Method and apparatus for cascading data through redundant data storage units
    1.
    发明授权
    Method and apparatus for cascading data through redundant data storage units 有权
    用于通过冗余数据存储单元级联数据的方法和装置

    公开(公告)号:US07313578B2

    公开(公告)日:2007-12-25

    申请号:US10752256

    申请日:2004-01-06

    IPC分类号: G06F17/30

    摘要: A data storage facility for transferring data from a data altering apparatus, such as a production data processing site to a remote data receiving site. The data storage facility includes a first data store for recording each change in the data generated by the data altering apparatus. A register set records each change on a track-by-track basis. A second data store has first and second operating modes. During a first operating mode the second data store becomes a mirror of the first data store. During a second operating mode the second data store ceases to act as a mirror and becomes a source for a transfer of data to the data receiving site. Only information that has been altered, i.e., specific tracks that have been altered, are transferred during successive operations in the second operating mode. Commands from the local production site initiate the transfers between the first and second operating modes.

    摘要翻译: 一种数据存储设备,用于将数据从诸如生产数据处理站点的数据改变设备传送到远程数据接收站点。 数据存储设施包括用于记录由数据改变装置生成的数据的每个改变的第一数据存储器。 一个寄存器集在逐个轨道上记录每个变化。 第二数据存储具有第一和第二操作模式。 在第一操作模式期间,第二数据存储变为第一数据存储的镜像。 在第二操作模式期间,第二数据存储器停止作为镜像,并且成为用于将数据传送到数据接收站点的源。 仅在第二操作模式中的连续操作期间传送已被改变的信息,即已被改变的特定轨道。 来自本地生产现场的命令启动第一和第二种操作模式之间的转移。

    Apparatus and method for differential backup and restoration of data in a computer storage system
    4.
    发明授权
    Apparatus and method for differential backup and restoration of data in a computer storage system 有权
    计算机存储系统中数据差异备份和恢复的装置和方法

    公开(公告)号:US06397308B1

    公开(公告)日:2002-05-28

    申请号:US09224897

    申请日:1998-12-31

    IPC分类号: G06F1200

    摘要: Method and apparatus for generating partial backups of logical objects in a computer storage system are disclosed. Changed data blocks are identified and stored as differential abstract block sets. The differential abstract block set may include data blocks in any order and metadata identifying the relative position of the data block in the logical object. The invention includes methods for formatting updated backups using the differential backups.

    摘要翻译: 公开了一种用于在计算机存储系统中产生逻辑对象的部分备份的方法和装置。 更改的数据块被识别并存储为差分抽象块集。 差分抽象块集可以包括任何顺序的数据块和标识数据块在逻辑对象中的相对位置的元数据。 本发明包括使用差异备份格式化更新的备份的方法。

    GRATING INSCRIBING IN OPTICAL WAVEGUIDES
    5.
    发明申请
    GRATING INSCRIBING IN OPTICAL WAVEGUIDES 审中-公开
    光刻波形中的刻蚀

    公开(公告)号:US20120106893A1

    公开(公告)日:2012-05-03

    申请号:US13286335

    申请日:2011-11-01

    IPC分类号: G02B6/34 C03B37/10

    CPC分类号: G02B6/02147 G02B6/02133

    摘要: There is described herein a method and system for inscribing gratings in optical waveguides. The waveguides may be hydrogen-free, germanium-free, low germanium, low hydrogen, and a combination thereof. Such gratings written in hydrogen-free fibers are suitable for sensor applications in which the use of hydrogen for photosensitizing fibers is undesirable owing to their increased sensitivity to nuclear radiation. The grating are formed by at least one pulse having a wavelength comprised between about 203 nm and about 240 nm. The laser source may be a Continuous Wave (CW) laser source or a pulsed laser source generating at least one pulse having a width in the order of nanoseconds (109).

    摘要翻译: 这里描述了一种在光波导中刻录光栅的方法和系统。 波导可以是无氢的,无锗的,低锗的,低氢的,以及它们的组合。 这种用无氢纤维编写的光栅适用于传感器应用,其中使用氢气来感光纤维是不希望的,因为它们对核辐射的敏感度增加。 光栅由至少一个具有在约203nm和约240nm之间的波长的脉冲形成。 激光源可以是连续波(CW)激光源或脉冲激光源,其产生具有大约数毫安(109)的宽度的至少一个脉冲。

    Data processing method and apparatus for enabling independent access to replicated data
    7.
    发明授权
    Data processing method and apparatus for enabling independent access to replicated data 有权
    用于实现对复制数据的独立访问的数据处理方法和装置

    公开(公告)号:US06401178B1

    公开(公告)日:2002-06-04

    申请号:US09471848

    申请日:1999-12-23

    IPC分类号: G06F1200

    CPC分类号: G06F11/1451 G06F11/1469

    摘要: A data storage facility that allows data on a standard device to be replicated to other storage devices for independent and concurrent access. The standard device includes first and second tables for monitoring the operation of the standard device. The other storage device that receive the copies have tables that identify their status. The system utilizes these tables in various combinations to enable multiple copies to be altered and updated.

