公开(公告)号：US20190132415A1

公开(公告)日：2019-05-02

申请号：US15970215

申请日：2018-05-03

申请人： Srinivasan Viswanathan ,  Jagannathdas Rath

发明人： Srinivasan Viswanathan ,  Jagannathdas Rath

IPC分类号： H04L29/08 ,  H04L12/725

摘要： In an aspect, a computer-implemented method for managing active read and write data routing and placement policy overview in an application-oriented system comprising: when an application issues a write operation, a writeback system of the application-oriented system writes the data only in the Virtual Element (VE) of the cache Virtual Storage Objects (VSTO) and not on another capacity layer VSTO; when an application issues an attribute write operation or metadata write operation, a writeback system of the application oriented system executes the attribute write operation in an appropriate Meta chunk Virtual Element (VE) of the cache VSTO only and not on another capacity layer VSTO; and persistently implementing a metadata change only in the Meta chunk VE.

公开(公告)号：US10013185B2

公开(公告)日：2018-07-03

申请号：US15222918

申请日：2016-07-28

申请人： Srinivasan Viswanathan ,  Jagannathdas Rath

发明人： Srinivasan Viswanathan ,  Jagannathdas Rath

IPC分类号： G06F3/06 ,  G06F12/0806

CPC分类号： G06F3/0613 ,  G06F3/0619 ,  G06F3/065 ,  G06F3/067 ,  G06F12/0806 ,  G06F16/13 ,  G06F2212/621 ,  H04L67/1097

摘要： In an embodiment, a mapping method of an accelerated application-oriented middleware layer is provided. The method includes, using a first mapper, determining for an input output operation whether a data storage location has been designated for storing a corresponding data in a virtual storage object, the input output operation involving the corresponding data. The method further includes, using the first mapper and at least one processor, acquiring the virtual element identification of the corresponding data. The method also includes, using the virtual element identification and the corresponding data, performing the input output operation.

公开(公告)号：US07437727B2

公开(公告)日：2008-10-14

申请号：US10105039

申请日：2002-03-21

申请人： James Leong ,  Rajesh Sundaram ,  Douglas P. Doucette ,  Stephen H. Strange ,  Srinivasan Viswanathan

发明人： James Leong ,  Rajesh Sundaram ,  Douglas P. Doucette ,  Stephen H. Strange ,  Srinivasan Viswanathan

IPC分类号： G06F9/46 ,  G06F3/00 ,  G06F12/00

CPC分类号： G06F9/4856 ,  G06F3/0601 ,  G06F9/4881 ,  G06F9/5016 ,  G06F9/524 ,  G06F2003/0697 ,  G06F2209/484

摘要： The present invention implements an I/O task architecture in which an I/O task requested by the storage manager, for example a stripe write, is decomposed into a number of lower-level asynchronous I/O tasks that can be scheduled independently. Resources needed by these lower-level I/O tasks are dynamically assigned, on an as-needed basis, to balance the load and use resources efficiently, achieving higher scalability. A hierarchical order is assigned to the I/O tasks to ensure that there is a forward progression of the higher-level I/O task and to ensure that resources do not become deadlocked.

摘要翻译： 本发明实现了I / O任务架构，其中由存储管理器请求的I / O任务（例如条带写入）被分解成可以独立调度的多个较低级别的异步I / O任务。 这些较低级I / O任务所需的资源根据需要动态分配，以有效平衡负载和使用资源，实现更高的可扩展性。 分层次序分配给I / O任务，以确保上级I / O任务有前进的进程，并确保资源不会成为死锁。

公开(公告)号：US20060271734A1

公开(公告)日：2006-11-30

申请号：US11497590

申请日：2006-08-02

申请人： Stephen Strange ,  Scott Schoenthal ,  Douglas Doucette ,  Srinivasan Viswanathan

发明人： Stephen Strange ,  Scott Schoenthal ,  Douglas Doucette ,  Srinivasan Viswanathan

IPC分类号： G06F12/16 ,  G06F12/00

CPC分类号： G06F3/0607 ,  G06F3/0643 ,  G06F3/0647 ,  G06F3/0665 ,  G06F3/0689 ,  G06F11/1092 ,  G06F11/2056 ,  G06F2211/1023 ,  H04L67/1097

摘要： A storage operating system is configured to assign volume block numbers (VBNs) to a volume. The system has a plurality of disks, and each disk of the plurality of disks is assigned disk block numbers (DBNs). A raidmap is configured to map the VBNs to the DBNs of the plurality of physical disks, the mapping for a particular disk stored in a disk label for the particular disk. The disk label for the particular disk is then written to the particular disk.

