Because the topology of your StorageGRID Webscale system is that of a group of interconnected servers, over time as your system changes and grows you may be required to perform various updates to the system's networking.
You can change the configuration of the Grid, Client, or Admin Networks, or you can add new Client and Admin Networks. You can also update external NTP source IP addresses and DNS IP addresses at any time.
Note: To use the Grid Network editor to modify or add a network for a grid node, see the Recovery and Maintenance Guide. For more information about network topology, see the Grid Primer.
Grid Network
Required. The Grid Network is the communication link between grid nodes. All hosts on the Grid Network must be able to talk to all other hosts. This network is used for all internal StorageGRID Webscale system communications.
Admin Network
Optional. The Admin Network allows for restricted access to the StorageGRID Webscale system for maintenance and administration.
Client Network
Optional. The Client Network can communicate with any subnet reachable through the local gateway.
Guidelines
- A StorageGRID Webscale grid node requires a dedicated network interface, IP address, subnet mask, and gateway for each network it is assigned to.
- A grid node is not permitted to have more than one interface on a network.
- A single gateway, per network, per grid node is supported, and it has to be on the same subnet as the node. You can implement more complex routing in the gateway, if required.
- On each node, each network maps to a specific network interface.
| Network |
Interface name |
|---|
| Grid |
eth0 |
| Admin (optional) |
eth1 |
| Client (optional) |
eth2 |
- If the node is connected to a StorageGRID Webscale appliance, specific ports are used for each network
- Grid Network or eth0: hic2 and hic4 (10-GbE network ports)
- Admin Network or eth1: mtc1 (the leftmost 1-GbE port)
- Client Network or eth2: hic1 and hic3 (10-GbE network ports)
- The default route is generated automatically, per node. If eth2 is enabled, then 0.0.0.0/0 uses the Client Network on eth2. If eth2 is not enabled, then 0.0.0.0/0 uses the Grid Network on eth0.
- The Client Network does not become operational until the grid node has joined the grid
- The Admin Network can be configured during VM deployment to allow access to the installation UI before the grid is fully installed.