Automatic disk mirroring according to workload
US7194575B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 3, 2004 |
| Grant date | Mar 20, 2007 |
| Priority date | — |
| Expiry date | Oct 2, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/2069
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A disk volume access controlling method includes the steps of setting a threshold number of times of accesses from a computer to a predetermined disk volume per time unit, acquiring a number of times of accesses to the predetermined disk volume per time unit, seeking whether or not the number of times of accesses acquired exceeds the threshold number of times, creating a mirror volume for the predetermined disk volume in case that the number of times of accesses acquired exceeds the threshold number of times, and changing an access pass between the computer and the predetermined disk volume to another access pass between the computer and the newly created mirror volume. It then becomes possible to distribute accesses to a certain disk volume, and further to make the accesses to a plurality of volumes even.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.