Synchronous extent migration protocol for paired storage
US8572343B2 · kind B2 · utility
3Cited by
9References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2012 |
| Grant date | Oct 29, 2013 |
| Priority date | — |
| Expiry date | Jun 14, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0685
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Extent migration is provided in a data storage environment configured for synchronous replication between a primary and secondary pair of storage entities, each having tiered storage devices. In one embodiment, by way of example only, a migration instruction is sent, by the primary storage entity, to the secondary storage entity, the migration instruction including a time delta approximately equal to a time of an intended migration at the primary storage entity adjusted for a transmission time such that the primary and secondary storage entities conduct the extent migration at approximately a same time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.