Prerequisites for protecting machines with vSphere/ESX(i) and rCloud


Supported Versions

  • vSphere 4.x
  • vSphere 5.x
  • ESX 4
  • ESXi 4.x
  • ESXi 5.x Note: The free version of ESXi is not supported. A license is required to expose the API.s that rCloud requires. Support-only licenses will not work, Essentials or above is required.
Management Systems
  • vCenter Server 4.x (optional)
  • vCenter Server 5.x (optional)
Virtual Machines
  • Hosts using operating systems listed in Supported Platforms
  • Any application supported on VMware ESX(i)
Virtual Machine Hardware Versions
  • Version 4 (supported in vSphere 4.0, 4.1, 5.0)
  • Version 7 (supported in vSphere 4.1, 5.0)
  • Version 8 (supported in vSphere 5.0)
ESX Cluster Support
  • A single agent may be installed to manage a single vCenter instance, protecting up to a maximum of 15 servers. In this configuration, all hosts managed by this vCenter instance are managed by a single agent .
  • If vCenter Server is not used, an agent must be installed on each host and will only protect machines on that host. In this configuration moving machines between hosts is not supported.
  • Agents should not be moved between hosts
Additional Requirements
  • The most recent version of VMware Tools must be installed in each virtual machine managed by rCloud.
  • The ESX host must have a static IP address
  • The rCloud vSphere agent will also require a static IP address on the same network as the ESX host
  • The agent requires outbound network access to the Internet, with DNS resolution support. Specifically, the:
    • rCloud hosts: *
    • IP service address range: (
    • TCP Ports:
      • 443
      • 8443
      • 8640
      • 9580
  • All of the files related to a virtual machine being backed up must reside in the same folder, on the same datastore
  • The datastore hosting your virtual machines should have enough free disk space for the creation and deletion of the ESX snapshots used for backups. In the worst case scenario this could require 2 times the total size of any given machine, however that is a very rare case. To understand how snapshots work and snapshot deletion, please review the vmware knowledgebase.
Unsupported Configurations
  • Dual-boot/Multi-boot systems
  • IPv6 is not supported
  • Multi-homed systems (multiple NICs are supported as long as only 1 is in use)
  • VMware Storage vMotion
  • VMware virtual machines with Independent disk configurations
  • VMware virtual machines with Raw Device Mapping (RDM) Disks
  • VMware virtual machines with IDE Virtual Disks
  • VMware virtual machines using vSphere Replication
  • Adding or removing disks after import will is not supported and will require re-import of the machine
  • Systems with software RAID
  • Systems with volumes over 2TB in size
  • Peripherals and external devices (i.e.USB/Serial dongles, modems etc)


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