公开(公告)号：US06170018A

公开(公告)日：2001-01-02

申请号：US08563155

申请日：1995-11-27

申请人： James J. Voll ,  Graham Hamilton ,  Panagiotis Kougiouris ,  Steven R. Kleiman

发明人： James J. Voll ,  Graham Hamilton ,  Panagiotis Kougiouris ,  Steven R. Kleiman

IPC分类号： G06F1563

CPC分类号： G06F9/547 ,  Y10S707/99938

摘要： Doors are implemented in an existing operating system by using a novel adaptation of existing data structures and procedures which represent and control data files of the operating system. A door is represented by a file descriptor and is managed by existing mechanisms of an operating system, such as the Unix operating system, which are also used to manage files. A door is represented by a door node, which is a novel extension of the conventional vnode structure which in turn is used in conventional operating systems to represent the state of a computer resource, e.g., a data file. A door node is adapted such that most conventional file access and control procedures, e.g., procedures open( ) and close( ), can be used to access and control door with minimal adaptation. A door node is formed by appending fields which are specific to a door node's representation of the state of a door to fields of the door node which are analogous to the fields of a vnode, which represents the state of a resource and which has a conventional structure. Thus, the fields of a door node which precede the fields specific to the representation of the state of a door are of the size, location, and format of analogous fields in a conventional vnode. A client process obtains a file descriptor which identifies a door by supplying the name of the door to the operating system.

摘要翻译： 门通过使用现有数据结构和程序的新颖改编来实现现有的操作系​​统，这些数据结构和过程表示和控制操作系统的数据文件。 门由文件描述符表示，并由操作系统的现有机制（如Unix操作系统）进行管理，这些操作系统也用于管理文件。 门由门节点表示，门节点是传统的vnode结构的新颖的扩展，传统的vnode结构又在常规的操作系统中用于表示计算机资源（例如数据文件）的状态。 门节点被适配成使得大多数传统的文件访问和控制过程，例如程序open（）和close（）可以用于以最小的适应来访问和控制门。 门节点是通过将门节点对门状态的表示特定的字段附加到门节点的字段，其类似于表示资源的状态的vnode的字段，并且具有常规 结构体。 因此，在特定于门状态表示的场之前的门节点的场是具有常规vnode中的类似场的大小，位置和格式。 客户端进程通过向操作系统提供门的名称来获得识别门的文件描述符。

公开(公告)号：US5953522A

公开(公告)日：1999-09-14

申请号：US675360

申请日：1996-07-01

申请人： Kevin C. Fox ,  Timothy P. Marsland ,  Michael L. Federwisch ,  James J. Voll ,  Madhusudhan Talluri

发明人： Kevin C. Fox ,  Timothy P. Marsland ,  Michael L. Federwisch ,  James J. Voll ,  Madhusudhan Talluri

IPC分类号： G06F17/30 ,  G06F12/08

CPC分类号： G06F17/30067 ,  Y10S707/99953 ,  Y10S707/99956

摘要： A devtmp device driver provides the functionality of temporary files by representing a virtual device and including the virtual device among several devices within which a file system can store files. Rather than storing data in and retrieving data from a physical device, the devtmp device driver stores data in and retrieves data from anonymous storage through a swap file system which manages anonymous storage for a virtual memory system. A file system uses the devtmp device driver in the same manner the file system uses conventional device drivers which store data in and retrieve data from secondary storage devices. Since the devtmp device driver represents a virtual device whose data are stored in anonymous storage managed by the swap file system, the total amount of storage available for storing data of temporary files is shared among the various components of a computer process to successfully satisfy various needs of various computer processes. Temporary files can be accessed through a main file system, e.g., the UNIX file system, using a delayed-write-mode. In the delayed-write mode, the file system does not write metadata of a device to secondary storage and writes substantive data of files stored on the device only when insufficient primary storage is available to store the substantive data. Accordingly, temporary files are stored in primary storage so long as primary storage is available for such temporary files and are stored in, or moved to, secondary storage when primary storage is unavailable.

