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1. 发明授权

US07243207B1 Technique for translating a pure virtual file system data stream into a hybrid virtual volume 有权
标题翻译：将纯虚拟文件系统数据流翻译成混合虚拟卷的技术
公开(公告)号：US07243207B1
公开(公告)日：2007-07-10
申请号：US10950893
申请日：2004-09-27
申请人： Ashish Prakash , Robert L. Fair , John K. Edwards , Eric Hamilton , Robert M. English
发明人： Ashish Prakash , Robert L. Fair , John K. Edwards , Eric Hamilton , Robert M. English
IPC分类号： G06F12/02
CPC分类号： G06F17/30067 , G06F3/065
摘要： A technique converts a stream of virtual volume block numbers (vvbns) into a hybrid virtual volume (vvol) file system containing both physical volume block numbers (pvbns) and vvbns. The stream of vvbns is illustratively embodied as a file system data stream of a vvol that is transferred by a source to a destination in accordance with image transfer operations, such as volume copying and synchronous or asynchronous mirroring. Transfer of the vvol involves converting a file system on the source vvol into the file system data stream (i.e., a “pure” vvol stream), where all blocks of the vvol are represented by vvbns. The file system data stream is then transferred to the destination, where the vvbns of the pure vvol stream blocks are converted to pvbns of a hybrid stream.
摘要翻译：一种技术将虚拟卷块数（vvbns）流转换为包含物理卷块号（pvbns）和vvbns的混合虚拟卷（vvol）文件系统。 vvbns的流被说明性地表现为根据诸如卷复制和同步或异步镜像的图像传送操作由源传输到目的地的vvol的文件系统数据流。 vvol的传输涉及将源vvol上的文件系统转换为文件系统数据流（即，“纯”vvol流），其中vvol的所有块由vvbns表示。文件系统数据流然后被传送到目的地，其中纯vvol流块的vvbns被转换成混合流的pvbn。

2. 发明授权

US07321962B1 Technique for translating a hybrid virtual volume file system into a pure virtual file system data stream 有权
标题翻译：将混合虚拟卷文件系统翻译成纯虚拟文件系统数据流的技术
公开(公告)号：US07321962B1
公开(公告)日：2008-01-22
申请号：US11703380
申请日：2007-02-07
申请人： Robert L. Fair , Ashish Prakash , Eric Hamilton , John K. Edwards , Robert M. English
发明人： Robert L. Fair , Ashish Prakash , Eric Hamilton , John K. Edwards , Robert M. English
IPC分类号： G06F12/00
CPC分类号： G06F3/064 , G06F3/0619 , G06F3/0643 , G06F3/067
摘要： A method for transferring data of a hybrid virtual volume of a computer data storage system from a source to a destination is disclosed. The method first translates intermingled virtual and physical volume block numbers of the hybrid virtual volume into a data stream having only virtual volume block numbers. The method then sends the data stream to a destination computer.
摘要翻译：公开了将计算机数据存储系统的混合虚拟卷的数据从源传送到目的地的方法。该方法首先将混合虚拟卷的混合虚拟和物理卷块编号转换成仅具有虚拟卷块号的数据流。该方法然后将数据流发送到目标计算机。

3. 发明授权

US07194595B1 Technique for translating a hybrid virtual volume file system into a pure virtual file system data stream 有权
标题翻译：将混合虚拟卷文件系统翻译成纯虚拟文件系统数据流的技术
公开(公告)号：US07194595B1
公开(公告)日：2007-03-20
申请号：US10951196
申请日：2004-09-27
申请人： Robert L. Fair , Ashish Prakash , Eric Hamilton , John K. Edwards , Robert M. English
发明人： Robert L. Fair , Ashish Prakash , Eric Hamilton , John K. Edwards , Robert M. English
IPC分类号： G06F12/00
CPC分类号： G06F3/0643 , G06F3/0611 , G06F3/067 , G06F11/2074 , G06F17/30067
摘要： A technique translates a hybrid virtual volume (vvol) having a file system that contains intermingled virtual and physical volume block numbers (vbns) into a “pure” stream of virtual vbns (vvbns). The stream of vvbns is illustratively embodied as an output file system data stream of a vvol image that is transferred by a source storage system (“source”) to a destination storage system (“destination”) in accordance with image transfer operations, such as volume copying and synchronous or asynchronous mirroring, provided by a volume replication facility. The blocks that are sent as part of the image transfer are selected from a container file of the hybrid vvol on the source. In particular, the invention is directed to a technique for translating physical vbns (pvbns) of a source aggregate on the source to pure vvbns of the output file system data stream that can be used on a destination aggregate of the destination, where embedded pvbns in the source hybrid vvol image are not valid.
摘要翻译：一种技术将具有文件系统的混合虚拟卷（vvol）将包含混合的虚拟和物理卷块号（vbns）的虚拟卷（vvol）转换为“纯”虚拟虚拟虚拟流（vbnbn）。 vvbns的流被示例性地实现为根据图像传送操作将源存储系统（“源”）传送到目的地存储系统（“目的地”）的vvol图像的输出文件系统数据流，例如卷复制和同步或异步镜像，由卷复制工具提供。作为图像传输的一部分发送的块从源上的混合vvol的容器文件中选择。特别地，本发明涉及一种用于将源上的源聚合的物理vbn（pvbn）转换为可以在目的地的目的地聚合上使用的输出文件系统数据流的纯vvbn的技术，其中嵌入的pvbn 源混合vvol映像无效。

4. 发明授权

US07979402B1 System and method for managing file data during consistency points 有权
标题翻译：一致性点管理文件数据的系统和方法
公开(公告)号：US07979402B1
公开(公告)日：2011-07-12
申请号：US12771477
申请日：2010-04-30
申请人： Eric Hamilton , Jeffrey S. Kimmel , Robert L. Fair , Ashish Prakash
发明人： Eric Hamilton , Jeffrey S. Kimmel , Robert L. Fair , Ashish Prakash
IPC分类号： G06F7/00
CPC分类号： G06F17/30088 , Y10S707/99942 , Y10S707/99943 , Y10S707/99944 , Y10S707/99945 , Y10S707/99953
摘要： A system and method for managing data during consistency points in a storage system is provided. A buffer data control structure is modified to include a flags array that tracks various status flags for both a current and a next consistency point (CP). By utilizing multiple pointers within a buffer control structure, the storage system may permit write operations to continue to a data container undergoing write allocation. Received writes during a write allocation procedure are stored in raw data buffers and the buffer control structure is marked as being dirty for a next CP.
摘要翻译：提供了一种用于在存储系统中的一致性点期间管理数据的系统和方法。修改缓冲器数据控制结构以包括跟踪当前和下一个一致性点（CP）的各种状态标志的标志数组。通过利用缓冲器控制结构内的多个指针，存储系统可以允许写入操作继续进行经历写入分配的数据容器。在写入分配过程期间的接收写入被存储在原始数据缓冲器中，并且缓冲器控制结构被标记为对于下一个CP是脏的。

5. 发明授权

US07783611B1 System and method for managing file metadata during consistency points 有权
标题翻译：在一致性点管理文件元数据的系统和方法
公开(公告)号：US07783611B1
公开(公告)日：2010-08-24
申请号：US10705025
申请日：2003-11-10
申请人： Eric Hamilton , Jeffrey S. Kimmel , Robert L. Fair , Ashish Prakash
发明人： Eric Hamilton , Jeffrey S. Kimmel , Robert L. Fair , Ashish Prakash
IPC分类号： G06F17/30 , G06F17/40
CPC分类号： G06F17/30227
摘要： A system and method for enabling write operations to files undergoing write allocation is provided. The system and method generate a shadow state entry of metadata associated with an inode of the file upon receipt of a write operation. During the write allocation process for the inode, the shadow state information is merged with the data stored in the inode to be written to disk.
摘要翻译：提供了一种用于对写入分配文件进行写操作的系统和方法。系统和方法在接收到写入操作时生成与文件的inode相关联的元数据的阴影状态条目。在inode的写入分配过程中，阴影状态信息与存储在要写入磁盘的inode中的数据合并。

