Method for assigning storage area and computer system using the same
US8984221B2 · kind B2 · utility
28Cited by
1References
4Claims
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Key dates
| Filing date | Oct 18, 2011 |
| Grant date | Mar 17, 2015 |
| Priority date | — |
| Expiry date | Nov 2, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0689
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
When a method for relocating data to a preferable storage area based on access frequency is applied to virtual machines, it takes a long time for determining volumes that are not accessed, and the access performance is deteriorated. The present invention provides a system and method in which a utilization status of a virtual machine is checked by the storage system, and pages used by virtual machines not being utilized are relocated promptly to lower tiers and pages used by virtual machines being utilized are relocated promptly to higher tiers, according to which the performance of the system is improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.