Administrator Guide

VMware vSphere and Live Volume
55 Dell EMC SC Series: Synchronous Replication and Live Volume | CML1064
8.8 Live Volume automatic failover
Configuring Live Volume for synchronous high availability replication and automatic failover (Figure 47) is a
key requirement for vMetro Storage Cluster deployments. Live Volume and replication may be configured on
a per-volume basis using the SC Series vSphere web client plug-in or Unisphere Central for SC Series. The
Failover Automatically feature for Live Volume is configured using DSM. Live Volume automatic failover is
supported with VMware vSphere 5.5 or newer VMFS datastores and virtual mode RDMs, with support for
physical mode RDMs added with the release of SCOS 7.1.
Live Volume configured with Synchronous, High Availability, and Failover Automatically enabled
8.9 vMSC storage presentation
vSphere Metro Storage Cluster supports uniform or non-uniform storage presentation and fabric designs.
Within the vMSC entity, one presentation model should be implemented consistently for all vSphere hosts in
the stretched cluster. Mixing storage presentation models within a stretched cluster is not recommended. It
may work but it has not been formally or thoroughly tested.