Use this page to configure one or more service IP labels
so that the resource group can be made highly available across multiple
nodes.
The resource group uses the configured IP labels to provide services
and to connect clients to an application running on a node. By default,
a service IP label can be acquired by multiple nodes, although it
is configured on only one node at any given time.
All fields on this page are enabled only when you specify information
for the Service IP Label field.
Fields
- Service IP label
- Select an IP label from a list of discovered and available service
IP labels. You can also specify a service IP label manually.
- Network name
- Select the name of the network to which the service IP label is
to be bound. You can also specify the network name manually. The name
must consist of a minimum of one alphanumeric character and a maximum
of 64 alphanumeric characters. You can use alphabetic 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)
- This field specifies 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. A default value is
provided based on the value specified for the Service IP
label.
For an IPv4 label or address, you can specify
a netmask in the range 1 - 32, or 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.
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. All fields for the added service IP label are inactive
until you specify information for the Service IP Label field.
Then all fields are enabled.
- 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.