Apparatus and method for file level striping
    2.
    发明授权
    Apparatus and method for file level striping 有权
    文件级别条带的装置和方法

    公开(公告)号:US07197598B2

    公开(公告)日:2007-03-27

    申请号:US10621461

    申请日:2003-07-18

    IPC分类号: G06F12/00

    摘要: A file level striping method adds an option for indicating whether or not to support file level striping to a file creation interface in a file system, extends an inode structure to include a last disk ID field, initializes the last disk ID when the file is created in the file system, allocates a physical block based on the last disk ID when the physical block allocation is requested at the time of file I/O request in the file system, and modifies the last disk ID value to reflect the physical block allocation made by a volume manager. An apparatus using the file level striping method includes a number of disks for storing information actually, the volume manager for logically grouping a number of disks and a file system for creating files on said logical volume and performing I/O operations.

    摘要翻译: 文件级条带化方法添加了一个选项,指示是否支持文件级别条带化到文件系统中的文件创建界面,扩展了一个inode结构以包含最后一个磁盘ID字段,在创建文件时初始化最后一个磁盘ID 在文件系统中,当在文件系统中的文件I / O请求时请求物理块分配时,基于最后的磁盘ID分配物理块,并修改最后一个磁盘ID值以反映物理块分配 由音量经理。 使用文件级条带化方法的装置包括实际存储信息的多个磁盘,用于在多个磁盘上逻辑分组的卷管理器和用于在所述逻辑卷上创建文件的文件系统以及执行I / O操作。

    Raid system and mapping method thereof
    3.
    发明授权
    Raid system and mapping method thereof 有权
    Raid系统及其映射方法

    公开(公告)号:US06901478B2

    公开(公告)日:2005-05-31

    申请号:US10232747

    申请日:2002-09-03

    IPC分类号: G06F3/06 G06F12/00 G06F12/08

    摘要: A system having RAID levels includes a storage medium, a memory and a CPU. The storage medium has at least two disks. The memory stores a striping zone information table of total disks in which a physical address of data recorded in a disk of the storage medium is converted into a logic address. The CPU modifies a striping zone information table stored in the memory in case a new disk is added to the storage medium, stores the modified striping zone information table in the memory, converts a logic address of data to be written/read out from the stored table into a physical address in response to the disk writing/reading instructions, searches positions of a corresponding disk D and a physical block B and controls writing or reading out data.

    摘要翻译: 具有RAID级别的系统包括存储介质,存储器和CPU。 存储介质具有至少两个盘。 存储器存储总磁盘的条带区信息表,其中记录在存储介质的盘中的数据的物理地址被转换成逻辑地址。 如果将新的磁盘添加到存储介质中,则CPU修改存储在存储器中的条带区信息表,将修改的条带区信息表存储在存储器中,将存储的数据的逻辑地址转换为要写入/读出的数据 响应于磁盘写入/读取指令将表转换成物理地址,搜索对应的盘D和物理块B的位置,并控制写入或读出数据。