Data replication within a flash storage array
US10656864B2 · kind B2 · utility
2Cited by
46References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 20, 2014 |
| Grant date | May 19, 2020 |
| Priority date | — |
| Expiry date | Jul 26, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2201/84
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system and method for performing replication using mediums. A snapshot ‘S’ is selected for replication, and the anchor medium ‘M’ of S is identified. The replica storage array ‘R’ to which M is being replicated determines a list of medium extents which are available. R sends this list to an original storage array ‘O’ and O generates a list of medium extents which need to be sent to R. Only those medium extents corresponding to M which R does not already have will be sent from O to R. Also, R can obtain medium extents from other source storage arrays during the replication process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.