Quality of service control method for storage system
US8909868B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 21, 2014 |
| Grant date | Dec 9, 2014 |
| Priority date | — |
| Expiry date | May 21, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/282
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and a system for controlling quality of service of a storage system, and a storage system. The method includes: collecting information about processing capabilities of the hard disks in the storage system and obtaining processing capabilities of the hard disks according to the information about processing capabilities; dividing a cache into multiple cache tiers according to the processing capabilities of the hard disks; and writing, for a cache tier in which dirty data reaches a preset threshold, data in the cache tier into at least one hard disk corresponding to the cache tier. The method avoids a phenomenon of preempting page resources in the cache.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.