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Network management
IP address pool configuration
IP address pools are logical network partitions of the nodes and external network interfaces that belong to a cluster. IP
address pools are also used to configure SmartConnect zones and IP failover support for protocols such as NFS.
IP address pools, which belong to external network subnets, allow you to partition your cluster's network interfaces into
groups. This lets you assign ranges of IP addresses to logical or functional groups in your organization. For example,
you could dedicate one range of IP addresses on a subnet to your organization's sales team, and another range of them
to your human resources department.
A subnet's IP address pool consists of one or more ranges of unique and contiguous IP addresses, and the cluster's
external network interfaces that they use to communicate with clients.
A default IP address pool is configured during initial setup of your cluster using the command-line Configuration Wizard.
You can modify that default IP address pool at any time, add or remove additional pools, and modify them as your
networking needs evolve.
If you add more external network subnets to your cluster using the subnet wizard , part of that process involves specifying
the IP address pool or pools that belong to the subnet.
Each IP address pool is configured to allocate IP addresses to the cluster's external network interfaces using either the
static or dynamic method. With the static allocation method, IP addresses are assigned when member interfaces are
added to the pool; not all IP addresses are guaranteed to be assigned using this method. With the dynamic allocation
method, all IP addresses are distributed across the member interfaces.
Add interface members to an IP address pool
You can assign a node's external network interfaces to a subnet's IP address pool.
Node interface members are initially assigned to a subnet's IP address pool during cluster setup, and additional members
can be added later using the subnet wizard. Once a subnet and its IP address pool have been created, you can assign or
reassign node interface members to the IP address pool at any time.
1. On the Cluster menu, click Networking.
The Networking page appears.
2. Under External Network Settings, click the link for the subnet that contains the IP address pool to which you want
to add interface members.
The Edit Subnet page appears.
3. In the Pool members area, click Edit.
The Configure Pool Interface Members dialog box appears.
4. Select which Available interfaces on which nodes you want to assign to the current IP address pool, and then click
the right-arrow button.
You can also drag and drop the selected interfaces between the Available interfaces table and the Interfaces in
current pool table.
Selecting an available interface for a node that has a Type designated Aggregation bonds together the external
interfaces for the selected node. For information about NIC aggregation, refer to NIC aggregation on page 33 in the
OneFS user guide.
Note: In the case of aggregated links, choose the aggregation mode that corresponds to the switch settings
from the Aggregation mode drop-down.
! Caution: Configuring link aggregation requires advanced knowledge of how to configure network switches.
Consult your network switch documentation before configuring your cluster for link aggregation.
5. When you have finished assigning external network interfaces to the IP address pool, click Submit.
The interface member settings you configured are displayed on the Edit Subnet page.
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2011 Isilon Systems, LLC.
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