Registering and Configuring Sun Cluster HA for DHCP

This section contains the procedures you need to configure Sun Cluster HA for DHCP.

How to Register and Configure Sun Cluster HA for DHCP

This procedure assumes that you installed the data service packages during your initial Sun Cluster installation.

If you did not install the Sun Cluster HA for DHCP packages as part of your initial Sun Cluster installation, go to How to Install the Sun Cluster HA for DHCP Packages using the scinstall utility.

Steps

1. Become superuser on one of the nodes in the cluster that will host DHCP.

2. Register the SUNW.gds resource type.

   # scrgadm -a -t SUNW.gds

3. Register the SUNW.HAStoragePlus resource type.

   # scrgadm -a -t SUNW.HAStoragePlus

4. Create a failover resource group.

   # scrgadm -a -g DHCP-failover-resource-group

5. Create a resource for the DHCP Disk Storage.

   # scrgadm -a -j DHCP-has-resource \ -g DHCP-failover-resource-group \ -t SUNW.HAStoragePlus \ -x FilesystemMountPoints=DHCP- instance-mount-points

6. Create a resource for the DHCP Logical Hostname.

   # scrgadm -a -L -j DHCP-lh-resource \ -g DHCP-failover-resource-group \ -l DHCP-logical-hostname

7. Enable the failover resource group that now includes the DHCP Disk Storage and Logical Hostname resources.

   # scswitch -Z -g DHCP-failover-resource-group

8. a) Create and register the DHCP component.

   # cd /opt/SUNWscdhc/util

   Edit the dhcp_configfile and follow the comments within that file:

   # These parameters can be customized in (key=value) form # RS - name of the resource for the application # RG - name of the resource group containing RS # PORT - name of any port number, as it's ignored # LH - name of the LogicalHostname SC resource # NETWORK - name of the DHCP Network, however comprised of following # <network>@<nafo or ipmp>@<node number> # HAS_RS - name of the DHCP HAStoragePlus SC resource

   The following is an example for DHCP for a 2 node Sun Cluster 3.1 with IPMP.

   RS=dhcp-res RG=dhcp-rg PORT=23 LH=dhcp-lh-res NETWORK=192.168.100.0@ipmp0@1/192.168.100.0@ipmp1@2 HAS_RS=dhcp-has-res

   After editing dhcp_config, you now register the resource.

   # ./dhcp_register

9. b) Create and register the DHCP component for a Sun Cluster Carrier-Grade deployment.

   # cd /opt/SUNWscdhc/util

   Edit the dhcp_configfile and follow the comments within that file:

   # These parameters can be customized in (key=value) form # RS - name of the resource for the application # RG - name of the resource group containing RS # PORT - name of any port number, as it's ignored # LH - name of the LogicalHostname SC resource # NETWORK - name of the DHCP Network, however comprised of following # <network>@<nafo or ipmp>@<node number> # HAS_RS - name of the DHCP HAStoragePlus SC resource # Additional parameters to Sun Cluster Carrier-Grade Edition # USE_CGTP - ff CGTP is being used (TRUE/FALSE) # USE_STATIC_DHCP - ff static DHCP tables should be used (TRUE/FALSE) # TEST_CLIENTID - the mac-address of the test-client # TFTPTESTFILE - path to Tftp testfile

   The following is an example for DHCP for a 2 node Sun Cluster 3.1 with CGTP, static DHCP, active client and tftp monitoring.

   RS=dhcp-res RG=dhcp-rg PORT=23 LH=dhcp-lh-res NETWORK= HAS_RS=dhcp-has-res USE_CGTP=TRUE USE_STATIC_DHCP=TRUE TEST_CLIENTID=8:0:20:a7:95:f9 TFTPTESTFILE=/tftpboot/SCTESTFILE

   After editing dhcp_config, you now register the resource.

   # ./dhcp_register

10. Enable each DHCP resource.

    Repeat this step for each DHCP component as in the previous step.

    # scstat

    # scswitch -e -j DHCP-resource