6. 发明授权

US07739250B1 System and method for managing file data during consistency points 有权
标题翻译：一致性点管理文件数据的系统和方法
公开(公告)号：US07739250B1
公开(公告)日：2010-06-15
申请号：US12173104
申请日：2008-07-15
申请人： Eric Hamilton , Jeffrey S. Kimmel , Robert L. Fair , Ashish Prakash
发明人： Eric Hamilton , Jeffrey S. Kimmel , Robert L. Fair , Ashish Prakash
IPC分类号： G06F7/00
CPC分类号： G06F17/30088 , Y10S707/99942 , Y10S707/99943 , Y10S707/99944 , Y10S707/99945 , Y10S707/99953
摘要： A system and method for managing file data during consistency points in a file system is provided. A buffer data control structure is modified to include a flags array that tracks various status flags for both a current and a next consistency point (CP). By utilizing multiple pointers within a buffer control structure, the file system may permit write operations to continue to a file undergoing write allocation. Received writes during a write allocation procedure are stored in raw data buffers and the buffer control structure is marked as being dirty for a next CP.
摘要翻译：提供了一种用于在文件系统中的一致性点期间管理文件数据的系统和方法。修改缓冲器数据控制结构以包括跟踪当前和下一个一致性点（CP）的各种状态标志的标志数组。通过利用缓冲器控制结构内的多个指针，文件系统可允许写入操作继续进行正在进行写入分配的文件。在写入分配过程期间的接收写入被存储在原始数据缓冲器中，并且缓冲器控制结构被标记为对于下一个CP是脏的。

7. 发明授权

US07401093B1 System and method for managing file data during consistency points 有权
标题翻译：一致性点管理文件数据的系统和方法
公开(公告)号：US07401093B1
公开(公告)日：2008-07-15
申请号：US10705493
申请日：2003-11-10
申请人： Eric Hamilton , Jeffrey S. Kimmel , Robert L. Fair , Ashish Prakash
发明人： Eric Hamilton , Jeffrey S. Kimmel , Robert L. Fair , Ashish Prakash
IPC分类号： G06F17/00
CPC分类号： G06F17/30088 , Y10S707/99942 , Y10S707/99943 , Y10S707/99944 , Y10S707/99945 , Y10S707/99953
摘要： A system and method for managing file data during consistency points in a file system is provided. A buffer data control structure is modified to include a flags array that tracks various status flags for both a current and a next consistency point (CP). By utilizing multiple pointers within a buffer control structure, the file system may permit write operations to continue to a file undergoing write allocation. Received writes during a write allocation procedure are stored in raw data buffers and the buffer control structure is marked as being dirty for a next CP.
摘要翻译：提供了一种用于在文件系统中的一致性点期间管理文件数据的系统和方法。修改缓冲器数据控制结构以包括跟踪当前和下一个一致性点（CP）的各种状态标志的标志数组。通过利用缓冲器控制结构内的多个指针，文件系统可允许写入操作继续进行正在进行写入分配的文件。在写入分配过程期间的接收写入被存储在原始数据缓冲器中，并且缓冲器控制结构被标记为对于下一个CP是脏的。

8. 发明授权

US07996636B1 Uniquely identifying block context signatures in a storage volume hierarchy 有权
标题翻译：独特地识别存储卷层次结构中的块上下文签名
公开(公告)号：US07996636B1
公开(公告)日：2011-08-09
申请号：US11935704
申请日：2007-11-06
申请人： Ashish Prakash , Robert M. English , Eric Hamilton
发明人： Ashish Prakash , Robert M. English , Eric Hamilton
IPC分类号： G06F13/00
CPC分类号： G06F3/065 , G06F3/0619 , G06F3/067 , G06F11/2094 , G06F2201/815 , G06F2201/83 , G06F2201/84
摘要： A technique uniquely identifies block context signatures in a storage volume hierarchy of a storage system. In particular, the technique assigns unique volume identifiers (“IDs,” e.g., buffer tree or “bufftree” IDs) to volumes of the storage volume hierarchy, and allows clone volumes to determine that data blocks belong to an appropriate ancestor volume (e.g., and were written by the ancestor volume prior to creation of the clone). In this manner, the novel technique may uniquely identify and accurately determine whether an accessed data block is a correct data block (e.g., alleviating occurrences of data ID aliasing).
摘要翻译：技术唯一地标识存储系统的存储卷层级中的块上下文签名。特别地，该技术将独特的卷标识符（“ID”，例如缓冲树或“bufftree”ID）分配给存储卷层次结构的卷，并允许克隆卷确定数据块属于适当的祖先卷（例如，并在创建克隆之前由祖先卷编写）。以这种方式，新技术可以唯一地识别和准确地确定所访问的数据块是否是正确的数据块（例如，缓解数据ID混叠的发生）。

