公开(公告)号：US20050021882A1

公开(公告)日：2005-01-27

申请号：US10861783

申请日：2004-06-03

申请人： Keisuke Murata ,  Akira Kojima

发明人： Keisuke Murata ,  Akira Kojima

IPC分类号： G06F3/06 ,  G06F11/14 ,  G06F11/34

CPC分类号： G06F11/1456 ,  G06F11/1469 ,  G06F11/1471

摘要： Embodiments of the invention provide an external storage system having a plurality of magnetic disk units which include a history storing device that automatically stores update information about the magnetic disk units as a history, and that can perform data recovery with a high degree of accuracy whenever a failure occurs. In one embodiment, an external storage system comprises a plurality of magnetic disk units being connected to one another according to a fiber channel protocol. At least one of the plurality of magnetic disk units is a history storing device that monitors each frame being transmitted to the plurality of magnetic disk units, and has an update history storing mode in which update history information is automatically obtained and stored in a storage medium of the history storing device.

摘要翻译： 本发明的实施例提供了一种具有多个磁盘单元的外部存储系统，该多个磁盘单元包括：历史存储装置，其将磁盘单元的更新信息自动存储为历史，并且每当可以以高精确度执行数据恢复时 发生故障 在一个实施例中，外部存储系统包括根据光纤通道协议彼此连接的多个磁盘单元。 多个磁盘单元中的至少一个是历史存储装置，其监视被发送到多个磁盘单元的每个帧，并且具有更新历史存储模式，其中更新历史信息被自动地获得并存储在存储介质中 的历史存储设备。