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1. 发明授权

US07620671B2 Delegation of metadata management in a storage system by leasing of free file system blocks from a file system owner 有权
标题翻译：通过从文件系统所有者租用可用的文件系统块，在存储系统中委派元数据管理
公开(公告)号：US07620671B2
公开(公告)日：2009-11-17
申请号：US11168136
申请日：2005-06-27
申请人： Xiaoye Jiang , Gang Ma , Uresh K. Vahalia
发明人： Xiaoye Jiang , Gang Ma , Uresh K. Vahalia
IPC分类号： G06F17/30
CPC分类号： G06F17/30067 , Y10S707/99956
摘要： Metadata management in a file server or storage network is delegated from a primary data processor to a secondary data processor in order to reduce data traffic between the primary data processor and the secondary data processor. The primary data processor retains responsibility for managing locks upon objects in the file system that it owns, and also retains responsibility for allocation of free blocks and inodes of the file system. By leasing free blocks and inodes to the secondary and granting locks to the secondary, the secondary can perform the other metadata management tasks such as appending blocks to a file, truncating a file, creating a file, and deleting a file.
摘要翻译：将文件服务器或存储网络中的元数据管理从主数据处理器委托给辅助数据处理器，以便减少主数据处理器和辅助数据处理器之间的数据流量。主数据处理器保留对其拥有的文件系统中的对象管理锁的责任，并且还保留对文件系统的空闲块和inode的分配的责任。通过将空闲块和索引节点租赁到辅助节点，授予锁定到辅助节点，辅助节点可以执行其他元数据管理任务，例如将块附加到文件，截断文件，创建文件以及删除文件。

2. 发明授权

US06453354B1 File server system using connection-oriented protocol and sharing data sets among data movers 有权
标题翻译：文件服务器系统使用面向连接的协议，并在数据移动器之间共享数据集
公开(公告)号：US06453354B1
公开(公告)日：2002-09-17
申请号：US09261626
申请日：1999-03-03
申请人： Xiaoye Jiang , Uresh K. Vahalia , Uday Gupta , Percy Tzelnic
发明人： Xiaoye Jiang , Uresh K. Vahalia , Uday Gupta , Percy Tzelnic
IPC分类号： C06F1516
CPC分类号： G06F17/30171
摘要： A first data mover computer services data access requests from a network client, and a second data mover computer is coupled to the first data mover computer for servicing data access requests from the first data mover computer. The first data mover computer uses a connection-oriented protocol to obtain client context information and to respond to a session setup request from the client by authenticating the client. Then the first data mover computer responds to a file system connection request from the client by forwarding the client context information and the file system connection request to the second data mover computer. Then the first data mover computer maintains a connection between the first data mover computer and the second data mover computer when the client accesses the file system and the first data mover computer passes file access requests from the client to the second data mover computer and returns responses to the file access requests from the second data mover computer to the client. In a preferred embodiment, the connection-oriented protocol is the Common Internet File System (CIFS) Protocol, and multiple clients share a Transmission Control Protocol (TCP) connection between the first data mover computer and the second data mover computer by allocation of virtual channels within the shared TCP connection and multiplexing of data packets of the virtual channels over the shared TCP connection.
摘要翻译：第一数据移动器计算机服务来自网络客户端的数据访问请求，并且第二数据移动器计算机耦合到第一数据移动器计算机，用于为来自第一数据移动器计算机的数据访问请求提供服务。第一数据移动器计算机使用面向连接的协议来获得客户端上下文信息并且通过认证客户端来响应来自客户端的会话建立请求。然后，第一数据移动器计算机通过将客户端上下文信息和文件系统连接请求转发到第二数据移动器计算机来响应来自客户端的文件系统连接请求。然后，当客户端访问文件系统并且第一数据移动器计算机将文件访问请求从客户端传递到第二数据移动器计算机时，第一数据移动器计算机维护第一数据移动计算机和第二数据移动计算机之间的连接，并且返回响应将文件访问请求从第二数据移动计算机发送到客户机。在优选实施例中，面向连接的协议是通用因特网文件系统（CIFS）协议，并且多个客户端通过分配虚拟信道来共享第一数据移动器计算机和第二数据移动器计算机之间的传输控制协议（TCP）连接在共享TCP连接中并通过共享TCP连接复用虚拟通道的数据包。