摘要翻译： 存储操作系统被配置为将卷块号（VBN）分配给卷。 该系统具有多个盘，并且多个盘中的每个盘分配有磁盘块号（DBN）。 raidmap被配置为将VBN映射到多个物理磁盘的DBN，对于特定磁盘的磁盘标签中存储的特定磁盘的映射。 然后将特定磁盘的磁盘标签写入特定磁盘。

公开(公告)号：US07096379B2

公开(公告)日：2006-08-22

申请号：US10719699

申请日：2003-11-21

申请人： Srinivasan Viswanathan ,  Steven R. Kleiman

发明人： Srinivasan Viswanathan ,  Steven R. Kleiman

IPC分类号： G06F11/00

CPC分类号： G06F11/2082 ,  G06F11/1471 ,  G06F11/2064 ,  Y10S707/99953 ,  Y10S707/99955

摘要： 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”) disclosed in the Incorporated Disclosures, to rapidly determined 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.

公开(公告)号：US6047332A

公开(公告)日：2000-04-04

申请号：US885149

申请日：1997-06-30

申请人： Srinivasan Viswanathan ,  Siamak Nazari ,  Anil Swaroop ,  Yousef Khalidi

发明人： Srinivasan Viswanathan ,  Siamak Nazari ,  Anil Swaroop ,  Yousef Khalidi

IPC分类号： G06F13/14 ,  G06F9/50 ,  G06F17/30 ,  G06F15/16

CPC分类号： G06F9/5061 ,  G06F17/30067

摘要： A system and method are disclosed for rendering devices on a cluster globally visible, wherein the cluster includes a plurality of nodes on which the devices are attached. The system establishes for each of the devices in the cluster at least one globally unique identifier enabling global access to the device. The system includes a device registrar that creates the identifiers and a global file system. The identifiers include a globally unique logical name by which users of the cluster identify the device and a globally unique physical name by which the global file system identifies the device. The registrar creates a one-to-one mapping between the logical name and the physical name for each of the devices. The system also includes a device information (dev.sub.-- info) data structure maintained by the device registrar that represents physical associations of the devices within the cluster. Each association corresponds to the physical name of a device file maintained by the global file system. The device registrar determines for an attached device a globally unique, device type (dev.sub.-- t) value; creates dev.sub.-- info data structure entry and a corresponding physical name; generates a logical name based on the dev.sub.-- t value and the physical name; and associates the dev.sub.-- t value with the device file representing the attached device. Given this framework, a user of the cluster can access any of the devices by issuing the global file system an access request identifying the device to be accessed by its logical name.

摘要翻译： 公开了一种系统和方法，用于在集群上呈现全局可见的设备，其中所述集群包括多个节点，所述设备附接在所述节点上。 系统为集群中的每个设备建立至少一个全局唯一标识符，以实现对设备的全局访问。 该系统包括创建标识符和全局文件系统的设备注册器。 标识符包括全局唯一的逻辑名称，集群的用户通过该名称标识设备，全局文件系统通过该物理名称标识设备。 注册商在每个设备的逻辑名称和物理名称之间创建一对一映射。 该系统还包括由设备注册器维护的表示集群内的设备的物理关联的设备信息（dev-info）数据结构。 每个关联对应于由全局文件系统维护的设备文件的物理名称。 设备注册商确定连接的设备具有全局唯一的设备类型（dev-t）值; 创建dev-info数据结构条目和相应的物理名称; 根据dev-t值和物理名称生成逻辑名称; 并将dev-t值与表示所连接设备的设备文件相关联。 给定该框架，群集的用户可以通过向全局文件系统发送标识要由其逻辑名访问的设备的访问请求来访问任何设备。

公开(公告)号：US08041924B2

公开(公告)日：2011-10-18

申请号：US12640038

申请日：2009-12-17

申请人： Stephen H. Strange ,  Scott Schoenthal ,  Douglas P. Doucette ,  Srinivasan Viswanathan

发明人： Stephen H. Strange ,  Scott Schoenthal ,  Douglas P. Doucette ,  Srinivasan Viswanathan

IPC分类号： G06F12/08 ,  G06F11/07

CPC分类号： G06F3/0607 ,  G06F3/0643 ,  G06F3/0647 ,  G06F3/0665 ,  G06F3/0689 ,  G06F11/1092 ,  G06F11/2056 ,  G06F2211/1023 ,  H04L67/1097

摘要： A computer storage system is described. A range of volume block numbers (VBNs) is assigned to a volume. A range of storage device block numbers (DBNs) is assigned to each of a plurality of storage devices. A first mapping parameters are created to map a first range of VBN numbers to a first selected range of DBNs using a first portion of a new storage device. A second mapping parameters are created to map a second range of VBN numbers to a second range of DBNs on a second portion of the new storage device.

