cluvfy comp dhcp

Use the cluvfy comp dhcp component verification command to verify that the DHCP server exists on the network, and that it can provide a required number of IP addresses. The required number of IP addresses is calculated, as follows:

  • Regardless of the size of the cluster, there must be three scan VIPs

  • One node VIP for each node you specify with the -n option

  • One application VIP for each application VIP resource you specify with the -vipresname option

This verification also verifies the response time for the DHCP server.

Syntax

cluvfy comp dhcp -clustername cluster_name [-vipresname application_vip_resource_name]
  [-port dhcp_port] [-n node_list] [-method {sudo -user user_name [-location directory_path] | root}]
  [-networks network_list] [-verbose]

Parameters

Table A-9 cluvfy comp dhcp Command Parameters

Parameter Description 
-clustername cluster_name

The name of the cluster of which you want to check the integrity of DHCP.

 
-vipresname application_vip_resource_name

A comma-delimited list of the names of the application VIP resource.

 
-port dhcp_port

The port to which DHCP packages are sent. The default port is 67.

 
-n node_list

The comma-delimited list of nondomain qualified node names on which to conduct the verification.

If you do not specify this option, then CVU checks only the local node.

 
-method {sudo -user user_name
 [-location directory_path] | root}

Specify whether the privilege delegation method is sudo or root, for root user access. If you specify sudo, then you must specify the user name to access all the nodes with root privileges and, optionally, provide the full file system path for the sudo executable.

 
-networks network_list

Specify a list of network classifications for the cluster separated by forward slashes (/) that you want CVU to check, where each network is in the form of "if_name"[:subnet_id[:if_type[,if_type...]]].

In the preceding format, you must enclose if_name in double quotation marks, and you can use regular expressions, such as ".*", as in "eth*", to match interfaces like eth1 and eth02. The subnet_id is the subnet number of the network interface. The if_type is a comma-separated list of interface types: {CLUSTER_INTERCONNECT | PUBLIC | ASM}.

 
-verbose

CVU prints detailed output.

Usage Notes

  • You must run this command as root.

  • Do not run this check while the default network Oracle Clusterware resource, configured to use a DHCP-provided IP address, is online (because the VIPs get released and, since the cluster is online, DHCP has provided IP, so there is no need to double the load on the DHCP server).

  • Run this check on the local node. This is unlike other CVU commands, which run on all nodes specified in node list. As a result, even though the local node is not included in the node list you specify with the -n option, the error messages get reported to the local node.

  • Before running this command, ensure that the network resource is offline. Use the srvctl stop nodeapps command to bring the network resource offline, if necessary.

    See Also:

    Oracle Real Application Clusters Administration and Deployment Guide for more information about the srvctl stop nodeapps command