摘要翻译： devtmp设备驱动程序通过表示虚拟设备并将虚拟设备包括在文件系统可以存储文件的多个设备之间来提供临时文件的功能。 devtmp设备驱动程序不是将数据存储在物理设备中并从物理设备中检索数据，而是通过管理虚拟内存系统的匿名存储的交换文件系统将数据存储在匿名存储器中并从中获取数据。 文件系统以与文件系统使用常规设备驱动程序相同的方式使用devtmp设备驱动程序，该驱动程序将数据存储在备用存储设备中并从中恢复数据。 由于devtmp设备驱动程序表示其数据存储在由交换文件系统管理的匿名存储器中的虚拟设备，所以可用于存储临时文件数据的可用存储空间的总量在计算机进程的各个组件之间共享以成功地满足各种需求 的各种计算机进程。 临时文件可以通过主文件系统访问，例如UNIX文件系统，使用延迟写入模式。 在延迟写入模式下，文件系统不会将设备的元数据写入辅助存储，并且只有在主存储空间不足以存储实质数据时，才能写入存储在设备上的文件的实质数据。 因此，只要主存储可用于这样的临时文件，并且当主存储不可用时存储在或存储在辅助存储器中，临时文件被存储在主存储器中。

公开(公告)号：US09274714B2

公开(公告)日：2016-03-01

申请号：US12259145

申请日：2008-10-27

申请人： Shailaja Kamila ,  James J. Voll ,  Ameet Deulgaonkar ,  Anurag Palsule ,  Ramanathan S. Padinjarel

发明人： Shailaja Kamila ,  James J. Voll ,  Ameet Deulgaonkar ,  Anurag Palsule ,  Ramanathan S. Padinjarel

IPC分类号： G06F3/06 ,  H04L29/08 ,  H04L12/26 ,  G06F11/34

CPC分类号： G06F3/0629 ,  G06F3/0605 ,  G06F3/0689 ,  G06F11/3409 ,  G06F11/3485 ,  G06F2201/81 ,  H04L43/0817 ,  H04L43/16 ,  H04L67/1097

摘要： A system for managing configuration of a storage network having multiple storage resources is disclosed. The system uses a storage management policy to set parameters for detecting storage resource problems in the storage network. The system monitors the storage resources in the storage network based on the storage management policy. Based on the monitoring, the system detects limited storage resource conditions, and identifies one or more potential solutions to the condition. After identifying potential solutions, the system simulates effects on the storage resources of implementing individual solutions. Based on the simulations, the system then implements one or more selected solutions. These solutions may be selected automatically or by a user.

摘要翻译： 公开了一种用于管理具有多个存储资源的存储网络的配置的系统。 系统使用存储管理策略设置存储网络存储资源问题检测参数。 系统根据存储管理策略对存储网络中的存储资源进行监控。 基于监控，系统检测有限的存储资源条件，并识别一个或多个潜在的解决方案。 在识别出潜在的解决方案之后，系统会模拟对实现个别解决方案的存储资源的影响。 基于模拟，系统然后实现一个或多个选择的解决方案。 这些解决方案可以自动或由用户选择。

公开(公告)号：US08166257B1

公开(公告)日：2012-04-24

申请号：US12019574

申请日：2008-01-24

申请人： James H. Holl, II ,  James J. Voll

发明人： James H. Holl, II ,  James J. Voll

IPC分类号： G06F13/00 ,  G06F13/28

CPC分类号： G06F13/28

摘要： Methods and systems for mapping data-management requirements to the provisioning of a data storage system to conform to a set of user-defined data-management policies. A conformance engine with storage system awareness translates the set of data-management policies to a corresponding set of storage-provisioning policies and provisions the resources of the storage system thereby to conform the storage system to the data-management policies. A conformance checker continuously and automatically compares the provisioning of the storage system resources to the provisioning required to meet the data-management policies. When nonconformance is detected, the conformance engine automatically re-provisions the available resources of the storage system to conform the storage system to the data management policies.

