Apparatus and method for reallocating logical to physical disk devices using a storage controller, with access frequency and sequential access ratio calculations and display
US5956750A · kind A · utility
112Cited by
5References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 4, 1997 |
| Grant date | Sep 21, 1999 |
| Priority date | — |
| Expiry date | Apr 4, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2211/104
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A storage controller calculates an access frequency of each logical disk; that it selects a first logical disk device of which the access frequency exceeds a first predetermined value, the first logical disk device being allocated to a first physical disk device; selects a second logical disk device which has the access frequency equal to or less than a second predetermined value, the second logical disk device being allocated to a second physical disk device; and reallocates the first and second logical devices to the second and the first physical disk devices, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.