Replication techniques with content addressable storage
US9383928B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 13, 2011 |
| Grant date | Jul 5, 2016 |
| Priority date | — |
| Expiry date | Mar 24, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0683
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A CAS data storage system with one or more source CAS data storage spaces and one or more destination CAS data storage spaces, and a communication line therebetween, receives input data at the source storage space for local storage and for replication to the destination CAS storage space. CAS metadata is used in the replication procedure between the two separate CAS storage spaces. Thus, data at the source storage space is used to form an active buffer for transfer to the destination storage space, the active buffer holding a hash result of the respective data item and a storage address. The system detects whenever there is more than one data item in said active buffer sharing a same storage address and upon such detection transfers a respective hash result of only the last of the data items.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.