Home > Storage > PowerScale (Isilon) > Product Documentation > Cloud > APEX File Storage for AWS: Deployment Guide > Expand a OneFS cluster
You can scale-out an existing cluster at any time to meet your business needs. This section shows how to add a new node into an existing cluster. We will use the 4-node cluster created in section Set up as an example.
Check if the IP address of the new internal network interface is present in the internal address range of the cluster using:
# isi config
# iprange
If the address is not in the range, expand the range to include the IP address of the newly created internal network interface
# iprange int-a <low_address>-<high_address>
# commit
Check if the IP address of the new external network interface is present in the IP Ranges of the default network pool using:
# isi network pool view groupnet0.subnet0.pool0
If the address is not in the IP ranges, add the IP address of the newly created external network interface using
# isi network pool modify groupnet0.subnet0.pool0 --add-ranges <IP_address_of_the_new_interface>
Network interfaces | Network interfaces ID |
Fifth node internal network interface ID | eni-0f3028b55cb03512a |
Fifth node external network interface ID | eni-06ce6abe88aca7c47 |
Prepare the user data json file for the new node. Note that you must include the existing cluster node information along with the new node in the user data json file. The section user-data-node-5.json is an example
Check that the new node is ready to join by running the following command until the node appears as available.
# isi devices node list
# isi devices node add SV200-930073-0004 –async
# isi status
Now, you have finished all steps to scale-out an existing cluster of APEX file Storage for AWS.