公开(公告)号：WO0229572A8

公开(公告)日：2002-09-12

申请号：PCT/US0131422

申请日：2001-10-04

Applicant: NETWORK APPLIANCE INC

Inventor： VISWANATHAN SRINIVASAN ,  KLEIMAN STEVEN R

IPC: G06F11/14 ,  G06F11/20 ,  G06F11/00

CPC classification number: G06F11/2082 ,  G06F11/1471 ,  G06F11/2064 ,  Y10S707/99953 ,  Y10S707/99955

Abstract: The invention provides a method and system for recovery of file system data in file servers having mirrored file system volumes. The invention makes use of a "snapshot" feature of a robust file system (the "WAFL File System) to rapidly determine which of two or more mirrored volumes is most up-to-date, and which file blocks of the most recent mirrored volume have been changed from each one of the mirrored file systems. In a preferred embodiment, among a plurality of mirrored volumes, the invention rapidly determines which is the most up-to-date by examining a consistency point number maintained by the WAFL File System at each mirrored volume. The invention rapidly pairwise determines what blocks are shared between that most up-to-date mirrored volume and each other mirrored volume, in response to a snapshot of the file system maintained at each mirrored volume and are stored in common pairwise between each mirrored volume and the most up-to-date mirrored volume. The invention re synchronizes only those blocks that have been changed between the common snapshot and the most up-to-date snapshot.

Abstract translation: 本发明提供了一种用于恢复具有镜像文件系统卷的文件服务器中的文件系统数据的方法和系统。 本发明利用鲁棒文件系统（“WAFL文件系统”）的“快照”特征来快速确定两个或更多个镜像卷中的哪一个是最新的，以及最近镜像卷的哪些文件块 在一个优选实施例中，在多个镜像卷中，本发明通过检查由WAFL文件系统保存的一致性点号来快速确定哪一个是最新的 每个镜像卷本发明快速成对地确定在最新的镜像卷和每个其他镜像卷之间共享哪些块，以响应在每个镜像卷上维护的文件系统的快照，并且在两者之间共同存储 每个镜像卷和最新的镜像卷。本发明仅重新同步在公共快照和最新快照之间已经改变的那些块。

公开(公告)号：WO0229573A3

公开(公告)日：2002-07-11

申请号：PCT/US0125763

申请日：2001-08-17

Applicant: NETWORK APPLIANCE INC

Inventor： LEWIS BLAKE ,  EDWARDS JOHN K ,  VISWANATHAN SRINIVASAN

IPC: G06F11/14

CPC classification number: G06F11/14 ,  G06F11/1435 ,  G06F2201/84 ,  Y10S707/99931 ,  Y10S707/99956

Abstract: The invention provides an improved method and apparatus for creating a snapshot of a file system. In a first aspect of the invention, a "copy-on-write" mechanism is used. An effective snapshot mechanism must be efficient both in its use of storage space and in the time needed to create it because file systems are often large. The snapshot uses the same blocks as the active file system until the active file system is modified. Whenever a modification occurs, the modified data is copied to a new block and the old data is saved (henceforth called "copy-on-write". In this way, the snapshot only uses space where it differs from the active file system, and the amount of work required to create the snapshot is small. In a second aspect of the invention, a record of which blocks are being used by the snapshot is included in the snapshot itself, allowing effectively instantaneous snapshot creation and deletion.

Abstract translation: 本发明提供了一种用于创建文件系统的快照的改进的方法和装置。 在本发明的第一方面中，使用“写入时复制”机制。 有效的快照机制在使用存储空间和创建它所需的时间内都必须高效，因为文件系统通常很大。 快照使用与活动文件系统相同的块，直到活动文件系统被修改。 每当修改发生时，修改后的数据将被复制到一个新的块中，并保存旧的数据（以下称为“写入时复制”）。这样，快照仅使用与活动文件系统不同的空间，并且 创建快照所需的工作量很小在本发明的第二方面，快照正在使用哪些块正在被快照使用的记录，其允许快速创建和删除瞬间快照。

公开(公告)号：WO2008054751A3

公开(公告)日：2010-01-07

申请号：PCT/US2007022932

申请日：2007-10-29

Applicant: NETWORK APPLIANCE INC ,  SENTHILKUMAR PONNAPPAN ,  PANNEM HEMANTH ,  KUMAR KARTIK ,  KAMILA SHAILAJA ,  SURANA ANSHU

Inventor： SENTHILKUMAR PONNAPPAN ,  PANNEM HEMANTH ,  KUMAR KARTIK ,  KAMILA SHAILAJA ,  SURANA ANSHU

IPC: G06F3/06 ,  G06F11/30

CPC classification number: G06F11/3485 ,  G06F3/0605 ,  G06F3/0653 ,  G06F3/0664 ,  G06F3/067 ,  G06F11/2069 ,  G06F2201/815

Abstract: A storage management application is provided to manage and monitor virtual storage servers in a hosting storage server. In addition, in order to facilitate virtual storage server management and monitoring, a virtual storage server administrator role is provided. The role is allowed to access details of the virtual storage server assigned to the role, but not the details of the hosting server and other virtual servers.