9. 发明授权

US07702870B2 Method and apparatus for defragmentation and for detection of relocated blocks 有权
标题翻译：用于碎片整理和检测重新定位块的方法和装置
公开(公告)号：US07702870B2
公开(公告)日：2010-04-20
申请号：US11336755
申请日：2006-01-19
申请人： Robert M. English , Ashish Prakash
发明人： Robert M. English , Ashish Prakash
IPC分类号： G06F12/00 , G06F13/00 , G06F13/28
CPC分类号： H04L67/1097
摘要： A method of operating a storage system includes moving a block of data stored in the storage system to a new location in the storage system, such as for purposes of defragmentation. After the block has been moved to the new location, the storage system receives a request requiring access to the block. The storage system uses metadata appended to an identified block to detect that the block may have been relocated. The metadata can further be used to distinguish a block that has been relocated from a lost write.
摘要翻译：操作存储系统的方法包括将存储在存储系统中的数据块移动到存储系统中的新位置，例如用于碎片整理的目的。在块被移动到新位置之后，存储系统接收到需要访问块的请求。存储系统使用附加到识别的块的元数据来检测该块可能已被重新定位。元数据可以进一步用于区分已被重新定位的块与丢失的写入。

10. 发明授权

US08055702B2 System and method for caching network file systems 有权
标题翻译：缓存网络文件系统的系统和方法
公开(公告)号：US08055702B2
公开(公告)日：2011-11-08
申请号：US11409625
申请日：2006-04-24
申请人： Jason Ansel Lango , Robert M. English , Paul Christopher Eastham , Qinghua Zheng , Brian Mederic Quirion , Peter Griess , Matthew Benjamin Amdur , Kartik Ayyar , Robert Lieh-Yuan Tsai , David Grunwald , J. Chris Wagner , Emmanuel Ackaouy , Ashish Prakash
发明人： Jason Ansel Lango , Robert M. English , Paul Christopher Eastham , Qinghua Zheng , Brian Mederic Quirion , Peter Griess , Matthew Benjamin Amdur , Kartik Ayyar , Robert Lieh-Yuan Tsai , David Grunwald , J. Chris Wagner , Emmanuel Ackaouy , Ashish Prakash
IPC分类号： G06F15/16
CPC分类号： G06F15/167 , G06F3/0601 , G06F2003/0697 , H04L29/08846 , H04L67/2823 , H04L67/2842
摘要： A network caching system has a multi-protocol caching filer coupled to an origin server to provide storage virtualization of data served by the filer in response to data access requests issued by multi-protocol clients over a computer network. The multi-protocol caching filer includes a file system configured to manage a sparse volume that “virtualizes” a storage space of the data to thereby provide a cache function that enables access to data by the multi-protocol clients. To that end, the caching filer further includes a multi-protocol engine configured to translate the multi-protocol client data access requests into generic file system primitive operations executable by both the caching filer and the origin server.
摘要翻译：网络缓存系统具有耦合到原始服务器的多协议缓存文件管理器，以响应于多协议客户端通过计算机网络发出的数据访问请求，提供由文件管理器服务的数据的存储虚拟化。多协议缓存文件管理器包括被配置为管理“虚拟化”数据的存储空间的稀疏卷从而提供能够由多协议客户端访问数据的高速缓存功能的文件系统。为此，缓存文件管理器还包括多协议引擎，其被配置为将多协议客户端数据访问请求转换为可由缓存文件管理器和原始服务器两者执行的通用文件系统原始操作。

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