Dynamic disk replication mode selection based on storage area network latency
US11132135B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 11, 2019 |
| Grant date | Sep 28, 2021 |
| Priority date | — |
| Expiry date | May 8, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2201/81
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An aspect includes monitoring, by a server, a round trip latency between a primary storage device and a secondary storage device in a SAN. The secondary storage device replicates the primary storage device in a replication mode that is either an asynchronous replication mode or a synchronous replication mode. Based on the replication mode being the asynchronous replication mode and on detecting that the round trip latency has decreased to a value below a synchronous latency threshold value, the replication mode is set to the synchronous replication mode. Based on the replication mode being the synchronous replication mode and on detecting that the round trip latency has increased to a value above the synchronous latency threshold value, the replication mode is set to the asynchronous replication mode. The monitoring is repeated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.