Apparatus and method for reallocating logical to physical disk devices using a storage controller, with access frequency and sequential access ratio calculations and display
US7069383B2 · kind B2 · utility
314Cited by
22References
8Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 2, 2005 |
| Grant date | Jun 27, 2006 |
| Priority date | — |
| Expiry date | Jun 2, 2025 |
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 is 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 device; and reallocates the first and second logical devices to the second and the first physical disk device, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.