You can modify the network configuration of one or more nodes using the Change IP tool. You can modify the configuration of the Grid Network, or add, modify, or remove the Admin or Client Networks.
Before you begin
- You must have a service laptop.
- You must have the Passwords.txt file.
Linux: If you are adding a grid node to the Admin Network or Client Network for the first time, and you did not previously configure ADMIN_NETWORK_TARGET or CLIENT_NETWORK_TARGET in the node configuration file, you must do so now.
See the StorageGRID installation instructions for your Linux operating system.
Appliances: On StorageGRID appliances, if the Client or Admin Network was not configured
in the StorageGRID Appliance Installer during the initial installation, the network cannot be added by using only the Change IP tool.
First, you must place the appliance's compute controller in maintenance mode, configure the
links, return the appliance to normal operating mode, and then use the Change IP tool to modify the network configuration. See the procedure for configuring network links in the installation and maintenance instructions for your appliance model.
About this task
You can change the IP address, mask, or gateway for one or more nodes on any network.
You can also add or remove a node from a Client Network or from an Admin Network:
- You can add a node to a Client Network or to an Admin Network by adding an IP address/mask on that network to the node.
If you are changing a node IP to an address for which no reservation has been obtained, the address used is a static IP.
- You can remove a node from a Client Network or from an Admin Network by deleting the IP/mask for the node on that network.
Nodes cannot be removed from the Grid Network.
Attention: IP address swaps are not allowed. If you must exchange IP addresses between grid nodes, you must use a temporary intermediate IP address.
Attention: If single sign-on (SSO) is enabled for your StorageGRID system and you are changing the IP address of an Admin Node, be aware that any relying party trust that was configured using the Admin Node's IP address (instead of its fully qualified domain name, as recommended) will become invalid. You will no longer be able to sign in to the node. Immediately after changing the IP address, you must update or recreate the node's relying party trust in Active Directory Federation Services (AD FS) with the new IP address. See the instructions for administering StorageGRID.
Note: Any changes you make to the network using the Change IP tool are propagated to the installer firmware for the StorageGRID appliances. That way, if StorageGRID software is reinstalled on an appliance, or if an appliance is placed into maintenance mode, the networking configuration will be correct.