Set the VIP for a NAS Cluster

To configure NAS failover for either NAS clusters of SMB or NFS shares, you must set a virtual IP (VIP) address for the NAS cluster. In the event that the active master node becomes unavailable, the NAS VIP allows for NAS failover by transferring services to the next available node in the NAS cluster, enabling it as the new active master node.

To ensure continuous access to NAS shares accessed through the NAS cluster, users should always connect to the cluster through the NAS VIP or virtual hostname assigned to the NAS VIP. In addition, to ensure that you are always connected to the master node from the Appliance Controller Console, you should connect through the NAS VIP.

Requirements

Before setting a NAS VIP, review the following information.

Important

The VIP set for the NAS cluster is NOT the same as the VIP used for the StorNext network. Make sure the NAS VIP host name used for the NAS cluster is NOT the same host name used for the HA pair

  • For the Xcellis WFD, configure both nodes of the NAS cluster and the NAS VIP on the 10 GbE network port, which is typically the LAN client network. If you use another network port, the NAS cluster will fail to configure correctly.
  • The NAS VIP must be set within the same network and subnet used by the NAS cluster and NAS clients — this network is typically the LAN client network.
  • Enable global file locking within the StorNext file systembefore setting the NAS VIP for the NAS cluster. See the snfs_config MAN page for more information on the fileLocks parameter.
  • If you have configured Active Directory (AD) or OpenLDAP to authenticate users accessing your NAS cluster, you must add your NAS VIP to the same DNS as your AD or OpenLDAP server. Otherwise, users authenticated through AD or OpenLDAP are unable to access the NAS shares through the NAS cluster.

 

What's Next?

After setting the NAS VIP or VIP pool, join the nodes to the NAS cluster. See Join NAS Clusters.