Tracking storage operations of virtual machines
US8464254B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 31, 2009 |
| Grant date | Jun 11, 2013 |
| Priority date | — |
| Expiry date | Nov 12, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2201/815
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Techniques relating to tracking storage operations performed by a guest virtual machine executing on a computer system are disclosed. The guest virtual machine may include a filter driver that provides an indication to a storage tracking virtual machine executing on the computer system that the guest virtual machine is performing a write operation to a production storage device. The storage tracking virtual machine then communicates information about the write operation to a backup storage device (e.g., one that provides continuous data production (CDP) to the computer system). In another embodiment, the storage tracking virtual machine may insert breakpoints into a guest virtual machine. When a first breakpoint triggers, the storage tracking virtual machine captures an I/O buffer of the guest virtual machine. After a second breakpoint triggers, the storage tracking virtual machine communicates information about the write operation to a backup storage device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.