3. 发明授权

US06389420B1 File manager providing distributed locking and metadata management for shared data access by clients relinquishing locks after time period expiration 有权
标题翻译：文件管理器提供分布式锁定和元数据管理，以便客户在时间段到期后放弃锁定共享数据访问
公开(公告)号：US06389420B1
公开(公告)日：2002-05-14
申请号：US09410514
申请日：1999-09-30
申请人： Uresh K. Vahalia , Xiaoye Jiang , Jeffrey Jon Darcy , Boris Zuckerman , Ronald Curtis Searls
发明人： Uresh K. Vahalia , Xiaoye Jiang , Jeffrey Jon Darcy , Boris Zuckerman , Ronald Curtis Searls
IPC分类号： G06F1730
CPC分类号： G06F17/30171 , Y10S707/99938 , Y10S707/99952
摘要： File locks and file metadata are distributed from a file manager to clients in a data network to permit the clients to share access to file data in data storage. The file manager is permitted to grant a second lock upon the file data without necessarily receiving notification from a client that it has relinquished a first lock on the file data while ensuring that conflicting locks are never granted. The client sets the beginning of a first period of time over which the client may access the file data once the first lock on the file data has been granted by the file manager, and the client sends a lock request to the file manager. The file manager responds by setting the beginning of a second period of time such that the first period of time is certain to have expired once the second period of time has expired, granting the first lock upon the file data to the client, and transmitting a lock grant message to the client. The client receives the lock grant message, and accesses the file data so long as the client's access to the file data will be completed by expiration of the first period of time.
摘要翻译：文件锁和文件元数据从文件管理器分发到数据网络中的客户端，以允许客户端共享对数据存储中的文件数据的访问。文件管理器被允许对文件数据授予第二次锁定，而不必从客户端收到它已经放弃对文件数据的第一次锁定的通知，同时确保不会授予冲突的锁。一旦文件管理器已经对文件数据进行了第一次锁定，客户机就可以设置第一个时间段的开始，客户端可以通过该开始访问文件数据，客户机向文件管理器发送锁定请求。文件管理器通过设置第二时间段的开始来响应，使得第一时间段在第二时间段到期后确定已经期满，向客户端授予对文件数据的第一次锁定，并发送锁定授予消息给客户端。只要客户端对文件数据的访问将在第一个时间段到期之前完成，客户端就会收到锁授予消息，并访问文件数据。

4. 发明授权

US06324581B1 File server system using file system storage, data movers, and an exchange of meta data among data movers for file locking and direct access to shared file systems 有权
标题翻译：文件服务器系统使用文件系统存储，数据移动器和数据移动器之间的元数据交换进行文件锁定和直接访问共享文件系统
公开(公告)号：US06324581B1
公开(公告)日：2001-11-27
申请号：US09261542
申请日：1999-03-03
申请人： Yikang Xu , Uresh K. Vahalia , Xiaoye Jiang , Uday Gupta , Percy Tzelnic
发明人： Yikang Xu , Uresh K. Vahalia , Xiaoye Jiang , Uday Gupta , Percy Tzelnic
IPC分类号： G06F1516
CPC分类号： H04L67/2819 , G06F17/30171 , H04L29/06 , H04L67/42 , H04L69/329
摘要： A plurality of data mover computers control access to respective file systems in data storage. A network client serviced by any of the data movers can access each of the file systems. If a data mover receives a client request for access to a file in a file system to which access is controlled by another data mover, then the data mover that received the client request sends a metadata request to the data mover that controls access to the file system. The data mover that controls access to the file system responds by placing a lock on the file and returning metadata of the file. The data mover that received the client request uses the metadata to formulate a data access command that is used to access the file data in the file system over a bypass data path that bypasses the data mover computer that controls access to the file system.
摘要翻译：多个数据移动器计算机控制对数据存储中的相应文件系统的访问。由任何数据移动器服务的网络客户机可以访问每个文件系统。如果数据移动者接收到访问由另一个数据移动器控制访问的文件系统中的文件的客户端请求，则接收到客户端请求的数据移动器向控制对该文件的访问的数据移动器发送元数据请求系统。控制对文件系统访问的数据移动器通过对文件进行锁定并返回文件的元数据来做出响应。接收客户端请求的数据移动器使用元数据来制定数据访问命令，该命令用于通过旁路数据路径访问文件系统中的文件数据，旁路数据路径绕过控制对文件系统的访问的数据移动器计算机。

