Enhancing tiering storage performance
US9632707B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 26, 2015 |
| Grant date | Apr 25, 2017 |
| Priority date | — |
| Expiry date | Mar 26, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0689
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for improving data storage and retrieval performance, comprising, for a tiered storage environment having levels corresponding to storage performance, using reference count information of at least one data segment maintained in the storage environment to determine which of the levels in the environment the data segment will be assigned; obtaining input/output performance data for input/output operations on the data segment and transforming the data into short term moving averages and long term moving averages; comparing the averages in a performance level to the long term moving averages of the data segment in the performance level and examining the reference count information over time to determine whether a performance trend of the data segment is increasing or decreasing; and promoting the data segment to a higher performance level in the tiered storage environment, if the data segment has an increasing performance trend.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.