Raid controller and control method thereof
    1.
    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
    2.
    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。