5. 发明授权

US07752316B1 Method and system for securing network access to data stored in a data storage system 有权
标题翻译：用于保护对存储在数据存储系统中的数据的网络访问的方法和系统
公开(公告)号：US07752316B1
公开(公告)日：2010-07-06
申请号：US10113168
申请日：2002-03-29
申请人： Mark Kaufman , Uresh K. Vahalia , Percy Tzelnic , Steven M. Blumenau , John T. Fitzgerald , Erez Ofer , James M. McGillis , Mark C. Lippitt , Natan Vishlitzky
发明人： Mark Kaufman , Uresh K. Vahalia , Percy Tzelnic , Steven M. Blumenau , John T. Fitzgerald , Erez Ofer , James M. McGillis , Mark C. Lippitt , Natan Vishlitzky
IPC分类号： G06F15/173 , G06F15/16
CPC分类号： G06F21/6218 , G06F9/468 , G06F17/30067 , H04L63/10
摘要： This invention is a system and for managing data in a secure manner in a data storage environment that is in communication with a network including an internet-based network. The system includes computer-executable logic or software for securely managing internet client's access to data volumes stored on a data storage system, and may also include logic operating with a file server for providing dynamic access of data available to such client's in a secure fashion.
摘要翻译：本发明是一种用于在与包括基于因特网的网络的网络通信的数据存储环境中以安全的方式管理数据的系统。该系统包括用于安全地管理互联网客户端对存储在数据存储系统上的数据量的访问的计算机可执行逻辑或软件，并且还可以包括用文件服务器操作的逻辑，以便以安全的方式提供对这种客户端可用的数据的动态访问。

6. 发明授权

US07120631B1 File server system providing direct data sharing between clients with a server acting as an arbiter and coordinator 有权
标题翻译：文件服务器系统提供客户端与作为仲裁器和协调器的服务器之间的直接数据共享
公开(公告)号：US07120631B1
公开(公告)日：2006-10-10
申请号：US10032161
申请日：2001-12-21
申请人： Uresh K. Vahalia , Percy Tzelnic
发明人： Uresh K. Vahalia , Percy Tzelnic
IPC分类号： G06F7/00
CPC分类号： G06F17/30171 , Y10S707/99938
摘要： A client is permitted to send data access commands directly to network data storage of a network file server after obtaining a lock on at least a portion of the file and obtaining metadata indicating storage locations for the data in the data storage. For example, the client sends to the file server at least one request for access to a file. In response, the file server grants a lock to the client, and returns to the client metadata of the file including information specifying data storage locations in the network data storage for storing data of the file. The client receives the metadata, and uses the metadata to produce at least one data access command for accessing the data storage locations in the network storage. The client sends the data access command to the network data storage to read or write data to the file. For a write operation, the client may modify the metadata. When the client is finished writing to the file, the client returns any modified metadata to the file server.
摘要翻译：允许客户端在获取对文件的至少一部分的锁定并且获得指示数据存储器中的数据的存储位置的元数据之后，将数据访问命令直接发送到网络文件服务器的网络数据存储器。例如，客户端向文件服务器发送至少一个访问文件的请求。作为响应，文件服务器向客户端授予锁定，并且返回到文件的客户端元数据，包括指定用于存储文件的数据的网络数据存储器中的数据存储位置的信息。客户端接收元数据，并使用元数据产生用于访问网络存储器中的数据存储位置的至少一个数据访问命令。客户端将数据访问命令发送到网络数据存储器，以将数据读取或写入文件。对于写操作，客户端可以修改元数据。当客户端完成写入文件时，客户端将任何修改的元数据返回给文件服务器。

