Typically 70% of the addresses in the scope are assigned to the primary server and the remaining 30% are assigned to the backup server. Split scope DHCP uses two independent DHCP servers that share responsibility for a scope. In addition, clustering involves relatively complex setup and maintenance. This makes the storage a single point of failure, and requires additional investment in redundancy for storage.
The clustering deployment option uses a single shared storage. This option places the DHCP server in a cluster with an additional server configured with the DHCP service that assumes the load if the primary DHCP server fails.
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Each of these options is associated with some challenges.ĭHCP in a Windows failover cluster. In Windows Server® 2008 R2, there are two high availability options available for DHCP Server deployment. The configuration, including IP addresses and all other configuration parameters, is designed only to work on a separate test lab network.
This configuration is neither designed to reflect best practices nor does it reflect a desired or recommended configuration for a production network. Individual computers are needed to separate the services provided on the network and to clearly show the desired functionality. The following instructions are for configuring a test lab using the minimum number of computers.