Abstract translation: 提供存储管理应用程序来管理和监视托管存储服务器中的虚拟存储服务器。 另外，为了方便虚拟存储服务器管理和监控，提供虚拟存储服务器管理员角色。 允许角色访问分配给该角色的虚拟存储服务器的详细信息，而不是托管服务器和其他虚拟服务器的详细信息。

公开(公告)号：WO2009134262A1

公开(公告)日：2009-11-05

申请号：PCT/US2008/062074

申请日：2008-04-30

Applicant: NETWORK APPLIANCE, INC. ,  SUSARLA, Sai Rama Krishna ,  NIRANJAN, Thirumale ,  NANDI, Siddhartha ,  EVERHART, Craig F. ,  VORUGANTI, Kaladhar ,  VOLL, Jim

Inventor： SUSARLA, Sai Rama Krishna ,  NIRANJAN, Thirumale ,  NANDI, Siddhartha ,  EVERHART, Craig F. ,  VORUGANTI, Kaladhar ,  VOLL, Jim

IPC: G06F17/50

CPC classification number: G06F17/5009

Abstract: Example embodiments provide various techniques for modeling network storage environments. To model a particular storage environment, component models that are associated with the components of the storage environment are loaded. Each component model is programmed to mathematically simulate one or more components of the storage environment. A system model is then composed from the component models and this system model is configured to simulate the storage environment.

Abstract translation: 示例性实施例提供了用于建模网络存储环境的各种技术。 要建模特定的存储环境，将加载与存储环境的组件相关联的组件模型。 每个组件模型被编程为在数学上模拟存储环境的一个或多个组件。 然后从组件模型组成系统模型，并将该系统模型配置为模拟存储环境。

公开(公告)号：WO2008121240A3

公开(公告)日：2008-12-18

申请号：PCT/US2008003612

申请日：2008-03-19

Applicant: NETWORK APPLIANCE INC

Inventor： WEBMAN EREZ ,  NOVICK YORAM ,  KOREN DVIR

IPC: G06F11/14 ,  G06F11/20

CPC classification number: G06F11/14 ,  G06F11/2064 ,  G06F11/2071 ,  G06F11/2074 ,  Y10S707/959

Abstract: A write ordering style asynchronous replication service utilizes a loosely-accurate global clock in a data backup and recovery storage environment. The storage environment includes a set of source storage systems illustratively embodied as source replication nodes that cooperate to maintain a consistency group that may span multiple geographical sites. The storage environment also includes one or more target storage systems illustratively embodied as target replication nodes configured to service the consistency group. The write ordering style service utilizes the loosely-accurate global clock to provide consistent replication of a storage space of the consistency group.

Abstract translation: 写排序方式异步复制服务在数据备份和恢复存储环境中使用松散准确的全局时钟。 存储环境包括说明性地体现为源复制节点的一组源存储系统，所述源复制节点合作维护可跨越多个地理站点的一致性组。 存储环境还包括一个或多个目标存储系统，该目标存储系统说明性地体现为被配置为服务一致性组的服务器。 写排序样式服务利用松散准确的全局时钟来提供一致性组的存储空间的一致复制。

公开(公告)号：WO2008147516A1

公开(公告)日：2008-12-04

申请号：PCT/US2008/006536

申请日：2008-05-22

Applicant: NETWORK APPLIANCE, INC.

Inventor： FRANDZEL, Yuval

IPC: G06F17/30

CPC classification number: G06F17/30159 ,  G06F3/0608 ,  G06F3/0641 ,  G06F3/0689

Abstract: A system and method for "on-the-fly" de-duplication of data before storing the data in a storage system is provided. A data de-duplication module illustratively cooperates with protocol servers and a file system of a storage operating system executing on the storage system to implement the novel de-duplication technique. The deduplication module illustratively generates a block store, an index file and a hash table on storage space provided by the storage system. The hash table is utilized for tracking fingerprints and locations of blocks within the block store. The index file is utilized for storing directory information identifying the contents of data containers stored on the storage system, while the block store is utilized to store raw data blocks that comprise the data containers.

Abstract translation: 提供了一种在将数据存储在存储系统中之前用于“即时”重复数据删除数据的系统和方法。 数据重复数据删除模块说明性地与协议服务器和在存储系统上执行的存储操作系统的文件系统协作以实现新的重复数据删除技术。 重复数据消除模块说明性地在由存储系统提供的存储空间上生成块存储，索引文件和散列表。 哈希表用于跟踪块存储中的指纹和块的位置。 索引文件用于存储识别存储在存储系统上的数据容器的内容的目录信息，同时使用块存储来存储构成数据容器的原始数据块。

公开(公告)号：WO2008134004A1

公开(公告)日：2008-11-06

申请号：PCT/US2008/005372

申请日：2008-04-24

Applicant: NETWORK APPLIANCE, INC. ,  FAIR, Robert, L. ,  ENGLISH, Robert, M.

Inventor： FAIR, Robert, L. ,  ENGLISH, Robert, M.

