Method to share identical files in a common area for virtual machines having the same operating system version and using a copy on write to place a copy of the shared identical file in a private area of the corresponding virtual machine when a virtual machine attempts to modify the shared identical file
US8656386B1 · kind B1 · utility
84Cited by
9References
23Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 13, 2008 |
| Grant date | Feb 18, 2014 |
| Priority date | — |
| Expiry date | Sep 9, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2009/45583
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system, method and computer program product for managing files of Virtual Machines, including launching a plurality of Virtual Machines in a computing system having a host OS; using a content of at least one file of the host OS as a shared file; using a re-direct, providing access to the shared file when any Virtual Machine attempts to access its private file; using copy-on-write, making a copy of the shared file if the Virtual Machine attempts to modify the shared file, and placing a copy of the shared file in a private area of the corresponding Virtual Machine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.