5.5

Table Of Contents
If you have the correct vSphere license, there is no limit on the number of virtual machines that you can
replicate by using vSphere Replication.
You cannot use vSphere Replication to replicate virtual machines on ESXi hosts that do not have the
correct vSphere license. If you install vSphere Replication on an ESXi host that does not have the correct
license and try to configure replication for virtual machines on that host, the replication fails with a
licensing error.
If you configure a virtual machine for replication on a host with the correct vSphere license and move it to
a host with an unsupported license, vSphere Replication stops replication of that virtual machine. You can
disable vSphere Replication on a configured virtual machine on the unlicensed host.
vSphere Replication Network Ports
vSphere Replication uses default network ports for intrasite communication between hosts at a single site
and intersite communication between hosts at the protected and recovery sites.
For a list of all the ports that must be open for vSphere Replication, see
http://kb.vmware.com/kb/1009562.
For the list of default ports that all VMware products use, see http://kb.vmware.com/kb/1012382.
Operational Limits of vSphere Replication
vSphere Replication has certain operational limits.
To ensure successful virtual machine replication, you must verify that your virtual infrastructure respects
certain limits before you start the replication.
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You can only deploy one vSphere Replication appliance on a vCenter Server instance. When you
deploy another vSphere Replication appliance, during the boot process vSphere Replication detects
another appliance already deployed and registered as an extension to vCenter Server. You have to
confirm if you want to proceed with the new appliance and recreate all replications or shut it down and
reboot the old appliance to restore the original vSphere Replication extension thumbprint in
vCenter Server.
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Each vSphere Replication management server can manage a maximum of 500 replications.
See http://kb.vmware.com/kb/2034768 for more information.
Compatibility of vSphere Replication with Other vSphere
Features
vSphere Replication is compatible with certain other vSphere management features.
You can safely use vSphere Replication in combination with certain vSphere features, such as vSphere
vMotion. Some other vSphere features, for example vSphere Distributed Power Management, require
special configuration for use with vSphere Replication.
VMware vSphere Replication Administration
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