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1. 发明授权

US08046446B1 System and method for providing availability using volume server sets in a storage environment employing distributed block virtualization 有权
标题翻译：使用分布式块虚拟化的存储环境中的卷服务器集提供可用性的系统和方法
公开(公告)号：US08046446B1
公开(公告)日：2011-10-25
申请号：US10967902
申请日：2004-10-18
申请人： Ronald S. Karr , Chio Fai Aglaia Kong , Gopal Sharma , Robert Baird , Santosh Rao
发明人： Ronald S. Karr , Chio Fai Aglaia Kong , Gopal Sharma , Robert Baird , Santosh Rao
IPC分类号： G06F15/173
CPC分类号： H04L67/1097
摘要： A system for ensuring availability using volume server sets in a storage environment employing distributed block virtualization includes a plurality of volume servers, one or more volume clients, one or more physical block devices and a volume server manager. The volume server manager may be configured to designate the plurality of volume servers as a volume server set with an associated volume server set management policy, and to verify each volume server in the volume server set has access to storage within each block device. In addition, the volume server manager may be configured to designate a first volume server of the volume server set to aggregate storage within the block devices into a logical volume, to make the logical volume accessible to the volume clients, and to share configuration information about the volume with the other volume servers of the volume server set.
摘要翻译：在使用分布式块虚拟化的存储环境中使用卷服务器集确保可用性的系统包括多个卷服务器，一个或多个卷客户端，一个或多个物理块设备和卷服务器管理器。卷服务器管理器可以被配置为将多个卷服务器指定为具有相关联的卷服务器集管理策略的卷服务器，并且验证卷服务器集合中的每个卷服务器都可以访问每个块设备内的存储。此外，卷服务器管理器可以被配置为指定卷服务器集合的第一卷服务器，以将块设备内的存储聚合成逻辑卷，以使卷客户端可访问逻辑卷，并共享关于与卷服务器的其他卷服务器的卷设置的卷。

2. 发明授权

US09501473B1 Workflow process with temporary storage resource reservation 有权
标题翻译：具有临时存储资源预留的工作流程
公开(公告)号：US09501473B1
公开(公告)日：2016-11-22
申请号：US11018957
申请日：2004-12-21
申请人： Chio Fai Aglaia Kong , Chirag Deepak Dalal , Ronald S. Karr
发明人： Chio Fai Aglaia Kong , Chirag Deepak Dalal , Ronald S. Karr
IPC分类号： G06F7/04 , G06F17/30 , G06F9/50
CPC分类号： G06F17/30 , G06F3/06 , G06F9/46 , G06F9/50 , G06F2209/5014
摘要： A method involves: detecting a storage resource indication within a workflow request and, in response to the storage resource indication, generating an availability indication. The storage resource indication indicates a storage resource (e.g., by directly or indirectly identifying or selecting the storage resource). The availability indication indicates that the indicated storage resource is not available for subsequent workflow requests. The availability indication is generated prior to allowing the consumer that generated the workflow request to use the storage resource. The workflow request can include a request to allocate a logical storage structure (e.g., a volume or logical disk). The logical storage structure is allocated in response to the workflow request. If the workflow request is denied or expires, the logical storage structure is deleted.
摘要翻译：一种方法包括：检测工作流请求内的存储资源指示，并且响应于存储资源指示，生成可用性指示。存储资源指示指示存储资源（例如，通过直接或间接地识别或选择存储资源）。可用性指示表明指示的存储资源不可用于后续工作流请求。在允许生成工作流请求的消费者使用存储资源之前生成可用性指示。工作流请求可以包括分配逻辑存储结构（例如，卷或逻辑磁盘）的请求。响应于工作流请求分配逻辑存储结构。如果工作流请求被拒绝或过期，则删除逻辑存储结构。