摘要翻译： 描述了计算机存储系统。 一个音量块编号（VBN）的范围被分配给一个音量。 存储设备块号（DBN）的范围被分配给多个存储设备中的每一个。 创建第一映射参数以使用新存储设备的第一部分将第一范围的VBN号码映射到DBN的第一选定范围。 创建第二映射参数以将第二范围的VBN号映射到新存储设备的第二部分上的第二DBN范围。

公开(公告)号：US20100095060A1

公开(公告)日：2010-04-15

申请号：US12640038

申请日：2009-12-17

申请人： Stephen H. Strange ,  Scott Schoenthal ,  Douglas P. Doucette ,  Srinivasan Viswanathan

发明人： Stephen H. Strange ,  Scott Schoenthal ,  Douglas P. Doucette ,  Srinivasan Viswanathan

IPC分类号： G06F12/00 ,  G06F11/00 ,  G06F11/20

CPC分类号： G06F3/0607 ,  G06F3/0643 ,  G06F3/0647 ,  G06F3/0665 ,  G06F3/0689 ,  G06F11/1092 ,  G06F11/2056 ,  G06F2211/1023 ,  H04L67/1097

摘要： A computer storage system is described. A range of volume block numbers (VBNs) is assigned to a volume. A range of storage device block numbers (DBNs) is assigned to each of a plurality of storage devices. A first mapping parameters are created to map a first range of VBN numbers to a first selected range of DBNs using a first portion of a new storage device. A second mapping parameters are created to map a second range of VBN numbers to a second range of DBNs on a second portion of the new storage device.

摘要翻译： 描述了计算机存储系统。 一个音量块编号（VBN）的范围被分配给一个音量。 存储设备块号（DBN）的范围被分配给多个存储设备中的每一个。 创建第一映射参数以使用新存储设备的第一部分将第一范围的VBN号码映射到DBN的第一选定范围。 创建第二映射参数以将第二范围的VBN号映射到新存储设备的第二部分上的第二DBN范围。

公开(公告)号：US07660966B2

公开(公告)日：2010-02-09

申请号：US11497590

申请日：2006-08-02

申请人： Stephen H. Strange ,  Scott Schoenthal ,  Douglas P. Doucette ,  Srinivasan Viswanathan

发明人： Stephen H. Strange ,  Scott Schoenthal ,  Douglas P. Doucette ,  Srinivasan Viswanathan

IPC分类号： G06F11/07 ,  G06F12/08 ,  G06F12/16

CPC分类号： G06F3/0607 ,  G06F3/0643 ,  G06F3/0647 ,  G06F3/0665 ,  G06F3/0689 ,  G06F11/1092 ,  G06F11/2056 ,  G06F2211/1023 ,  H04L67/1097

摘要： A storage operating system is configured to assign volume block numbers (VBNs) to a volume. The system has a plurality of disks, and each disk of the plurality of disks is assigned disk block numbers (DBNs). A raidmap is configured to map the VBNs to the DBNs of the plurality of physical disks, the mapping for a particular disk stored in a disk label for the particular disk. The disk label for the particular disk is then written to the particular disk.

摘要翻译： 存储操作系统被配置为将卷块号（VBN）分配给卷。 该系统具有多个盘，并且多个盘中的每个盘分配有磁盘块号（DBN）。 raidmap被配置为将VBN映射到多个物理磁盘的DBN，对于特定磁盘的磁盘标签中存储的特定磁盘的映射。 然后将特定磁盘的磁盘标签写入特定磁盘。

公开(公告)号：US07454445B2

公开(公告)日：2008-11-18

申请号：US09932578

申请日：2001-08-17

申请人： Blake Lewis ,  John Edwards ,  Srinivasan Viswanathan

发明人： Blake Lewis ,  John Edwards ,  Srinivasan Viswanathan

IPC分类号： G06F12/00 ,  G06F7/00 ,  G06F15/16

CPC分类号： G06F11/14 ,  G06F11/1435 ,  G06F2201/84 ,  Y10S707/99931 ,  Y10S707/99956

摘要： The invention provides an improved method and apparatus for creating a snapshot of a file system. A “copy-on-write” mechanism is used. 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. 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. A record of which blocks are being used by the snapshot is included in the snapshot itself, allowing effectively instantaneous snapshot creation and deletion. A snapshot can also be deleted instantaneously simply by discarding its root inode.

摘要翻译： 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。 使用“写时复制”机制。 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为止。 每当发生修改时，修改的数据将被复制到新的块，并保存旧的数据。 以这种方式，快照只使用与活动文件系统不同的空间，创建快照所需的工作量很小。 快照中使用哪些块的记录包含在快照本身中，可以有效地即时创建和删除快照。 也可以通过丢弃其根节点来即时删除快照。