Performing snapshot replication on a storage system not configured to support snapshot replication
US10133874B1 · kind B1 · utility
30Cited by
267References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2015 |
| Grant date | Nov 20, 2018 |
| Priority date | — |
| Expiry date | Dec 25, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/6218
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In one aspect, a method includes receiving, from a splitter, an I/O to be written from a virtual machine to a production virtual machine disk; sending an acknowledgement to the splitter that the I/O is received; writing data from the I/O to a first differential virtual machine disk; generating a snapshot; allocating a second differential virtual machine disk; redirecting new I/Os to the virtual machine, arriving from the splitter, to the second differential virtual machine disk and applying changes from first differential disk to a copy of data on a backup storage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.