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    • 2. 发明授权
    • Storage controller and control method thereof
    • 存储控制器及其控制方法
    • US06681291B2
    • 2004-01-20
    • US09986025
    • 2001-11-07
    • Kazuhiko IkeuchiMikio ItoHidejiro DaikokuyaSatomi MamiyaYoshio KitamuraMinoru MuramatsuHiroyuki Hoshino
    • Kazuhiko IkeuchiMikio ItoHidejiro DaikokuyaSatomi MamiyaYoshio KitamuraMinoru MuramatsuHiroyuki Hoshino
    • G06F1200
    • G06F3/0601G06F11/1096G06F2003/0697G06F2211/1035
    • 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.
    • 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。