    摘要翻译: 允许将标准设备上的数据复制到其他存储设备进行独立和并发访问的数据存储设施。 标准设备包括用于监视标准设备的操作的第一和第二表。 接收副本的其他存储设备具有标识其状态的表。 系统以各种组合方式使用这些表格,以便更改和更新多个副本。

    Data recovery method and apparatus
    8.
    发明授权
    Data recovery method and apparatus 有权
    数据恢复方法和装置

    公开(公告)号:US06968347B2

    公开(公告)日:2005-11-22

    申请号:US09796078

    申请日:2001-02-28

    申请人: Mathieu Gagne

    发明人: Mathieu Gagne

    IPC分类号: G06F7/00 G06F17/30

    摘要: A method and apparatus for data recovery in a system involving a first data store acting as a standard volume and a physical moving mirror data store that operates in a first mode to be synchronized and in a second, isolated mode. A third physical mirror data store synchronizes with the second data store in its second operating mode. In response to a command to establish a third or reverse split operating mode, the data to be transferred in response to that command is identified. Copying of the identified data then commences from the third data store to the second data store to recover any data that may have been corrupted in the second data store.

    摘要翻译: 一种用于涉及作为标准卷的第一数据存储器的系统中的数据恢复的方法和装置,以及在第一模式下操作以在第二隔离模式中操作的物理移动镜像数据存储器。 第三物理镜数据存储器在其第二操作模式下与第二数据存储器同步。 响应于建立第三或反向拆分操作模式的命令,识别响应于该命令要传送的数据。 所识别的数据的复制然后从第三数据存储开始到第二数据存储,以恢复在第二数据存储中可能被破坏的任何数据。

    Method and apparatus for cascading data through redundant data storage units
    9.
    发明授权
    Method and apparatus for cascading data through redundant data storage units 有权
    用于通过冗余数据存储单元级联数据的方法和装置

    公开(公告)号:US06209002B1

    公开(公告)日:2001-03-27

    申请号:US09251812

    申请日:1999-02-17

    IPC分类号: G06F1730

    摘要: A data storage facility for transferring data from a data altering apparatus, such as a production data processing site to a remote data receiving site. The data storage facility includes a first data store for recording each change in the data generated by the data altering apparatus. A register set records each change on a track-by-track basis. A second data store has first and second operating modes. During a first operating mode the second data store becomes a mirror of the first data store. During a second operating mode the second data store ceases to act as a mirror and becomes a source for a transfer of data to the data receiving site. Only information that has been altered, i.e., specific tracks that have been altered, are transferred during successive operations in the second operating mode. Commands from the local production site initiate the transfers between the first and second operating modes.

    摘要翻译: 一种数据存储设备,用于将数据从诸如生产数据处理站点的数据改变设备传送到远程数据接收站点。 数据存储设施包括用于记录由数据改变装置生成的数据的每个改变的第一数据存储器。 一个寄存器集在逐个轨道上记录每个变化。 第二数据存储具有第一和第二操作模式。 在第一操作模式期间,第二数据存储变为第一数据存储的镜像。 在第二操作模式期间,第二数据存储器停止作为镜像,并且成为用于将数据传送到数据接收站点的源。 仅在第二操作模式中的连续操作期间传送已被改变的信息,即已被改变的特定轨道。 来自本地生产现场的命令启动第一和第二种操作模式之间的转移。

    Data recovery method and apparatus
    10.
    发明授权
    Data recovery method and apparatus 有权
    数据恢复方法和装置

    公开(公告)号:US06742138B1

    公开(公告)日:2004-05-25

    申请号:US09879347

    申请日:2001-06-12

    IPC分类号: G06F1100

    摘要: A method and apparatus for data recovery in a system involving a first data store acting as a standard device and a physical moving mirror data store that operates as moving mirror with a first mode to be synchronized and in a second, isolated mode. In response to a command to establish a third or protected restore operating mode, the data to be transferred in response to that command is identified. A restoration procedure copies data from the second data store to the first store to recover any data that may have been corrupted in the second data store. An update procedure acts on the restored data concurrently with the restoration procedure.

    摘要翻译: 一种用于在系统中进行数据恢复的方法和装置,该系统涉及作为标准装置的第一数据存储器和作为具有待同步的第一模式和第二隔离模式的移动反射镜的物理移动镜像数据存储器。 响应于建立第三或受保护的恢复操作模式的命令,识别响应于该命令要传送的数据。 恢复过程将数据从第二数据存储复制到第一存储以恢复在第二数据存储中可能被破坏的任何数据。 更新过程与恢复过程同时对恢复的数据进行操作。