Create Resource Group Wizard: Service IP label

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.

start of changeThe 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. end of change

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. start of changeThe IP label that you specify must be unique within the cluster and must not be in use by another resource group.end of change
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.
start of changeAssociated site (PowerHA SystemMirror 7.1 Enterprise Edition only) end of change
start of changeSelect 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.end of change

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.