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    • 1. 发明授权
    • Intelligent controller accessed through addressable virtual space
    • 智能控制器通过可寻址的虚拟空间进行访问
    • US07167951B2
    • 2007-01-23
    • US10263274
    • 2002-10-02
    • Jerry A. BladesMatthew C. DeweyBruce A. ThompsonDavid J. Van MarenJames M. Wilson
    • Jerry A. BladesMatthew C. DeweyBruce A. ThompsonDavid J. Van MarenJames M. Wilson
    • G06F12/00
    • G06F3/0664G06F3/0607G06F3/0643G06F3/0679G06F12/08
    • Mass storage system controller apparatus receives requests for access to files in a data storage system and manages access to the files in the data storage system, the data storage system having a plurality of storage devices and the requests being addressed to the data storage system as a single virtual storage device having addressable Command Regions allocated to controller commands and addressable Mapped Data Regions allocated for data storage. The apparatus includes a file system to manage access to files in the data storage system, the file system having a processor acting as a Command Region processor and acting as a Mapped Data Region processor. A disk emulator responds as a disk drive device to write/read commands and passes the write/read commands addressed to Command Regions of the virtual storage device to the Command Region processor, the write/read commands addressed to Command Regions containing controller commands for the file system. The Command Region processor responds to controller commands in the write/read commands and processes the controller commands to control files in the data storage system. The disk emulator responds as a disk drive device to write/read commands and passes write/read commands addressed to a Mapped Data Region of the virtual storage device to the Mapped Data Region processor. The Mapped Data Region processor responds to a write/read command with a Mapped Data Region address and transfers data to or from the data storage system for files mapped to the Mapped Data Region address.
    • 大容量存储系统控制器装置接收访问数据存储系统中的文件的请求,并管理对数据存储系统中的文件的访问,数据存储系统具有多个存储装置,并且请求被作为数据存储系统寻址到数据存储系统 单个虚拟存储设备具有分配给控制器命令的可寻址命令区域和分配用于数据存储的可寻址映射数据区域。 该装置包括用于管理数据存储系统中文件访问的文件系统,该文件系统具有用作命令区域处理器的处理器并用作映射数据区域处理器。 磁盘仿真器作为磁盘驱动器设备作为写入/读取命令进行响应,并将寻址到虚拟存储设备的命令区域的写入/读取命令传递到命令区域处理器,写入/读取命令寻址到包含控制器命令的命令区域 文件系统。 命令区域处理器响应写/读命令中的控制器命令,并处理控制器命令以控制数据存储系统中的文件。 磁盘仿真器作为磁盘驱动器设备进行响应,以写/读命令,并将寻址到虚拟存储设备的映射数据区的写/读命令传递给映射数据区处理器。 映射数据区域处理器使用映射数据区域地址响应写入/读取命令,并将数据传输到数据存储系统或从映射到映射到映射数据区域地址的文件传输数据。
    • 2. 发明授权
    • Intelligent controller accessed through addressable virtual space
    • 智能控制器通过可寻址的虚拟空间进行访问
    • US06493811B1
    • 2002-12-10
    • US09233979
    • 1999-01-20
    • Jerry A. BladesMatthew C. DeweyBruce A. ThompsonDavid J. Van MarenJames M. Wilson
    • Jerry A. BladesMatthew C. DeweyBruce A. ThompsonDavid J. Van MarenJames M. Wilson
    • G06F1200
    • G06F3/0664G06F3/0607G06F3/0643G06F3/0679G06F12/08
    • File operations on files in a peripheral system are controlled by an intelligent controller with a file processor. The files are accessed as if the intelligent controller were an addressable virtual storage space. This is accomplished first by communicating controller commands for the intelligent controller through read/write commands addressed to a Command Region of a virtual storage device. The controller commands set up a Mapped Data Region in the virtual storage device for use in controlling data transfer operations to and from the peripheral system. With the Mapped Data Regions set up, blocks of data are transferred between the host and the intelligent controller in response to read/write commands addressed to the Mapped Data Region of the virtual storage device. In an additional feature of the invention file operations are communicated between host and controller through a device driver at the host and a device emulator at the intelligent controller. If the address in the device write/read command is pointing to the Command Region of the virtual storage device, a Command Region process interprets and implements the controller operation required by the controller command embedded in the device write/read command. One of these controller commands causes the Command Region processor to map a requested file to a Mapped Data Region in the virtual storage device. If the address detected by the detecting operation is in a Mapped Data Region, a Mapped Data Region process is called. The Mapped Data Region process reads or writes requested data of a file mapped to the Mapped Data Region addressed by the read/write command. This mapped file read or write is accomplished as a transfer of data over a data path separate from a control path. In an additional feature of the invention, the data transfer between host system and intelligent controller is accomplished by performing a direct memory access transfer of data.
    • 对外围系统中文件的文件操作由具有文件处理器的智能控制器控制。 访问文件,就像智能​​控制器是可寻址的虚拟存储空间一样。 首先通过通过寻址到虚拟存储设备的命令区域的读/写命令来传达智能控制器的控制器命令来实现。 控制器命令在虚拟存储设备中设置映射数据区,用于控制到外围系统的数据传输操作。 在映射的数据区设置时,响应于寻址到虚拟存储设备的映射数据区的读/写命令,在主机和智能控制器之间传送数据块。在本发明的附加特征中,传送文件操作 主机和控制器之间通过主机的设备驱动程序和智能控制器的设备仿真器。 如果设备写入/读取命令中的地址指向虚拟存储设备的命令区域,命令区域进程将解释并实现嵌入在设备写/读命令中的控制器命令所需的控制器操作。 这些控制器命令之一导致命令区域处理器将所请求的文件映射到虚拟存储设备中的映射数据区域。 如果由检测操作检测到的地址在映射数据区域中,则调用映射数据区域处理。 映射数据区域进程读取或写入映射到由读/写命令寻址的映射数据区域的文件的请求数据。 该映射文件读取或写入是通过与控制路径分离的数据路径的数据传输来实现的。 在本发明的附加特征中,通过执行数据的直接存储器访问传输来实现主机系统和智能控制器之间的数据传输。