Data allocation system
US9262345B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2012 |
| Grant date | Feb 16, 2016 |
| Priority date | — |
| Expiry date | Jan 3, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/1466
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A data control system facilitates transfer of a virtual disk from a primary storage system to a secondary storage system. The data control system, responsive to an instruction to transfer the virtual disk, wherein the virtual disk comprises a plurality of data blocks, determines whether each of the plurality of data blocks is allocated or unallocated; for each data block of the plurality of data blocks determined to be allocated, the data control system reads the data block from memory in the primary storage system and transfers the data block for storage in the secondary storage system; and for each data block of the plurality of data blocks determined to be unallocated, the data control system refrains from reading the data block from memory in the primary storage system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.