Planning the Sun Cluster HA for DHCP Installation and Configuration

This section contains the information you need to plan your Sun Cluster HA for DHCP installation and configuration.

Configuration Restrictions

The configuration restrictions in the subsections that follow apply only to Sun Cluster HA for DHCP.

Your data service configuration might not be supported if you do not observe these restrictions.

Restriction for the supported configurations of Sun Cluster HA for DHCP

The Sun Cluster HA for DHCP data service can only be configured as a failover service.

DHCP must operate as a DHCP server and not as a relay host.

Only one DHCP instance can be configured within the cluster, however you can have multiple DHCP networks within that DHCP instance.

Restriction for the location of DHCP files

The DHCP files is the network table that is created when you configure DHCP using the /usr/sadm/admin/bin/dhcpmgr.

The DHCP files must be placed on shared storage as either a cluster file system or a highly available local file system.

Configuration Requirements

The configuration requirements in this section apply only to Sun Cluster HA for DHCP.

If your data service configuration does not conform to these requirements, the data service configuration might not be supported.

Required /etc/inet/dhcpsvc.conf parameters.

The following parameters must be set within /etc/inet/dhcpsvc.conf

• DAEMON_ENABLED is always set to true.

• PATH points to the DHCP network table.

• RUN_MODE is always set to SERVER.

• RESOURCE is set to either SUNWbinfiles or SUNWfiles.