Block level data replication
US8924354B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 1, 2011 |
| Grant date | Dec 30, 2014 |
| Priority date | — |
| Expiry date | Aug 1, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/2048
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods for replicating data from a production server to a backup server include identifying one or more data blocks of a file that were modified after a first time instant and before a second time instant. The file may be associated with a protected directory of the production server. An representative data block (e.g., including a hash value) for at least one of the identified data blocks may be computed using a cryptography algorithm, e.g., MD5 or SHA-1. The computed cryptographic data block representing the identified data block may then be sent for replication to the backup server. An operation performed between the first time instant and the second time instant on one or more files of the protected directory may be recorded, and sent to the backup server.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.