IP addresses associated with the Storage Pool (Private) network can be changed.
Before You Begin
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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.
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Update the DNS to reflect the new IP address of the Storage Pool network.
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Using the CommCell Console, set the Disk libraries associated with the nodes in the Maintenance mode.
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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.
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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.)
Procedure
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Stop the gluster volumes using the following command:
gluster volume stop <volume_name>
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Update the relevant network configuration file for the private network interface with the new IP address, bonded and non-bonded, as follows:
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Navigate to the following folder:
/etc/sysconfig/network-scripts
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Modify the following file:
ifcfg-<Interface name>n
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Update /etc/hosts.
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Restart the network service to reflect the new IP using the following command:
systemctl restart network
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Restart the volume using the following command:
gluster volume start <volume name>
Changing the IP Address of the Data Protection (Public) Network
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Update the relevant network configuration file for the public network interface with the new IP address - bonded and non-bonded as follows:
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Navigate to the following folder:
/etc/sysconfig/network-scripts
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Modify the following file:
ifcfg-<Interface name>n
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What to Do Next
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Remove the Disk libraries and MediaAgents from the Maintenance mode.
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Run the Recovery Readiness Report and verify that the HyperScale nodes are available. For more information on running this report, see Recovery Readiness Report.