Data logging for hard disk data storage systems
    1.
    发明授权
    Data logging for hard disk data storage systems 失效
    硬盘数据存储系统的数据记录

    公开(公告)号:US5297258A

    公开(公告)日:1994-03-22

    申请号:US795682

    申请日:1991-11-21

    IPC分类号: G06F3/06 G06F11/10 G06F13/00

    摘要: A data log for use with conventional hard disk subsystems or other data storage subsystems provides a system to minimize delays caused in a computer system due to the input/output systems, such as hard disks. The data log is preferably one or more hard disks, or any other non-volatile data storage device. Preferably, when the operating system requests a write to the hard disk subsystem, a hard disk controller directs the data to the data log rather than the hard disks. Then, when I/O requests are at a lull, the hard disk controller moves the data from the data log to the hard disk subsystem. Because the data is written to the data log sequentially, the hard disk controller completes the write operation quickly. This minimizes any bottleneck created while the system waits for the completion of the write operation.

    摘要翻译: 与常规硬盘子系统或其他数据存储子系统一起使用的数据日志提供了一种系统,以最小化由于输入/输出系统(例如硬盘)导致的计算机系统中的延迟。 数据记录优选地是一个或多个硬盘或任何其它非易失性数据存储设备。 优选地,当操作系统请求对硬盘子系统的写入时,硬盘控制器将数据引导到数据日志而不是硬盘。 然后,当I / O请求暂停时,硬盘控制器将数据从数据日志移动到硬盘子系统。 由于数据顺序写入数据日志,硬盘控制器会迅速完成写操作。 这最小化了系统等待完成写入操作时创建的任何瓶颈。

    Method for disk restriping during system operation
    2.
    发明授权
    Method for disk restriping during system operation 失效
    系统运行过程中磁盘重新排列的方法

    公开(公告)号:US5502836A

    公开(公告)日:1996-03-26

    申请号:US504144

    申请日:1995-07-19

    摘要: A method for restriping a striped disk array in a computer system without requiring the removal of the system from normal operation provides an efficient method to expand the disk array and incorporate the new storage into the striping scheme. When the operating system is not requesting access to the hard disk subsystem, the data is repositioned. The data on the array need not be backed-up onto alternate media before the array is expanded. Once new storage space is installed, the data is repositioned from disk to disk under the control of a disk controller until a stripe of the new array is expanded. Pointers stored in non-volatile memory maintain the location of the next free location and the next data block to be repositioned. The pointers are also used by the disk controller to locate the files during the array expansion process. The process is repeated until all of the data is relocated in the expanded array. After the relocation is complete, empty storage at the end of each disk remains. Once a new driver is installed to properly report the new volume to the operating system, the controller reports this new space as a separate volume of available memory storage to the operating system.

    摘要翻译: 一种用于在计算机系统中重新划分条带磁盘阵列的方法,而不需要从正常操作中移除系统提供了扩展磁盘阵列并将新存储器并入条带化方案的有效方法。 当操作系统不请求访问硬盘子系统时,重新定位数据。 在阵列展开之前,阵列上的数据不需要备份到备用介质上。 一旦安装了新的存储空间,数据将在磁盘控制器的控制下从磁盘重新定位到磁盘,直到新阵列的条带被扩展为止。 存储在非易失性存储器中的指针保持下一个空闲位置和要重新定位的下一个数据块的位置。 磁盘控制器还可以使用指针在阵列扩展过程中定位文件。 重复该过程,直到所有数据被重新定位在扩展的数组中。 迁移完成后,每个磁盘末端的空闲存储器将保留。 一旦安装了新的驱动程序以将新卷正确地报告给操作系统,则控制器将这个新空间作为单独的可用内存存储空间报告给操作系统。

    Auxiliary loading dock ramp
    3.
    发明授权
    Auxiliary loading dock ramp 失效
    辅助装卸码头斜坡

    公开(公告)号:US4606090A

    公开(公告)日:1986-08-19

    申请号:US618878

    申请日:1984-06-08

    申请人: Robert J. Beard

    发明人: Robert J. Beard

    IPC分类号: B65G69/28 E01D15/00

    CPC分类号: B65G69/30

    摘要: An auxiliary loading dock ramp is provided which can be securely locked to a conventional ramp so as to increase the overall length of the ramp surfaces thereby lessening the degree of incline of the ramps between a loading dock and a truck or railroad car. The auxiliary loading dock ramp includes legs on the forward end thereof and support means on the rearward end thereof to maintain the ramp in an elevated position above the surface of the loading dock, and channel members on the underside of the deck of the ramp to receive the forks of a pallet jack employed in moving the auxiliary ramp into position. A pair of ears on each side of the auxiliary ramp adjacent the rearward end thereof are received in slots in the forward end of a conventional ramp such that the forward end of the conventional ramp overlappingly engages the rearward end of the auxiliary ramp to provide an elongated deck surface over which loads may be transported between the loading dock and the truck or railroad car.

    摘要翻译: 提供辅助装载基座斜坡,其可以牢固地锁定到常规斜坡,以便增加斜坡表面的总长度,从而减小装载台与卡车或铁路车辆之间的斜坡倾斜度。 辅助装载基座斜坡包括其前端上的腿和在其后端的支撑装置,以将斜坡保持在装载基座的表面上方的升高位置,并且斜坡的甲板的下侧上的通道构件接收 用于将辅助坡道移动到位的托盘千斤顶的叉。 在辅助斜坡的后端附近的一侧的一对耳朵被容纳在常规斜坡的前端的狭槽中,使得常规斜面的前端重叠地接合辅助斜坡的后端,以提供细长的 甲板表面可以在装载基座和卡车或铁路车辆之间运输负载。