3. 发明授权

US07664839B1 Automatic device classification service on storage area network 有权
标题翻译：存储区域网络自动设备分类服务
公开(公告)号：US07664839B1
公开(公告)日：2010-02-16
申请号：US10881837
申请日：2004-06-30
申请人： Ronald S. Karr , Chio Fai Aglaia Kong , Sung-Wook Ryu , Srihari Bathini , De-Chih Chien
发明人： Ronald S. Karr , Chio Fai Aglaia Kong , Sung-Wook Ryu , Srihari Bathini , De-Chih Chien
IPC分类号： G06F15/173
CPC分类号： H04L67/1097 , G06F3/0604 , G06F3/0631 , G06F3/0632 , G06F3/067 , H04L29/12037 , H04L29/12886 , H04L61/106 , H04L61/6045 , H04L67/16 , H04L67/303
摘要： A method, system, computer system, and computer-readable medium to classify a storage device on a SAN prior to allocating the storage device for data storage. A device accessible via a storage area network is detected, and access to the device by a node on the storage area network is established. The device is accessed by a recognizer to determine the type of the device and information about contents of the device. The type of the device can be checked for compatibility with a requester sending a request for a storage device. By checking the compatibility between storage devices and nodes before allocation, spending resources to allocate incompatible storage is avoided and costs of storage management are reduced. Classification information about devices and nodes can be stored in a persistent data store that can be accessed by nodes connected to the SAN.
摘要翻译：一种方法，系统，计算机系统和计算机可读介质，用于在分配用于数据存储的存储设备之前对SAN上的存储设备进行分类。检测到可通过存储区域网络访问的设备，并且建立由存储区域网络上的节点对设备的访问。识别器访问设备以确定设备的类型以及有关设备内容的信息。可以检查设备的类型与发送存储设备请求的请求者的兼容性。通过在分配之前检查存储设备和节点之间的兼容性，避免资源分配不兼容的存储，并降低存储管理成本。有关设备和节点的分类信息可以存储在可由连接到SAN的节点访问的持久性数据存储中。

4. 发明授权

US07627699B1 System and method for managing I/O access policies in a storage environment employing asymmetric distributed block virtualization 有权
标题翻译：在采用非对称分布式块虚拟化的存储环境中管理I / O访问策略的系统和方法
公开(公告)号：US07627699B1
公开(公告)日：2009-12-01
申请号：US11865034
申请日：2007-09-30
申请人： Kalaivani Arumugham , Santosh Rao , Gopal Sharma , Poonam Dhavale , Randy Shingai , Ronald S. Karr , Oleg Kiselev , Shie-Rei Huang
发明人： Kalaivani Arumugham , Santosh Rao , Gopal Sharma , Poonam Dhavale , Randy Shingai , Ronald S. Karr , Oleg Kiselev , Shie-Rei Huang
IPC分类号： G06F13/00 , G06F15/16 , G06F15/167
CPC分类号： G06F3/0637 , G06F3/0605 , G06F3/067
摘要： A system employing asymmetric distributed block virtualization includes a volume server, a plurality of volume clients, and one or more physical block devices. The volume server aggregates storage in the physical block devices into a logical volume and makes the logical volume accessible to the volume clients for input/output (I/O) operations. In order to manage different I/O access requirements (such as read-only access versus read-write access) of the volume clients, the volume server maintains a different I/O access policy for each volume client to control the kinds of input/output operations that the volume client is allowed to perform on the logical volume.
摘要翻译：采用非对称分布式块虚拟化的系统包括卷服务器，多个卷客户机以及一个或多个物理块设备。卷服务器将物理块设备中的存储器聚合到逻辑卷中，并使卷客户端可以访问逻辑卷进行输入/输出（I / O）操作。为了管理卷客户端的不同I / O访问要求（例如只读访问权限与读写访问权限），卷服务器为每个卷客户端维护不同的I / O访问策略，以控制输入/ 允许卷客户端在逻辑卷上执行的输出操作。