摘要翻译： 将数据管理要求映射到数据存储系统的配置以符合一组用户定义的数据管理策略的方法和系统。 具有存储系统意识的一致性引擎将数据管理策略集合转换为相应的一组存储供应策略，并提供存储系统的资源，从而使存储系统符合数据管理策略。 一致性检查程序会持续自动地将存储系统资源的配置与满足数据管理策略所需的配置进行比较。 当检测到不符合时，一致性引擎自动重新设置存储系统的可用资源，以使存储系统符合数据管理策略。

公开(公告)号：US20100106933A1

公开(公告)日：2010-04-29

申请号：US12259145

申请日：2008-10-27

申请人： Shailaja Kamila ,  James J. Voll ,  Ameet Deulgaonkar ,  Anurag Palsule ,  Ramanathan S. Padinjarel

发明人： Shailaja Kamila ,  James J. Voll ,  Ameet Deulgaonkar ,  Anurag Palsule ,  Ramanathan S. Padinjarel

IPC分类号： G06F12/02 ,  G06G7/62 ,  G06F15/173 ,  G06F12/00

CPC分类号： G06F3/0629 ,  G06F3/0605 ,  G06F3/0689 ,  G06F11/3409 ,  G06F11/3485 ,  G06F2201/81 ,  H04L43/0817 ,  H04L43/16 ,  H04L67/1097

摘要： A system for managing configuration of a storage network having multiple storage resources is disclosed. The system uses a storage management policy to set parameters for detecting storage resource problems in the storage network. The system monitors the storage resources in the storage network based on the storage management policy. Based on the monitoring, the system detects limited storage resource conditions, and identifies one or more potential solutions to the condition. After identifying potential solutions, the system simulates effects on the storage resources of implementing individual solutions. Based on the simulations, the system then implements one or more selected solutions. These solutions may be selected automatically or by a user.

摘要翻译： 公开了一种用于管理具有多个存储资源的存储网络的配置的系统。 系统使用存储管理策略设置存储网络存储资源问题检测参数。 系统根据存储管理策略对存储网络中的存储资源进行监控。 基于监控，系统检测有限的存储资源条件，并识别一个或多个潜在的解决方案。 在识别出潜在的解决方案之后，系统会模拟对实现个别解决方案的存储资源的影响。 基于模拟，系统然后实现一个或多个选定的解决方案。 这些解决方案可以自动或由用户选择。

公开(公告)号：US07200603B1

公开(公告)日：2007-04-03

申请号：US10755020

申请日：2004-01-08

申请人： David Hitz ,  Mehul S. Shah ,  Daniel W. Ting ,  James J. Voll

发明人： David Hitz ,  Mehul S. Shah ,  Daniel W. Ting ,  James J. Voll

IPC分类号： G06F17/00 ,  G06F17/30 ,  G06F13/12 ,  G06K9/36 ,  H04K1/00

CPC分类号： G06F11/1451 ,  Y10S707/99931 ,  Y10S707/99942 ,  Y10S707/99945 ,  Y10S707/99953

摘要： In a technique for compressing data, a data storage server receives a set of data, which includes a first number of subsets. The storage server defines a number of compression groups for the set of data, each compression group including multiple entries, each entry containing a pointer to a different subset of the set of data. At least part of the set of data is then compressed into a smaller number of subsets. For each of the subsets which does not contain compressed data after the compression, a predetermined value is stored in the corresponding entry of the corresponding compression group, to indicate that corresponding data is compressed and represented elsewhere in the compression group. The predetermined value may also indicate which compression algorithm was used to compress the data.

摘要翻译： 在压缩数据的技术中，数据存储服务器接收包括第一数量子集的一组数据。 存储服务器为该组数据定义多个压缩组，每个压缩组包括多个条目，每个条目包含指向该组数据的不同子集的指针。 然后将该组数据的至少一部分压缩成较少数量的子集。 对于在压缩之后不包含压缩数据的每个子集，在相应的压缩组的相应条目中存储预定值，以指示对应的数据被压缩并在压缩组的别处表示。 预定值还可以指示哪种压缩算法用于压缩数据。