Disk selection method, raid control device, raid system, and its disk device
    1.
    发明授权
    Disk selection method, raid control device, raid system, and its disk device 有权
    磁盘选择方式,RAID控制装置,RAID系统及其磁盘设备

    公开(公告)号:US07992035B2

    公开(公告)日:2011-08-02

    申请号:US11828643

    申请日:2007-07-26

    IPC分类号: G06F11/00

    CPC分类号: G06F11/1092 G06F11/2082

    摘要: A response of a disk device during rebuild can be sped up. A disk array control device determines whether or not there is a normal read request during rebuild. If there is a read request during rebuild, data is read by sequentially switching a plurality of disk devices in a certain block size unit lower than a block size in which each disk device reads data during normal read.

    摘要翻译: 重建期间磁盘设备的响应可以加快。 磁盘阵列控制装置在重建期间确定是否存在正常的读取请求。 如果在重建期间存在读取请求,则通过以比每个磁盘设备在正常读取期间读取数据的块大小的某个块大小单位顺序切换多个磁盘设备来读取数据。

    STAGING METHOD FOR DISK ARRAY APPARATUS
    2.
    发明申请
    STAGING METHOD FOR DISK ARRAY APPARATUS 审中-公开
    磁盘阵列设备的分析方法

    公开(公告)号:US20080155193A1

    公开(公告)日:2008-06-26

    申请号:US11864091

    申请日:2007-09-28

    IPC分类号: G06F12/00

    摘要: To provide a staging method capable of detecting an error in data read from a disk device during staging, a disk array control apparatus 100 includes a data read unit 101 for reading data, a first reference data generation unit 102 for generating first reference data from the read data, a second reference data generation unit 103 for similarly generating second reference data, a true-false determination unit 104 for determining whether or not the data read by the data read unit 101 is correct, and a data write unit 105 for writing data to cache memory.

    摘要翻译: 为了提供能够在分段期间检测从磁盘装置读取的数据中的错误的分段方法,磁盘阵列控制装置100包括用于读取数据的数据读取单元101,用于从第一参考数据生成单元102生成第一参考数据的第一参考数据生成单元102 读取数据,用于类似地产生第二参考数据的第二参考数据生成单元103,用于确定数据读取单元101读取的数据是否正确的真假确定单元104以及用于写入数据的数据写入单元105 缓存内存

    Apparatus for detecting disk write omissions
    3.
    发明申请
    Apparatus for detecting disk write omissions 审中-公开
    用于检测磁盘写入缺失的装置

    公开(公告)号:US20060179215A1

    公开(公告)日:2006-08-10

    申请号:US11131416

    申请日:2005-05-18

    IPC分类号: G06F12/00

    CPC分类号: G06F11/1076 G06F2211/104

    摘要: In the present invention, for each set of blocks [#(0) to #(N−1)] storing update data, a history block [#(N)] storing an update state value, for example, a generation, time or check code, showing an update state is provided, constituting a set of management data as a check object. When writing update data on a disk, a new update state value is calculated for the same set of management data and stored in memory as update state confirmation value. The new update state value is also set as write data in the history block in the same set of management data, and the entire of the set of management data including update data and update state value are written onto a disk. The history block is read and disk write omissions are detected by comparing the update state value and the update state confirmation value stored in memory.

    摘要翻译: 在本发明中,对于存储更新数据的每个块[#(0)〜#(N-1)]组,存储更新状态值的历史块[#(N)],例如生成,时间或 检查代码,显示提供更新状态,构成作为检查对象的一组管理数据。 在磁盘上写入更新数据时,为同一组管理数据计算新的更新状态值,并将其作为更新状态确认值存储在内存中。 新的更新状态值也被设置为同一组管理数据中的历史块中的写入数据,并且包括更新数据和更新状态值的整个管理数据集合被写入盘中。 读取历史块,并通过比较存储在存储器中的更新状态值和更新状态确认值来检测磁盘写入缺失。

    Raid controller and control method thereof
    4.
    发明授权
    Raid controller and control method thereof 有权
    RAID控制器及其控制方法

    公开(公告)号:US06851022B2

    公开(公告)日:2005-02-01

    申请号:US09994698

    申请日:2001-11-28

    摘要: A RAID controller accesses an access request area on logical volumes distributed and stored on a plurality of physical disks according to a disk access request from a host. The controller has a plurality of management modules which are in-charge of plurality of the redundant groups respectively and issuing a logical format request for each area of said logical volume by referring to a management table for managing progress information of the logical format processing. Each management module has a plurality of the management table for being in-charge of said plurality of redundant groups and a queue for queuing the disk access request. The management module, according to the disk access request, judges whether all the access request areas have been logically formatted referring to the management table.

    摘要翻译: RAID控制器根据来自主机的磁盘访问请求访问分布在并存储在多个物理磁盘上的逻辑卷上的访问请求区域。 控制器具有分别负责多个冗余组的多个管理模块,并且通过参考用于管理逻辑格式处理的进度信息的管理表,对所述逻辑卷的每个区域发出逻辑格式请求。 每个管理模块具有多个用于负责所述多个冗余组的管理表和用于排队磁盘访问请求的队列。 根据磁盘访问请求,管理模块根据管理表判断所有访问请求区域是否已经被逻辑地格式化。

    Storage controller and control method thereof
    5.
    发明授权
    Storage controller and control method thereof 有权
    存储控制器及其控制方法

    公开(公告)号:US06681291B2

    公开(公告)日:2004-01-20

    申请号:US09986025

    申请日:2001-11-07

    IPC分类号: G06F1200

    摘要: A storage controller executes logical format to enable host access to a physical disk, where the logical format of a physical disk is executed without waiting for host access. The storage controller comprises a logical format management module having bit map memory for managing progress information on format processing of a logical volume, and a lower layer module which accesses a physical disk according to the request of the management module. The management module judges whether all the access areas have been formatted referring to the bit map memory, requests the disk access to the lower layer module if judged as formatted, while, issues a logical format processing request before the disk access, queues the disk access request to the queue if not formatted, further searches the unformatted area from the bit map memory, and issues a logical format processing request if no disk access request exists in the queue.

    摘要翻译: 存储控制器执行逻辑格式以使主机能够访问物理磁盘,其中在不等待主机访问的情况下执行物理磁盘的逻辑格式。 存储控制器包括具有位图存储器的逻辑格式管理模块,用于管理关于逻辑卷的格式处理的进度信息,以及根据管理模块的请求访问物理盘的下层模块。 管理模块根据位图存储器判断所有访问区域是否已被格式化,如果判断为格式化请求磁盘访问下层模块,同时在磁盘访问之前发出逻辑格式处理请求,将磁盘访问排队 如果没有格式化请求到队列,则进一步从位图存储器中搜索未格式化的区域,并且如果队列中没有存在磁盘访问请求,则发出逻辑格式处理请求。