5. 发明授权

US07328287B1 System and method for managing I/O access policies in a storage environment employing asymmetric distributed block virtualization 有权
标题翻译：在采用非对称分布式块虚拟化的存储环境中管理I / O访问策略的系统和方法
公开(公告)号：US07328287B1
公开(公告)日：2008-02-05
申请号：US10899201
申请日：2004-07-26
申请人： Kalaivani Arumugham , Santosh Rao , Gopal Sharma , Poonam Dhavale , Randy Shingai , Ronald S. Karr , Oleg Kiselev , Shie-Rei Huang
发明人： Kalaivani Arumugham , Santosh Rao , Gopal Sharma , Poonam Dhavale , Randy Shingai , Ronald S. Karr , Oleg Kiselev , Shie-Rei Huang
IPC分类号： G06F13/00 , G06F15/16 , G06F15/167
CPC分类号： G06F3/0637 , G06F3/0605 , G06F3/067
摘要： A system employing asymmetric distributed block virtualization includes a volume server, a plurality of volume clients, and one or more physical block devices. The volume server aggregates storage in the physical block devices into a logical volume and makes the logical volume accessible to the volume clients for input/output (I/O) operations. In order to manage different I/O access requirements (such as read-only access versus read-write access) of the volume clients, the volume server maintains a different I/O access policy for each volume client to control the kinds of input/output operations that the volume client is allowed to perform on the logical volume.
摘要翻译：采用非对称分布式块虚拟化的系统包括卷服务器，多个卷客户机以及一个或多个物理块设备。卷服务器将物理块设备中的存储器聚合到逻辑卷中，并使卷客户端可以访问逻辑卷进行输入/输出（I / O）操作。为了管理卷客户端的不同I / O访问要求（例如只读访问权限与读写访问权限），卷服务器为每个卷客户端维护不同的I / O访问策略，以控制输入/ 允许卷客户端在逻辑卷上执行的输出操作。

6. 发明授权

US07398350B1 Distribution of data volume virtualization 有权
标题翻译：分布数据量虚拟化
公开(公告)号：US07398350B1
公开(公告)日：2008-07-08
申请号：US10696622
申请日：2003-10-29
申请人： Narasimha R. Valiveti , Ronald S. Karr , Randall K. Shigai , Gopal Sharma
发明人： Narasimha R. Valiveti , Ronald S. Karr , Randall K. Shigai , Gopal Sharma
IPC分类号： G06F12/00
CPC分类号： G06F3/0665 , G06F3/0619 , G06F3/0635 , G06F3/0659 , G06F3/067
摘要： After a first device (e.g., a host node in a shared data clustered system that stores a two-way mirrored volume) in a network creates or modifies a description of a layout for a data volume, the first device transmits separate copies of the data volume layout description to a pair of second devices, respectively, for storage in respective memories thereof. The first device may be a host node, and the pair of second devices may be first and second data storage systems. The first device and the pair of second devices are configured so that I/O transactions are transmitted between the first device and either of the pair of second devices. In other words, the first device is contained in a network layer that is different from the network layer that contains the pair of second devices.
摘要翻译：在网络中的第一设备（例如，存储双向镜像卷的共享数据集群系统中的主机节点）创建或修改数据卷的布局的描述之后，第一设备传送数据的单独副本体积布局描述分别用于存储在其相应存储器中的一对第二设备。第一设备可以是主机节点，并且该对第二设备可以是第一和第二数据存储系统。第一设备和第二设备对被配置为使得I / O事务在第一设备和第二设备中的任一个之间传送。换句话说，第一设备被包含在不同于包含该对第二设备的网络层的网络层中。

