- Handling network address changes

# Handling network address changes

Contents

File system targets use a network address or network ID (NID) to refer to the server with which they are associated. A storage server NID may change if the network connecting the storage servers and clients is modified. If a server NID changes, the server NID record in the manager must be updated.

Note: The manager software detects and displays an alert “NIDs changed on server %s” for each server on which the NID has changed.

Caution: This procedure stops the file system and erases the configuration logs so that they will be regenerated when the servers are restarted.

To prompt the manager software to detect new NIDs and update file system targets:

1. | At the menu bar, click the Configuration drop-down menu and click Servers.

2. | Click Re-write target configuration.

3. | A new column appears on the far right: Select Server. All servers are selected by default. Select the servers for which you want to rewrite NIDs. Then click Re-write Target Configuration.

4.

The manager queries the network interfaces on the storage servers. Each target is updated with the current NID for the server with which it is associated. To check that the manager has detected the correct NID for a server, click the Hostname of the server to display a detailed view of the server. Scroll down to the NID Configuration section to view the network interface, IP Address, driver, and network for each NID.

You can also directly edit the NID configuration for a server, but to do this, the server cannot belong to an existing Lustre file system. See NID Configuration.

WARNING: For Lustre* file systems created and managed by Intel® Manager for Lustre* software, the only supported command line interface is the CLI provided by Intel® Manager for Lustre* software. Modifying such a Lustre file system manually from a UNIX shell will interfere with the ability of Intel® Manager for Lustre* software to manage and monitor the file system.

Lustre commands can, however, be used to manage metadata or object storage servers in an existing Lustre storage system that has been set up outside the manager and is being monitored, but not managed, by Intel® Manager for Lustre* software.