7. 发明授权

US5933603A Video file server maintaining sliding windows of a video data set in random access memories of stream server computers for immediate video-on-demand service beginning at any specified location 失效
标题翻译：视频文件服务器保持流服务器计算机的随机存取存储器中的视频数据集的滑动窗口，用于从任何指定位置开始的即时视频点播服务
公开(公告)号：US5933603A
公开(公告)日：1999-08-03
申请号：US661053
申请日：1996-06-10
申请人： Uresh K. Vahalia , John Forecast , Percy Tzelnic
发明人： Uresh K. Vahalia , John Forecast , Percy Tzelnic
IPC分类号： H04N5/93 , G06F12/08 , G11B20/10 , H04L29/06 , H04L29/08 , H04N5/765 , H04N7/173 , H04N21/218 , H04N21/231 , H04N21/2312 , H04N21/239 , H04N21/472 , H04N21/81 , H04N7/16 , G06F13/14
CPC分类号： H04L65/4084 , G06F12/0866 , H04L65/80 , H04L67/1095 , H04L67/2847 , H04L67/42 , H04N21/2182 , H04N21/23106 , H04N21/2396 , H04N21/47202 , H04N21/816 , H04N7/17318 , H04N7/17336 , G06F2212/312 , H04L29/06027 , H04L67/2885
摘要： A video file server includes an integrated cached disk array storage subsystem and a plurality of stream server computers linking the cached disk storage subsystem to a data network for the transfer of video data streams. The video file server further includes a server controller for applying an admission control policy to client requests and assigning stream servers to service the client requests. The stream servers include a real-time scheduler for scheduling isochronous tasks, and supports at least one industry standard network file access protocol and one file access protocol for continuous media file access. The cached disk storage subsystem is responsive to video prefetch commands, and the data specified for a prefetch command for a process are retained in an allocated portion of the cache memory from the time that the cached disk storage subsystem has responded to the prefetch command to the time that the cached disk storage subsystem responds to a fetch command specifying the data for the process. The time between prefetching and fetching is selected based on available disk and cache resources. The video file server provides video-on-demand service by maintaining and dynamically allocating sliding windows of video data in the random access memories of the stream server computers.
摘要翻译：视频文件服务器包括集成缓存的磁盘阵列存储子系统和将高速缓存的磁盘存储子系统链接到用于传输视频数据流的数据网络的多个流服务器计算机。该视频文件服务器还包括服务器控制器，用于向客户端请求应用准入控制策略，并分配流服务器来服务客户端请求。流服务器包括用于调度等时任务的实时调度器，并且支持至少一个工业标准网络文件访问协议和用于连续媒体文件访问的一个文件访问协议。缓存的磁盘存储子系统响应于视频预取命令，并且对于进程的预取命令指定的数据从缓存的磁盘存储子系统对预取命令作出响应的时间保留在高速缓冲存储器的分配部分中缓存磁盘存储子系统响应指定进程数据的fetch命令的时间。基于可用的磁盘和缓存资源选择预取和提取之间的时间。视频文件服务器通过维护和动态地分配流服务器计算机的随机存取存储器中的视频数据的滑动窗口来提供视频点播服务。

8. 发明授权

US09075642B1 Controlling access to resources using independent and nested hypervisors in a storage system environment 有权
标题翻译：在存储系统环境中使用独立和嵌套的管理程序控制对资源的访问
公开(公告)号：US09075642B1
公开(公告)日：2015-07-07
申请号：US13249422
申请日：2011-09-30
申请人： Steve Chalmer , Matthew H. Fredette , Steven T. McClure , Uresh K. Vahalia
发明人： Steve Chalmer , Matthew H. Fredette , Steven T. McClure , Uresh K. Vahalia
IPC分类号： G06F9/46 , G06F9/455
CPC分类号： G06F9/45533 , G06F9/46
摘要： Operating a hypervisor includes running a hypervisor as a thread of an underlying operating system and loading a guest operating system using the hypervisor based on the thread of the underlying operating system, where the hypervisor runs independently of the guest operating system and independently of other hypervisors running as other threads of the underlying operating system. The hypervisor may be a first hypervisor and operating a hypervisor may further include running a second hypervisor nested with the first hypervisor, where the guest operating system may be loaded using both the first hypervisor and the second hypervisor. The underlying operating system may be an operating system of a storage system.
摘要翻译：操作管理程序包括将虚拟机管理程序作为底层操作系统的线程运行，并使用基于操作系统的线程的虚拟机管理程序加载客户机操作系统，虚拟机管理程序独立于客户机操作系统运行，独立于运行的其他管理程序作为底层操作系统的其他线程。管理程序可以是第一管理程序，并且操作管理程序可进一步包括运行与第一管理程序嵌套的第二虚拟机管理程序，其中客户操作系统可以使用第一管理程序和第二管理程序两者来加载。底层操作系统可以是存储系统的操作系统。

