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Using primary and secondary name servers provides DNS protocol redundancy, and configuring two DHCP servers as DHCP failover peers provides DHCP protocol redundancy. However, you can only have hardware redundancy if you deploy appliances in an HA (high availability) pair. Should the active node in an HA pair fail, the passive node becomes active and begins serving data, as shown in Figure 6.2. the following figure. For more information about HA pairs, see see About HA Pairs.

Independent HA Pair

System Manager GUI

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