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    Method for writing continuous arrays of stripes in raid storage system
    2.
    发明专利
    Method for writing continuous arrays of stripes in raid storage system 审中-公开
    在RAID存储系统中写入条带连续阵列的方法

    公开(公告)号：JP2003296038A

    公开(公告)日：2003-10-17

    申请号：JP2003080010

    申请日：2003-03-24

    Applicant: Network Appliance Inc ,  ネットワーク・アプライアンス・インコーポレイテッド

    Inventor： KLEIMAN STEVEN R ,  SUNDARAM RAJESH ,  DOUCETTE DOUGLAS P ,  STRANGE STEPHEN H ,  VISWANATHAN SRINIVASAN

    IPC: G06F3/06 ,  G06F11/10

    CPC classification number: G06F3/0613 ,  G06F3/0643 ,  G06F3/0655 ,  G06F3/0689 ,  G06F11/1076

    Abstract: PROBLEM TO BE SOLVED: To provide a method for controlling storage of data in a plurality of storage devices, for example, in a RAID array. SOLUTION: This method includes receiving a plurality of write requests associated with data and buffering the write requests. A file system defines a group of storage blocks, responsive to disk topology information. The group includes a plurality of storage blocks in each of the plurality of storage devices. Each data block of the data to be written is associated with a respective one of the storage blocks, for transmitting the association to the plurality of storage devices. COPYRIGHT: (C)2004,JPO

    Abstract translation: 要解决的问题：提供一种用于控制例如在RAID阵列中的多个存储设备中的数据存储的方法。 解决方案：该方法包括接收与数据相关联的多个写入请求并缓冲写入请求。 文件系统根据磁盘拓扑信息定义一组存储块。 该组包括多个存储装置中的每一个中的多个存储块。 要写入的数据的每个数据块与相应的一个存储块相关联，用于将关联发送到多个存储设备。 版权所有（C）2004，JPO

    3.
    发明专利
    未知

    公开(公告)号：DE60129025T2

    公开(公告)日：2008-02-21

    申请号：DE60129025

    申请日：2001-08-17

    Applicant: NETWORK APPLIANCE INC

    Inventor： DOUCETTE DOUGLAS P ,  LEWIS BLAKE ,  EDWARDS JOHN K

    IPC: G06F3/06 ,  G06F17/30

    Abstract: A file system determines the relative vacancy of a collection of storage blocks, i.e., an “allocation area”. This is accomplished by recording an array of numbers, each of which describes the vacancy of a collection of storage blocks. The file system examines these numbers when attempting to record file blocks in relatively contiguous areas on a storage medium, such as a disk. When a request to write to disk occurs, the system determines the average vacancy of all of the allocation areas and queries the allocation areas for individual vacancy rates. The system preferably writes file blocks to the allocation areas that are above a threshold related to the average storage block vacancy of the file system.

    4.
    发明专利
    未知

    公开(公告)号：DE60129025D1

    公开(公告)日：2007-08-02

    申请号：DE60129025

    申请日：2001-08-17

    Applicant: NETWORK APPLIANCE INC

    Inventor： DOUCETTE DOUGLAS P ,  LEWIS BLAKE ,  EDWARDS JOHN K

    IPC: G06F3/06 ,  G06F17/30

    Abstract: A file system determines the relative vacancy of a collection of storage blocks, i.e., an “allocation area”. This is accomplished by recording an array of numbers, each of which describes the vacancy of a collection of storage blocks. The file system examines these numbers when attempting to record file blocks in relatively contiguous areas on a storage medium, such as a disk. When a request to write to disk occurs, the system determines the average vacancy of all of the allocation areas and queries the allocation areas for individual vacancy rates. The system preferably writes file blocks to the allocation areas that are above a threshold related to the average storage block vacancy of the file system.

    IMPROVED SPACE ALLOCATION IN A WRITE ANYWHERE FILE SYSTEM
    5.
    发明申请
    IMPROVED SPACE ALLOCATION IN A WRITE ANYWHERE FILE SYSTEM 审中-公开
    在任何文件系统中改进空间分配

    公开(公告)号：WO0217057A3

    公开(公告)日：2003-03-20

    申请号：PCT/US0125822

    申请日：2001-08-17

    Applicant: NETWORK APPLIANCE INC

    Inventor： DOUCETTE DOUGLAS P ,  LEWIS BLAKE ,  EDWARDS JOHN K

    IPC: G06F3/06 ,  G06F17/30 ,  G06F11/14 ,  G06F12/02

    CPC classification number: G06F3/0605 ,  G06F3/0608 ,  G06F3/0631 ,  G06F3/0643 ,  G06F3/0644 ,  G06F3/0689 ,  G06F17/30067 ,  Y10S707/99943 ,  Y10S707/99952 ,  Y10S707/99953 ,  Y10S707/99956

    Abstract: The invention provides a method and system for improving data access of a reliable file system. In a first aspect of the invention, the file system determines the relative vacancy of a collection of storage blocks, herein called an "allocation area". This is accomplished by recording an array of binary numbers. Each binary number in the array describes the vacancy of a collection of storage blocks. The file system examines these binary numbers when attempting to record file blocks in relatively contiguous areas on a storage medium, such as a hard disk. When a request to write to disk occurs, the system determines the average vacancy of all the allocation areas and queries the allocation areas for individual vacancy rates such as sequentially. The system preferably writes file blocks to the allocation areas that are above a threshold related to the average storage block vacancy of the file system. If the file in the request to write is larger than the selected allocation area, the next allocation area above the threshold is preferably used to write the remaining blocks of the file.

    Abstract translation: 本发明提供了一种用于改善可靠文件系统的数据访问的方法和系统。 在本发明的第一方面，文件系统确定存储块集合的相对空位，这里称为“分配区域”。 这是通过记录二进制数字的数组来实现的。 阵列中的每个二进制数字描述了存储块集合的空位。 当尝试在诸如硬盘的存储介质上的相对连续的区域中记录文件块时，文件系统检查这些二进制数。 当写入磁盘的请求发生时，系统确定所有分配区域的平均空缺，并查询单个空缺率的分配区域，如顺序。 系统优选地将文件块写入高于与文件系统的平均存储块空缺相关的阈值的分配区域。 如果写入请求中的文件大于所选择的分配区域，则优选地使用高于阈值的下一个分配区域来写入文件的剩余块。

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