Write ordering style asynchronous replication utilizing a loosely-accurate global clock
US7925629B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2007 |
| Grant date | Apr 12, 2011 |
| Priority date | — |
| Expiry date | Jan 12, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/2074
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A write ordering style asynchronous replication service utilizes a loosely-accurate global clock in a data backup and recovery storage environment. The storage environment includes a set of source storage systems illustratively embodied as source replication nodes that cooperate to maintain a consistency group that may span multiple geographical sites. The storage environment also includes one or more target storage systems illustratively embodied as target replication nodes configured to service the consistency group. The write ordering style service utilizes the loosely-accurate global clock to provide consistent replication of a storage space of the consistency group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.