Method and system for managing virtual machine storage space and physical host
US8850156B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2011 |
| Grant date | Sep 30, 2014 |
| Priority date | — |
| Expiry date | Jun 1, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2009/45579
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for managing Virtual Machine (VM) storage space is provided. In the method, a Storage Balloon Agent (SBA) module deployed in a VM is adopted to directly acquire virtual storage free block information and deliver the acquired virtual storage free block information to a Storage Balloon Daemon (SBD) module deployed in a Virtual Machine Monitor (VMM) layer; and the SBD module releases a part or all of physical storage space corresponding to the virtual storage free block information, and marks virtual storage blocks corresponding to the released physical storage space as unavailable. A corresponding system and a physical host are further provided in the present invention. Through the method of an embodiment of the present invention, use condition of virtual storage space can be acquired in real time, and a large number of read and write operations of a storage system can be avoided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.