein is completely compatible with a fully-distributed object storage cluster. One embodiment relates to a storage server that includes a persistent storage module that provides a key-value application programming interface that encodes multiple key-value-tuple (KVT) entries for one chunk. Other embodiments, aspects and features are also disclosed.
摘要翻译：本公开提供了用于键值元组编码（KVT编码）对象存储的系统和方法。根据本发明的实施例，使用KVT编码的存储器，由服务器持久地存储对象块，存储有效载荷数据或元数据。此外，KVT编码可以被应用于有利地重新构建分布式对象存储集群内的内容，特别是对允许有效载荷参考被广泛缓存的对象存储系统。对于这样的系统，在基础内容重新构造之后，尊重（使用有效的）现有块引用是相当有价值的。此外，本文教导的KVT编码与完全分布的对象存储集群完全兼容。一个实施例涉及一种存储服务器，其包括持久存储模块，其提供对一个块的多个键值元组（KVT）条目进行编码的键值应用编程接口。还公开了其它实施例，方面和特征。

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