Synchronous and asymmetric asynchronous active-active-active data access
US9081842B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2013 |
| Grant date | Jul 14, 2015 |
| Priority date | — |
| Expiry date | Nov 26, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2201/815
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In one aspect, a method to provide synchronous and asymmetric active-active-active access to a first storage volume using a global cache coupled to a first, second and third virtual storage volumes includes replicating asynchronously the first storage volume at a first site to a second storage volume at a second site and mirroring the first storage volume with a third storage volume at a third site. Either one of the first storage volume or the third storage volume has primary storage functionality. The method also includes virtualizing the first storage volume with the first virtual storage volume, virtualizing the second storage volume with the second virtual storage volume and virtualizing the third storage volume with the third virtual storage volume.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.