发明名称 |
Data migration to high speed storage in accordance with I/O activity over time |
摘要 |
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.
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申请公布号 |
US8380891(B2) |
申请公布日期 |
2013.02.19 |
申请号 |
US201213421715 |
申请日期 |
2012.03.15 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION;HYDE, II JOSEPH SMITH;MCNUTT BRUCE |
发明人 |
HYDE, II JOSEPH SMITH;MCNUTT BRUCE |
分类号 |
G06F3/00;G06F12/00;G06F13/00 |
主分类号 |
G06F3/00 |
代理机构 |
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主权项 |
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地址 |
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