Overview of the active-active-passive solution for VxRail
If we deployed the vSAN stretched cluster on VxRail between the primary and secondary sites, how could the disaster recovery solution for the vSAN stretched cluster be extended? VMware Site Recovery Manager (SRM) also supports extending the site-level protection to other sites. In Figure 9.37, we can see that there are four separate sites: they are Preferred Site, Secondary Site, Witness Site, and Remote Site. The vSAN stretched cluster builds on VxRail across the preferred and secondary sites, and the vSAN witness host is running at the witness site. The VxRail cluster is running at the remote site. The SRM is enabled with vSphere Replication between the vSAN stretched cluster and the VxRail cluster. If the vSAN stretched cluster has a fault, we could execute the SRM recovery plan to recover all the protected VMs on the vSAN stretched cluster in the VxRail cluster at the remote site: