The ProfitBricks IP failover feature helps to minimize packet loss for high availability or failover setups in the event that one of the virtual machines experiences an outage. By setting up IP failover groups, you can define the virtual servers that are part of your high availability setup.
IP Failover Groups
Members of an IP failover group are assigned the same (reserved public) IP address so that in case of a failure the communication between members of this group can be maintained.
You can create as many IP failover groups as you need. A virtual server can be a member of more than one IP failover group. It is recommended that the virtual servers of an IP failover group belong to different availability zones.
Please be aware that creating an IP failover group does not automatically set up a high availability or failover scenario. Such a setup, including the rules required to manage traffic, needs to be defined at the operation system level of your virtual machines.
- On IP failover groups (ProfitBricks online help):
- On failover solutions at ProfitBricks (ProfitBricks blog):
*updated in December 2016 to integrate the IP failover groups feature
Upon initial provisioning, the master of an IP failover group needs to be identical with the master of the HA setup on your virtual machines. When the master of your HA setup changes hereafter, you don't have to update the master of the IP failover group.
Requirements and Limitations
ProfitBricks IP failover groups:
- can only be created for public LANs that are not load balanced.
- only work with public IP addresses - IP addresses that are generated dynamically using DHCP cannot be used.
- only support VRRP based HA setups.
- do not support virtual MAC addresses.