公开(公告)号：US20110010512A1

公开(公告)日：2011-01-13

申请号：US12500457

申请日：2009-07-09

申请人： Tzu-chieh Lin ,  Hong-ching Chen ,  Yeow-chyi Chen

发明人： Tzu-chieh Lin ,  Hong-ching Chen ,  Yeow-chyi Chen

IPC分类号： G06F12/00

CPC分类号： G06F13/4239

摘要： A method for controlling a storage system and the storage system using this method are disclosed. In the storage system, at least two memory units share an I/O bus. The shared I/O bus transfers information for each memory unit to execute an operation. The operation has at least one high priority cycle and at least one low priority cycle. When a low priority cycle is overlapped with a high priority cycle, the low priority cycle is suspended, and the high priority cycle is operated first. After the high priority cycle is finished, the suspended low priority cycle is then resumed. By doing so, the shared I/O bus may be used by one memory unit during a busy cycle for another memory unit, during which the latter memory unit does not use the I/O bus. Therefore, the I/O bus can be more efficiently used.

摘要翻译： 公开了一种使用该方法控制存储系统和存储系统的方法。 在存储系统中，至少两个存储器单元共享I / O总线。 共享I / O总线传送每个存储器单元的信息以执行操作。 该操作具有至少一个高优先级循环和至少一个低优先级循环。 当低优先级周期与高优先级周期重叠时，低优先级周期被暂停，并且首先操作高优先级循环。 高优先级循环结束后，恢复暂停的低优先级循环。 通过这样做，在另一个存储器单元的繁忙周期期间，一个存储器单元可以使用共享的I / O总线，在此期间，后一个存储器单元不使用I / O总线。 因此，可以更有效地使用I / O总线。