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Oracle® Solaris Cluster Data Replication Guide for Hitachi TrueCopy and Universal Replicator

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Updated: June 2019
 
 

Ensuring Data Consistency in Asynchronous Mode Replication

Hitachi Universal Replicator can provide guaranteed data consistency in asynchronous mode replication, in which the replication fence level is set to async. Asynchronous mode replication is commonly used between a primary data center and a distant disaster recovery site. Guaranteed data consistency in asynchronous mode is therefore critical to the functioning of a disaster recovery system.

Guaranteed data consistency in asynchronous replication mode requires the following: