How to Add a Shared Address Resource to a Resource Group

When you add a shared address resource to a resource group, the extension properties of the resource are set to their default values. To specify a nondefault value, you must modify the resource after you add the resource to a resource group. For more information, see How to Modify a Logical Hostname Resource or a Shared Address Resource.

Perform this procedure from any cluster node.

Before You Begin

Ensure that you have the following information.

• The name of the resource group into which you are adding the resource. This group must be a failover resource group that you created previously.

• The hostnames that you plan to add to the resource group.

Steps

1. Become superuser on a cluster member.

2. Add the shared address resource to the resource group.

   # scrgadm -a -S [-j resource] -g resource-group -l hostnamelist, … \ [-X auxnodelist] [-n netiflist]

   -a

   Adds shared address resources.

   -S

   Specifies the shared address resource form of the command.

   -j resource

   Specifies an optional resource name of your choice. If you do not specify this option, the name defaults to the first hostname that is specified with the -l option.

   -g resource-group

   Specifies the resource group name.

   -l hostnamelist, …

   Specifies a comma-separated list of shared address hostnames.

   -X auxnodelist

   Specifies a comma-separated list of physical node names or IDs that identify the cluster nodes that can host the shared address but never serve as primary if failover occurs. These nodes are mutually exclusive, with the nodes identified as potential masters in the resource group's node list.

   -n netiflist

   Specifies an optional, comma-separated list that identifies the IP Networking Multipathing groups that are on each node. Each element in netiflist must be in the form of netif@node. netif can be given as an IP Networking Multipathing group name, such as sc_ipmp0. The node can be identified by the node name or node ID, such as sc_ipmp0@1 or sc_ipmp@phys-schost-1.

   ---

   Note –

   Sun Cluster does not support the use of the adapter name for netif.

   ---

3. Verify that the shared address resource has been added and validated.

   # scrgadm -pv -j resource

Example 2–8 Adding a Shared Address Resource to a Resource Group

This example shows the addition of a shared address resource (resource-1) to a resource group (resource-group-1).

# scrgadm -a -S -j resource-1 -g resource-group-1 -l schost-1
# scrgadm -pv -j resource-1
(resource-group-1) Res name:                                resource-1
    (resource-group-1:resource-1) Res R_description:
    (resource-group-1:resource-1) Res resource type:        SUNW.SharedAddress
    (resource-group-1:resource-1) Res resource group name:  resource-group-1
    (resource-group-1:resource-1) Res enabled:              False
    (resource-group-1:resource-1) Res monitor enabled:      True

Next Steps

After you add a shared-address resource, use the procedure How to Bring Online Resource Groups to enable the resource.

Troubleshooting

Adding a resource causes the Sun Cluster software to validate the resource. If the validation fails, the scrgadm command prints an error message and exits. To determine why the validation failed, check the syslog on each node for an error message. The message appears on the node that performed the validation, not necessarily the node on which you ran the scrgadm command.

See Also

The scrgadm(1M) man page.