Changing IP Addresses for the Storage Pool (Private) Network

IP addresses associated with the Storage Pool (Private) network can be changed.

Before You Begin

The following procedure can be used to address network changes that demand IP address changes.

Note

The following procedure cannot be used to change IP address resulting from moving a Data Center.
Update the DNS to reflect the new IP address of the Storage Pool network.
Using the CommCell Console, set the Disk libraries associated with the nodes in the Maintenance mode.
Set the MediaAgents associated with the nodes in the Maintenance mode. For more information on setting the MediaAgents in the Maintenance mode, see Setting the MediaAgent on Maintenance Mode.
Verify and ensure that the gluster uses hostnames for resolution and does not use the IP addresses directly. Use the following command to verify gluster hostnames:
```
gluster peer status
```
The above command should list the hostnames associated with the nodes. (IP addresses should not be displayed.)

Stop the gluster volumes using the following command:
```
gluster volume stop volume_name
```
Update the relevant network configuration file for the private network interface with the new IP address, bonded and non-bonded, as follows:
1. Navigate to the following folder:
  
  /etc/sysconfig/network-scripts
2. Modify the following file:
  
  ifcfg-<Interface name>n
3. Update /etc/hosts.
Restart the network service to reflect the new IP using the following command:
```
systemctl restart network
```
Restart the volume using the following command:
```
gluster volume start volume name
```

Remove the Disk libraries and MediaAgents from the Maintenance mode.
Run the Recovery Readiness Report and verify that the HyperScale nodes are available. For more information on running this report, see Recovery Readiness Report.