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    • 4. 发明申请
    • Storage device, configuration information management method and program
    • 存储设备,配置信息管理方法和程序
    • US20060282638A1
    • 2006-12-14
    • US11223005
    • 2005-09-12
    • Shoji OshimaTatsuhiko MachidaHirokazu MatsubayashiSatoshi YazawaKoichi Tsukada
    • Shoji OshimaTatsuhiko MachidaHirokazu MatsubayashiSatoshi YazawaKoichi Tsukada
    • G06F12/00G06F12/16
    • G06F3/0637G06F3/0622G06F3/0632G06F3/0689
    • A storage system is comprised of a first processing unit (main CPU) comprising a first input/output control unit and a configuration management unit as execution targets, a second processing unit (sub CPU) comprising a second input/output control unit and a higher-priority control unit which has an execution priority higher than the second input/output control unit as execution targets, and a shared memory which is allocated with a configuration table storing configuration information. When receiving a configuration information change instruction, a configuration information change control unit changes the configuration information of the configuration table during the reference of the second input/output control unit to the configuration table is inhibited by forcing the second processing unit to execute processing of the higher-priority control unit and forces the second processing unit to terminate the processing of the higher-priority control unit with completion of the change of the configuration information. The higher-priority control unit is a system control unit, a command relay control unit (maintenance agent) or an exclusive dedicated task control unit.
    • 一种存储系统包括:第一处理单元(主CPU),包括作为执行目标的第一输入/输出控制单元和配置管理单元;第二处理单元(子CPU),包括第二输入/输出控制单元和更高的 优先级控制单元,其执行优先级高于作为执行目标的第二输入/输出控制单元;以及共享存储器,其被分配有存储配置信息的配置表。 当接收到配置信息改变指令时,配置信息改变控制单元将第二输入/输出控制单元的参考中的配置表的配置信息改变为禁止配置表被强制执行第二处理单元的处理 更高优先级的控制单元,并且强制第二处理单元在完成配置信息的改变的情况下终止高优先级控制单元的处理。 高优先级控制单元是系统控制单元,命令中继控制单元(维护代理)或独占专用任务控制单元。