Specifications

46 Barracuda Link Balancer Administrator’s Guide
Step 4: Put in Production
From now on, always use the VRRP virtual IP address to manage the Barracuda Link Balancer so that
you can be sure that any changes that you make will occur immediately on the active system.
Removing a System from a Cluster
You can find detailed instructions to separate clustered Barracuda Link Balancers in the online help.
The system that is to be removed from the cluster must have its cluster settings erased and its network
links disconnected. If another system is not taking its place in the cluster, the remaining system should
have its cluster settings removed, and possibly also have its LAN IP address changed to what had been
the VRRP virtual IP address.
Use the LAN IP addresses of the Barracuda Link Balancers to access their Web interfaces while
separating them. As soon as one system is removed from the cluster the VRRP virtual IP address will
not be usable.
Updating Firmware on Clustered Systems
In order to ensure that the transfer of control from one system to the other does not happen while a
firmware update is in process, you must disable automatic failback on the
Advanced > High
Availability
page before attempting to update the firmware on either system. We recommend that you
update the firmware on the passive system first, and then update the firmware on the active system.
Enable automatic failback again, if desired, after both systems have been updated and are back online.