Use this page to configure one or more service Internet
Protocol (IP) labels to ensure that the resource group is highly available
across multiple nodes.
The resource group uses service IP labels to provide
services and to connect clients to an application that runs on a node.
By default, multiple nodes can acquire a service IP label. However,
you can configure a service IP label on only one node at a time. 
The wizard does not enable any fields on this page until you specify
information for the Service IP Label property.
Fields
- Service IP label
- Select an IP label from a list of discovered and available service
IP labels. You also can specify a service IP label manually.
The IP label that you specify must be unique within the
cluster and must not be in use by another resource group.
- Network name
- Select the name of the network to which to bind the service IP
label. You also can specify the network name manually. The name must
consist of 1 - 64 characters. You can use characters of A - Z and
a - z, numbers of 0 - 9, and the underscore (_) character. A name
cannot begin with a number and cannot be a PowerHA® reserved word.
- Netmask (IPv4) / Prefix length (IPv6)
- Specify either an optional netmask for an Internet Protocol version
4 (IPv4) address or an optional prefix length for an Internet Protocol
version 6 (IPv6) address. The default value is based on the value
that you specified for the Service IP label property.
For
an IPv4 label or address, you can specify a netmask in the range of
1 - 32. Alternatively, you can specify a netmask in the format
nnn.nnn.nnn.nnn,
where
nnn is a numeric value 0 - 255, based
on the following guidelines:
- If you specify an IPv4 service IP label or IP address and the
underlying network is also IPv6, you must specify a netmask.
- If you specify an IPv4 service IP label or IP address and the
underlying network is IPv4, no value is needed for the netmask. If
you do specify a value for the netmask, it is not used.
For an IPv6 label or address, you can specify a prefix
length in the range 1- 128, based on the following guidelines:
- If you specify an IPv6 service IP label or IP address and the
underlying network is IPv4, you must specify a prefix length.
- If you specify an IPv6 service IP label or IP address and the
underlying network is also IPv6, no value is needed for the prefix
length. If you do specify a value for the prefix length, it is not
used.
Associated site (PowerHA SystemMirror 7.1 Enterprise Edition only) 
Select an option to indicate where to activate the service IP
label. This option configures activation of the IP label only on nodes
that belong to the associated site. PowerHA SystemMirror activates site-specific
service IP labels only when their resource group is in the online
primary state on the associated site.
Actions
- Add Another
- Click Add Another to add another set of
fields so that you can configure another service IP label for the
resource group. The wizard does not activate any fields until you
specify information for the Service IP Label field.
- Remove
- Click Remove to remove the content from
the first set of service IP label fields and disable all fields after
the Service IP label field. If applied to an
added service IP label on the page, this action removes the entire
set of fields for the added service IP label.