7. 发明授权

US08401997B1 System and method for replication using consistency interval markers in a distributed storage environment 有权
标题翻译：在分布式存储环境中使用一致性间隔标记进行复制的系统和方法
公开(公告)号：US08401997B1
公开(公告)日：2013-03-19
申请号：US11230976
申请日：2005-09-20
申请人： Deepak Tawri , Ronald S. Karr , John A. Colgrove , Raghu Krishnamurthy , Anand A. Kekre , Robert Baird , Oleg Kiselev
发明人： Deepak Tawri , Ronald S. Karr , John A. Colgrove , Raghu Krishnamurthy , Anand A. Kekre , Robert Baird , Oleg Kiselev
IPC分类号： G06F7/00 , G06F17/00
CPC分类号： G06F11/2064 , G06F11/2071 , G06F2201/84 , G06F2201/855
摘要： Applications executing on various nodes in a distributed storage environment may write data to primary storage and may also replicate the data to secondary storage via a replication target. An interval coordinator may coordinate the periodic saving of checkpoints or snapshots of the replicated data. The interval coordinator may determine the length of consistency intervals between the saving of each of the checkpoints. Writes to the replication target from each of the nodes may be associated with the current consistency interval and, in some embodiments, with a unique per-node sequence number. When transitioning between consistency intervals, each node may be configured to temporarily suspend completion of the writes and to send the replication target a consistency interval marker indicating that the node has completed all writes for the current consistency interval.
摘要翻译：在分布式存储环境中在各种节点上执行的应用程序可以将数据写入主存储器，并且还可以经由复制目标将数据复制到辅助存储器。间隔协调器可以协调定期保存复制数据的检查点或快照。间隔协调器可以确定保存每个检查点之间的一致性间隔的长度。从每个节点写入复制目标可以与当前的一致性间隔相关联，并且在一些实施例中可以与唯一的每节点序列号相关联。当在一致性间隔之间转换时，可以将每个节点配置为临时挂起写入完成，并向复制目标发送指示节点已完成当前一致性间隔的所有写入的一致性间隔标记。

8. 发明授权

US07467265B1 System and method for block conflict resolution within consistency interval marker based replication 有权
标题翻译：基于一致性间隔标记的复制中的块冲突解决的系统和方法
公开(公告)号：US07467265B1
公开(公告)日：2008-12-16
申请号：US11231185
申请日：2005-09-20
申请人： Deepak Tawri , Ronald S. Karr , John A. Colgrove , Raghu Krishnamurthy , Anand A. Kekre , Robert Baird , Oleg Kiselev
发明人： Deepak Tawri , Ronald S. Karr , John A. Colgrove , Raghu Krishnamurthy , Anand A. Kekre , Robert Baird , Oleg Kiselev
IPC分类号： G06F12/00
CPC分类号： G06F12/0815 , G06F12/0813
摘要： One goal of consistency interval replication is to achieve a consistent copy of data generated by independent streams of writes from nodes in a clustered/distributed environment. Two writes to the same block from different nodes may arrive at a replication target in a different order from the order in which they were written to primary storage. A consistency interval coordinator may analyze a list of blocks modified during a consistency interval to determine conflict blocks written to by two different nodes during the same consistency interval. Conflict resolution may involve a node reading data for a conflict block from primary storage and forwarding it to the replication target or a node completing a suspended in-progress write for the conflict block. Once the conflicts have been resolved, the replication target may checkpoint the data modified during the interval and nodes may resume writes to the conflict blocks for the new interval.
摘要翻译：一致性间隔复制的一个目标是实现由集群/分布式环境中的独立的写入流生成的数据的一致副本。从不同节点对同一个块的两次写入可能会以与写入主存储的顺序不同的顺序到达复制目标。一致性间隔协调器可以分析在一致性间隔期间修改的块的列表，以确定在相同的一致性间隔期间由两个不同节点写入的冲突块。冲突解决可能涉及一个节点从主存储器读取冲突块的数据，并将其转发到复制目标或完成冲突块的暂停进行中写入的节点。一旦冲突已经解决，复制目标可以检查在间隔期间修改的数据，并且节点可以恢复对新间隔的冲突块的写入。

