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    • 4. 发明申请
    • DATA MIGRATION BETWEEN DATA STORAGE ENTITIES
    • 数据存储实体之间的数据迁移
    • WO2011029713A1
    • 2011-03-17
    • PCT/EP2010/062254
    • 2010-08-23
    • INTERNATIONAL BUSINESS MACHINES CORPORATIONIBM UNITED KINGDOM LIMITEDMCNUTT, BruceHYDE II, Joseph, Smith
    • MCNUTT, BruceHYDE II, Joseph, Smith
    • G06F3/06G06F17/30
    • G06F3/0649G06F3/0613G06F3/0685
    • Methods, controllers for data storage, data storage systems, and computer program products are directed to migrating data after the initial placement of the data in data storage entities having higher speed and in other data storage. Steps of a method to migrate data to the higher speed data storage are (1) identifying at least one group of data having had at least one I/O activity in each of a plurality of intervals of time, occurring over a string of multiple intervals of time, wherein the I/O activity is with respect to the other data storage from which data is to be migrated. The time for each of the multiple intervals is selected such that bursts of the I/O activity are likely to be contained in one interval. (2) The identified group of data is classified to the higher speed data storage and migrated.
    • 用于数据存储,数据存储系统和计算机程序产品的控制器用于在将数据初始放置在具有较高速度的数据存储实体中并在其它数据存储中之后迁移数据。 将数据迁移到更高速度数据存储的方法的步骤是(1)识别至少一组在多个时间间隔中的每一个中具有至少一个I / O活动的数据,这些数据在多个间隔的串上发生 的时间,其中I / O活动是相对于要迁移数据的其他数据存储。 选择多个间隔中的每一个的时间,使得I / O活动的突发可能包含在一个间隔中。 (2)将所识别的数据组分类为更高速度的数据存储并进行迁移。