9. 发明授权

US08417788B1 File system for virtual local area network 有权
标题翻译：虚拟局域网文件系统
公开(公告)号：US08417788B1
公开(公告)日：2013-04-09
申请号：US09966709
申请日：2001-09-28
申请人： Dennis P. J. Ting , Uresh K. Vahalia , John A. Hilliar , Uday Gupta
发明人： Dennis P. J. Ting , Uresh K. Vahalia , John A. Hilliar , Uday Gupta
IPC分类号： G06F15/167
CPC分类号： G06F17/30233 , H04L12/4641
摘要： A file system that utilizes Virtual Local Area Network (VLAN) addressing and routing schemes to permit implementing multiple networked file system applications in a single data processing system. In particular, a networked file server or data mover has associated with it a mass storage device such as one or more disk drives, as well as one or more Network Interface Cards (NICs). A network interface to the data mover is associated with VLAN identifiers (IDs) such that a VLAN ID can be assigned to each file system. At the physical layer of the data mover, VLAN information is encapsulated and passed up to various higher protocol layers, such as a network layer and/or a transport layer, eventually to a selected file system as dictated by the VLAN ID. The file system application in effect becomes an addressable element of the VLAN. A single data mover can thus be deployed to service multiple groups of end users, as long as the members of each group have different VLAN identifiers for the multiple file systems. The result provides security, access restrictions, and all the other benefits of VLAN protocols that would be obtained by deploying separate data movers for each VLAN, without incurring the acquisition expense and administrative overhead associated with having to purchase and maintain multiple data mover systems.
摘要翻译：一种使用虚拟局域网（VLAN）寻址和路由方案来允许在单个数据处理系统中实现多个联网文件系统应用程序的文件系统。特别地，联网的文件服务器或数据移动器与其相关联的大容量存储设备，例如一个或多个磁盘驱动器以及一个或多个网络接口卡（NIC）。与数据移动设备的网络接口与VLAN标识符（ID）相关联，使得可以为每个文件系统分配VLAN ID。在数据移动设备的物理层，VLAN信息被封装并传递到各种较高的协议层，如网络层和/或传输层，最终到VLAN ID所指定的所选文件系统。文件系统应用程序有效成为VLAN的可寻址元素。因此，只要每个组的成员对多个文件系统具有不同的VLAN标识符，就可以部署单个数据移动器来服务多个终端用户组。该结果提供了通过为每个VLAN部署单独的数据移动器而获得的VLAN协议的安全性，访问限制和所有其他优点，而不会导致与必须购买和维护多个数据移动器系统相关的采购费用和管理开销。

10. 发明授权

US07437407B2 File server system providing direct data sharing between clients with a server acting as an arbiter and coordinator 有权
标题翻译：文件服务器系统提供客户端与作为仲裁器和协调器的服务器之间的直接数据共享
公开(公告)号：US07437407B2
公开(公告)日：2008-10-14
申请号：US11168058
申请日：2005-06-27
申请人： Uresh K. Vahalia , Percy Tzelnic
发明人： Uresh K. Vahalia , Percy Tzelnic
IPC分类号： G06F15/16
CPC分类号： G06F17/30171 , Y10S707/99936 , Y10S707/99938
摘要： A client is permitted to send data access commands directly to network data storage of a network file server after obtaining a lock on at least a portion of the file and obtaining metadata indicating storage locations for the data in the data storage. For example, the client sends to the file server at least one request for access to a file. In response, the file server grants a lock to the client, and returns to the client metadata of the file including information specifying data storage locations in the network data storage for storing data of the file. The client receives the metadata, and uses the metadata to produce at least one data access command for accessing the data storage locations in the network storage. The client sends the data access command to the network data storage to read or write data to the file. For a write operation, the client may modify the metadata. When the client is finished writing to the file, the client returns any modified metadata to the file server.
摘要翻译：允许客户端在获取对文件的至少一部分的锁定并且获得指示数据存储器中的数据的存储位置的元数据之后，将数据访问命令直接发送到网络文件服务器的网络数据存储器。例如，客户端向文件服务器发送至少一个访问文件的请求。作为响应，文件服务器向客户端授予锁定，并且返回到文件的客户端元数据，包括指定用于存储文件的数据的网络数据存储器中的数据存储位置的信息。客户端接收元数据，并使用元数据产生用于访问网络存储器中的数据存储位置的至少一个数据访问命令。客户端将数据访问命令发送到网络数据存储器，以将数据读取或写入文件。对于写操作，客户端可以修改元数据。当客户端完成写入文件时，客户端将任何修改的元数据返回给文件服务器。

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