Designing Disaster Recovery Clusters using Metroclusters and Continentalclusters, Reprinted October 2011 (5900-1881)

Figure 64 Bi-Link Configuration with the replication link between Site1 and Site3
Figure 65 (page 416) shows the Bi-Link configuration with the replication link configured between
Site2 and Site3.
Figure 65 Bi-Link Configuration with the replication link between Site2 and Site3
In Bi-Link configuration:
• Continuous Access Synchronous data replication is established to replicate data between the
arrays at Site1 and Site2 when using 3DC Sync/CAJ replication. Continuous Access Journal
data replication is established to replicate data between the arrays at Site1 and Site2 when
using 3DC CAJ/CAJ replication.
• Continuous Access Journal data replication must be established between one of the arrays
located in the Metrocluster - Site1 or Site2 - and the array located at Site3 depending on
where the Continuous Access link is configured. This replication pair is used to replicate data
to Site3 actively and will be referred as Active-CAJ pair.
416 Designing a Three Data Center Disaster Recovery Solution