vSphere Replication can replicate multiple virtual machines.

When you configure replication, you set a recovery point objective (RPO) to determine the period of time between replications. For example, an RPO of 1 hour seeks to ensure that a virtual machine loses no more than 1 hour of data during the recovery. For smaller RPOs, less data is lost in a recovery, but more network bandwidth is consumed keeping the replica up to date.

Every time that a virtual machine reaches its RPO target, vSphere Replication records approximately 3800 bytes of data in the vCenter Server events database. If you set a low RPO period, this can quickly create a large volume of data in the database. To avoid creating large volumes of data in the vCenter Server events database, limit the number of days that vCenter Server retains event data. See Configure Database Retention Policy in the vCenter Server and Host Management Guide. Alternatively, set a higher RPO value.

The available quiescing types are determined by the virtual machine's operating system. See http://kb.vmware.com/kb/2041909 for Microsoft Volume Shadow Copy Service (VSS) quiescing support for Windows virtual machines.

To replicate virtual machines using vSphere Replication, you must deploy the vSphere Replication appliance at the primary and secondary sites. You must power on the virtual machines to begin replication.


On the vSphere Web Client Home page, click VMs and Templates.


Select a datacenter, click the Related Objects tab, then click the Virtual Machines tab.

A list of virtual machines appears in the right pane.


Select the virtual machines to replicate using the Ctrl or Shift keys.


Right-click the virtual machines and click All vSphere Replication Actions > Configure replication.


Acknowledge the number of virtual machines to replicate.


Verify the virtual machine validation and click Next.


Select the target site.

If you have already connected the source and target sites, select the target site from the list.

If you have not connected the source and target sites, and the target site is local, select the target site from the list.

If you have not connected the source and target sites, and the target site is remote, click Add Remote Site and enter the IP or name, and credentials to connect to the site.


Select the target location datastore.

vSphere Replication does not support storage distributed resources scheduler (Storage DRS). Select a datastore that is not part of a datastore cluster.


Use the RPO slider or enter a value to configure the maximum amount of data that can be lost in the case of a site failure.

The available range is from 15 minutes to 24 hours.


Select a Guest OS Quiescing configuration, if applicable to the source virtual machine operating system.


Choose whether or not to use replication seeds.

This option searches the selected target datastore for replication seeds. If candidate files are found, confirm whether to use the found files as seeds. See Replicating Virtual Machines Using Replication Seeds.


Review the settings and click Finish to establish replication.