FRS: Replication Driver Layer-Based Data Replication System on FreeBSD

摘要

Data replication is a key way to design a disaster tolerance system.This paper presents a replication driver layer-based data replication system on FreeBSD(FRS).The system is embedded into the replication device driver layer,does not depend on specific storage devices and logical volume manager,and can achieve replication on data block level.The design considerations and decisions in defining FRS are described in detail.