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    • 1. 发明授权
    • Computer system and snapshot data management method thereof
    • 计算机系统及其快照数据管理方法
    • US06694413B1
    • 2004-02-17
    • US09652283
    • 2000-08-30
    • Yasuyuki MimatsuNaoto MatsunamiKenji MuraokaTakashi OedaIkuya Yagisawa
    • Yasuyuki MimatsuNaoto MatsunamiKenji MuraokaTakashi OedaIkuya Yagisawa
    • G06F1200
    • G06F11/1466G06F2201/84Y10S707/99953Y10S707/99955
    • A method of managing snapshot data of a computer system provided with a computer and a storage subsystem coupled to the computer, and the computer system to which the method is applied, are disclosed. The storage subsystem is provided with the duplicated first and second storage units. In the state in which they are duplicated, when a request to update data is issued to the first storage unit, the storage subsystem writes the same updated data onto the second storage unit. When an acquisition of the snapshot is requested by the computer at any time, the storage subsystem suspends the writing of the writing data for the first storage unit onto the second storage unit thereafter. When the writing of the data onto the first storage unit occurs, the computer holds the location of writing the data as differential information. When making the contents of the first storage unit and the second storage unit the same, the data written onto the first storage unit after the acquisition of the snapshot is requested is written onto the second storage unit.
    • 公开了一种管理计算机系统的快照数据的方法,所述计算机系统具有与计算机相连的计算机和存储子系统,以及应用了该方法的计算机系统。 存储子系统具有复制的第一和第二存储单元。 在它们被复制的状态下,当向第一存储单元发出更新数据的请求时,存储子系统将相同的更新数据写入第二存储单元。 当计算机随时请求获取快照时,存储子系统暂停将第一存储单元的写入数据写入第二存储单元。 当将数据写入第一存储单元时,计算机保存将数据写入的位置作为差分信息。 当使第一存储单元和第二存储单元的内容相同时,在请求获取快照之后写入第一存储单元的数据被写入第二存储单元。
    • 5. 发明授权
    • Computer system
    • 电脑系统
    • US06941439B2
    • 2005-09-06
    • US10282863
    • 2002-10-28
    • Ikuya YagisawaNaoto MatsunamiYasuyuki MimatsuAkihiro MannenKenji Muraoka
    • Ikuya YagisawaNaoto MatsunamiYasuyuki MimatsuAkihiro MannenKenji Muraoka
    • G06F3/06G06F12/00G06F12/10
    • G06F3/0635G06F3/0605G06F3/0631G06F3/0689
    • An address translation server recognizes and stores a characteristic of a storage device which forms a memory area. The address translation server creates and issues a command to the storage device by recognizing an access characteristic from a host computer and taking into consideration a characteristic of a storage device to which the command is issued. In addition, the storage device provides a resource which matches a requested access characteristic. An external storage device attributes setting program is provided so that the address translation server can dynamically execute, in accordance with changes in the access status from the host computer, an instruction to change an attribute to a storage device which forms a memory area. Furthermore, the storage device incorporates an LU attribute command receiving program which is used to change the internal control for obtaining a requested attribute.
    • 地址转换服务器识别并存储形成存储区域的存储装置的特性。 地址转换服务器通过从主计算机识别访问特性并考虑发出命令的存储设备的特性来创建并向存储设备发出命令。 此外,存储设备提供与所请求的访问特性相匹配的资源。 提供外部存储设备属性设置程序,使得地址转换服务器可以根据来自主计算机的访问状态的改变来动态地执行将属性更改为形成存储区域的存储设备的指令。 此外,存储装置包含LU属性命令接收程序,该LU属性命令接收程序用于改变内部控制以获得所请求的属性。