Requirements Cluster

  • Within a failover cluster, the active node additionally takes over the Failover IP address on its network interface card
  • If, due to a malfunction, the active node fails, the secondary node will take over the failover IP address, thereby turning into the active node and staying accessible for the other network components, e.g. firewall and mail server, under the same IP address
  • It is not necessary to reconfigure the IP address
  • The heartbeat network gets installed using the two secondary LAN interfaces (LAN 2) of the appliances and a cross-over patch cable
  • Both appliances are controlling with the help of a regular impulse (heartbeat) whether the other appliance is still working properly
  • If the primary appliance does not react anymore, the secondary appliance will takeover all data resources and start the required services (engine and data base)
  • In case of a failover or an appliance breakdown the administrator will be advised by an email

  • Two Reddoxx appliances of the same product line
  • For each cluster node, the corresponding requirements for Hardware / Virtual Appliances have to match
  • The data partition of the secondary appliance has to be as large or larger than the data partition of the primary appliance.
  • Each cluster node needs to be configured with 2 network interfaces
  • One Ethernet cross-over cable
  • A cluster license fitting to the product line (license for the operating of the cluster)
  • A subscription license fitting to the product line (maintenance license)
  • If the Reddoxx Maildepot is needed, ISCSI is recommended as a share.

  • During the test period the cluster cannot be installed on virtual appliances
  • Before operating the cluster, a virtual appliance must get licensed
  • It is not possible to create a cluster in bridge mode!
  • There is only one Reddoxx cluster allowed for each network segment
  • When the Cluster is running, network settings cannot be changed

The installation process is explained in the following document: Installation steps