Use this page to configure optional properties for the
nodes that you selected to include in the new cluster.
A minimum of two nodes are required for the new cluster. Click Back to
change your node selections.
Fields
- Node name
- This field specifies the fully qualified host name of the node,
which is the default value. You can manually specify a different name
for the node. The name must be unique within the cluster and 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, as well as underscore (_) characters.
A name cannot begin with a number and cannot be a PowerHA™ reserved word.
- Communication path
- This field specifies the path that is used to establish communication
with the node. PowerHA SystemMirror
can use this communication path to automatically discover the cluster
configuration from a single node. If you do not specify a path, the
IP address of the host name for the node is used. Select a path to
use from the list of discovered and available communication paths.
Or, you can specify the path manually in one of the following formats:
- a resolvable IP label/address (which can be the host name), for
example, NodeA
- IP address, for example, 10.11.122.133
- fully qualified domain name, for example, NodeA.mycompany.com
- Persistent IP label/address
- This field specifies an optional IP label or IP address that you
want to keep bound (persistent) to this node. There is no default
value. To specify a persistent IP label/address for this node, click
the arrow to select from a list of discovered and available labels/addresses
that exist in the /etc/hosts file. You can manually
specify an IP address only. The value that you specify must be unique
within the cluster and capable of being supported by a network on
the associated node.
- 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 Persistent
IP label/address.
For an IPv4 label or address, you
can specify a netmask in the range of 1 - 32, or in the format n.n.n.n,
where n is a valid IP address value between
0 - 255 (for example, 0.0.0.255). You must specify a netmask for an
IPv4 address when the underlying network is IPv6. A specified netmask
is ignored when the persistent IP label/address and the underlying
network are both IPv4.
For an IPv6 label or address, you can
specify a prefix length in the range of 1 - 128. You must specify
a prefix length for an IPv6 address when the underlying network is
IPv4. A specified prefix length is ignored when the persistent IP
label/address and the underlying network are both IPv6.
- Controlling node
- This selection specifies the controlling node, which is the primary
owner of your highly available application server for the new cluster.
The controlling node is the interface between IBM® Director and the cluster and is the node
upon which all IBM Director
actions are performed. If for any reason the controlling node is unable
to be contacted, PowerHA SystemMirror
reassigns the controlling node to a node that it can contact successfully.
The
first node in the list is selected as the controlling node by default.
Select this option for the node that you want to specify as the controlling
node for the new cluster.