Administrator Guide

VMware vSphere and Live Volume
62 Dell EMC SC Series: Synchronous Replication and Live Volume | CML1064
Event scenario
Live Volume behavior
vSphere HA behavior
Non-uniform: SC Series
controller-pair outage takes
down primary Live Volumes
Primary Live Volumes
automatically recovered at remote
site
vSphere HA restarts impacted VMs
at remote site
Non-uniform: SC Series
controller-pair outage takes
down secondary Live Volumes
Primary Live Volumes remain
available at remote site
vSphere HA restarts impacted VMs
at remote site
Uniform: SC Series back-end
outage (such as loss of drive
enclosure or multiple drives)
takes down primary Live
Volumes
Primary Live Volumes
automatically recovered at remote
site
SC Series continues to provide
Live Volume access from both
arrays
None – VMs remain running at both
sites
Uniform: SC Series back-end
outage (such as loss of drive
enclosure or multiple drives)
takes down secondary Live
Volumes
Primary Live Volumes remain
available at remote site
SC Series continues to provide
Live Volume access from both
arrays
None – VMs remain running at both
sites
Non-uniform: SC Series-back
end outage (such as loss of drive
enclosure or multiple drives)
takes down primary Live
Volumes
Primary Live Volumes
automatically recovered at remote
site
SC Series continues to provide
Live Volume access from both
arrays
None – VMs remain running at both
sites
Non-uniform: SC Series back-
end outage (such as loss of drive
enclosure or multiple drives)
takes down secondary Live
Volumes
Primary Live Volumes remain
available at remote site
SC Series continues to provide
Live Volume access from both
arrays
None – VMs remain running at both
sites
Uniform: Replication link failure
between sites
No automatic failover
Primary Live Volumes remain
available
Secondary Live Volumes go offline
None – VMs remain running at both
sites
Non-uniform: Replication link
failure between sites
No auto failover
Primary Live Volumes remain
available
Secondary Live Volumes go offline
VMs which were running on primary
Live Volumes: None – VMs remain
running
VMs which were running on
secondary Live Volumes: vSphere
HA restarts VMs at remote site