9. 发明授权

US08150805B1 Consistency interval marker assisted in-band commands in distributed systems 有权
标题翻译：分布式系统中一致性间隔标记辅助带内命令
公开(公告)号：US08150805B1
公开(公告)日：2012-04-03
申请号：US11762605
申请日：2007-06-13
申请人： Deepak Tawri , Ronald S. Karr
发明人： Deepak Tawri , Ronald S. Karr
IPC分类号： G06F7/00 , G06F17/00 , G06F13/28
CPC分类号： G06F21/6218 , G06F11/1456 , G06F11/1471 , G06F11/2064 , G06F11/2071 , G06F2201/835 , G06F2221/2101 , G06F2221/2147 , H04L67/1095 , H04L69/40
摘要： In-band commands may be associated with a particular consistency interval and may indicate requested actions to be performed for that consistency interval. An application may desire to perform actions, such as additional backup, snapshots, etc. on stored data, when that data is in a consistent state from the application's point of view. In order to ensure that the data is in a consistent state, a consistency interval may be created on demand. A node may request a consistency interval by sending a consistency request message to a consistency interval coordinator, which in turn, establishes the consistency interval with all nodes in the distributed environment. After sending all write requests for the consistency interval, the node may then send the command message. Command messages may be stored in consistency logs along with write requests and a replication target, or other device, may read both the write requests and the command message.
摘要翻译：带内命令可以与特定的一致性间隔相关联，并且可以指示要为该一致性间隔执行的所请求的动作。当应用程序的观点来看，当数据处于一致状态时，应用程序可能希望对存储的数据执行诸如附加备份，快照等操作。为了确保数据处于一致状态，可以根据需要创建一致性间隔。节点可以通过向一致性间隔协调器发送一致性请求消息来请求一致性间隔，这又一次与分布式环境中的所有节点建立一致性间隔。发送所有一致性间隔的写入请求后，节点可以发送命令消息。命令消息可以与写请求一起存储在一致性日志中，并且复制目标或其他设备可以读取写请求和命令消息。

10. 发明授权

US07814128B2 Multi-volume file support 有权
标题翻译：多卷文件支持
公开(公告)号：US07814128B2
公开(公告)日：2010-10-12
申请号：US10449739
申请日：2003-05-30
申请人： Charles H. Silvers , Ronald S. Karr , John A. Colgrove
发明人： Charles H. Silvers , Ronald S. Karr , John A. Colgrove
IPC分类号： G06F17/30
CPC分类号： G06F3/0643 , G06F3/0605 , G06F3/0614 , G06F3/0631 , G06F3/0683 , G06F17/30067
摘要： A computer accessible medium comprises instructions which, when executed, receive a request to allocate one or more blocks for a file. At least one allocation policy is assigned to the file, wherein the allocation policy specifies one or more storage units on which the blocks are to be allocated. Additionally, if more than one storage unit is specified, the allocation policy includes a control indication indicating a mechanism for selecting among the storage units. The instructions, when executed, may also allocate blocks according to the allocation policy. In another implementation, a computer accessible medium comprises instructions which, when executed receive a request to allocate one or more blocks for a file in a filesystem and allocate blocks according to an allocation policy. Allocation policies are specifiable at two or more levels of granularity in the filesystem.
摘要翻译：计算机可访问介质包括指令，当被执行时，其接收到为文件分配一个或多个块的请求。至少一个分配策略被分配给文件，其中分配策略指定要在其上分配块的一个或多个存储单元。另外，如果指定了多于一个存储单元，则分配策略包括指示用于在存储单元之间进行选择的机制的控制指示。指令执行时也可以根据分配策略分配块。在另一实现中，计算机可访问介质包括指令，当被执行时接收到对文件系统中的文件分配一个或多个块的请求并根据分配策略分配块。分配策略可以在文件系统中的两个或多个粒度级别进行指定。

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