发明者
Abhishek Jain, Sarvesh Patel, Subhojit Roy, Kushal Patel
发表日期
2020/1/14
专利局
US
专利号
10534559
专利申请号
15896295
简介
A data storage system includes multiple tiers of data storage accessible by multiple hosts. The multiple tiers include an upper tier having a lower access latency and a lower tier having a higher access latency. For each extent among a plurality of extents of file system objects in the data storage, the storage controller separately tracks, for each of one or more hosts that access the extent, a respective heat indicative of a frequency of access by that host. In response to an event disassociating a first host among the multiple hosts from a particular extent among the plurality of extents, the storage controller recalculates an overall heat of the particular extent while excluding a first heat of the first host for the particular extent. The storage controller migrates extents among the multiple tiers based on overall heats of the plurality of extents.
学术搜索中的文章
A Jain, S Patel, S Roy, K Patel - US Patent 10,534,559, 2020