IPC: G06F3/06

CPC classification number: G06F3/0653 ,  G06F3/061 ,  G06F3/064 ,  G06F3/0689 ,  G06F12/0862 ,  G06F12/0866

Abstract: A data storage system pre-fetches data blocks from a mass storage device, then determines whether reallocation of the pre-fetched blocks would improve access to them. If access would be improved, the pre-fetched blocks are written to different areas of the mass storage device. Several different implementations of such data storage systems are described.

Abstract translation: 数据存储系统从大容量存储设备预取数据块，然后确定预取块的重新分配是否会改善对它们的访问。 如果访问将被改进，则预取块被写入大容量存储设备的不同区域。 描述了这种数据存储系统的若干不同实现。

公开(公告)号：WO2008133812A1

公开(公告)日：2008-11-06

申请号：PCT/US2008/004763

申请日：2008-04-14

Applicant: NETWORK APPLIANCE, INC.

Inventor： ENGLISH, Robert, M.

IPC: G06F12/08

CPC classification number: G06F3/0644 ,  G06F3/0613 ,  G06F3/0689

Abstract: A system and method enhances performance of updates to sequential block storage of a storage system. According to an aspect of the invention, a disk array of the storage system is utilized to extend write buffers of the system, thereby rendering a por- tion of the disk array a disk-based log. To that end, one portion of the disk array is organized into a home location array having a set of sequential home locations for disk blocks. Another portion of the disk array is organized into the disk-based log having a set of log buffers configured to store versions of disk blocks that have yet to be returned to their home locations in the home location array. In addition, non- volatile memory of the storage system is organized as an index configured to provide efficient mappings of disk blocks not yet returned to their home locations. In accordance with another aspect of the invention, a novel disk-based multi-level sort procedure is provided to establish locality among updates (write data) held in the disk-based log, thereby enabling the write data to be efficiently written to home locations on the disk array.

Abstract translation: 系统和方法增强了对存储系统的顺序块存储的更新的性能。 根据本发明的一个方面，存储系统的磁盘阵列用于扩展系统的写入缓冲器，从而使磁盘阵列的一部分成为基于磁盘的日志。 为此，磁盘阵列的一部分被组织成具有用于磁盘块的一组顺序归属位置的归属位置阵列。 磁盘阵列的另一部分被组织到具有一组日志缓冲器的基于磁盘的日志中，该组日志缓冲器被配置为存储尚未被返回到归属位置阵列中的本地位置的磁盘块的版本。 此外，存储系统的非易失性存储器被组织为被配置为提供尚未返回到其本地位置的磁盘块的有效映射的索引。 根据本发明的另一方面，提供了一种新颖的基于磁盘的多级分类过程，以在保持在基于磁盘的日志中的更新（写入数据）之间建立位置，从而使写入数据能够有效地写入本地位置 在磁盘阵列上。

公开(公告)号：WO2007064637A3

公开(公告)日：2008-07-31

申请号：PCT/US2006045536

申请日：2006-11-28

Applicant: NETWORK APPLIANCE INC ,  PITTMAN JOSEPH C

Inventor： PITTMAN JOSEPH C

IPC: G06F11/20

CPC classification number: G06F11/2092 ,  G06F11/2005

Abstract: A system and method for the failover of iSCSI target portal groups (TPGs) is provided. Each network portal within a storage system is associated with a network portal data structure identifying a destination storage system in the event of failover/takeover operation. A management module ensures that all network portals associated with a target portal group have the same destination as a failover storage system. During a failover operation, all network portals within a TPG failover to the same destination storage system.

Abstract translation: 提供了iSCSI目标门户组（TPG）故障转移的系统和方法。 在故障切换/接管操作的情况下，存储系统中的每个网络门户与识别目的地存储系统的网络门户数据结构相关联。 管理模块确保与目标门户组相关联的所有网络门户与故障转移存储系统具有相同的目标。 在故障切换操作期间，TPG内的所有网络端口都将故障切换到同一目标存储系统。

公开(公告)号：WO2008085344A2

公开(公告)日：2008-07-17

申请号：PCT/US2007025851

申请日：2007-12-18

Applicant: NETWORK APPLIANCE INC ,  KALRA PRADEEP ,  GUJAR MITALEE ,  COATNEY SUSAN M ,  CRAMER SAM

Inventor： KALRA PRADEEP ,  GUJAR MITALEE ,  COATNEY SUSAN M ,  CRAMER SAM

CPC classification number: H04L41/0213 ,  H04L63/061 ,  H04L67/1097 ,  H04L69/40

Abstract: The present invention includes a processing system. The processing system includes a controller to manage the processing system. The processing system also includes a remote management module coupled to said controller and a network. The remote management module to monitor operating conditions of said controller and to send a message on said network responsive to operating conditions that indicate a failure of said controller to a failover partner.

Abstract translation: 本发明包括一种处理系统。 处理系统包括用于管理处理系统的控制器。 处理系统还包括耦合到所述控制器和网络的远程管理模块。 所述远程管理模块用于监视所述控制器的操作条件并且响应于指示所述控制器对故障切换伙伴的故障的操作条件而在所述网络上发送消息。