Create a NAS Cluster in StorNext Connect

A NAS cluster is a grouping of one or more NAS gateways that are all managed by the same Xcellis Workflow Director or StorNext Metadata Controller. A NAS gateway is any NAS-capable appliance node with StorNext NAS licensed and enabled. The Manage NAS application supports NAS clusters made up of either the server node/MDC(s) of a Quantum appliance or one or more gateway appliance clients (G300/Xcellis Workflow Extender) managed by an Xcellis Workflow Director or StorNext MDC. A NAS cluster cannot include both MDCs and gateway clients as its NAS gateways.

A NAS cluster provides users the ability to access NAS shares located on any of the NAS cluster's nodes.

Through NAS clusters, you can also take advantage of additional features built into StorNext NAS, such as NAS failover to ensure that users can always access NAS shares, or gateway appliance load-balancing to maintain a desirable level of network-response time.

 

Gateways Configuration Form - Supported NAS Cluster Configurations

Cluster with One Gateway Appliance Node

Gateways Configuration Form - Supported NAS Cluster Configurations

Cluster with Multiple Gateway Appliance Nodes

Gateways Configuration Form - Supported NAS Cluster Configurations

Cluster with HA Appliance Nodes (MDCs)

To create a NAS cluster:

  1. Open the Manage NAS application.
  2. Click Create new NAS cluster. The screen opens to the gateways configuration form.
  3. Enter the name of the NAS cluster.
  4. Select the Xcellis Workflow Director or StorNext MDC to manage the NAS cluster.
  5. To create a NAS cluster made up of the server node(s) of a Quantum appliance, select the node in the NAS capable gateways and MDCs available to add to this cluster section. For high-availability, dual-node appliances, when you select one of the nodes, the other node is selected automatically.

    OR

    To create a NAS cluster made up of one or more gateway appliance nodes, select the gateway(s) in the NAS capable gateways and MDCs available to add to this cluster section.

  6. Select one node of the NAS cluster to be the master.

    The NAS master gateway list includes only the NAS gateways selected in the NAS capable gateways and MDCs available to add to this cluster section. If the NAS cluster is made up of the MDC nodes of an HA appliance pair, Quantum strongly recommends that you designate Node 2 (that is, the physical node labeled Node 2 in your system's rack) as the master node.

  7. Enter the virtual IP (VIP) address for the NAS cluster.

    Additional Information

    The StorNext Connect system must be able to route to the NAS VIP for successful NAS operations, including share creation.

    Additionally, the NAS VIP address is used to configure StorNext NAS failover for NAS clusters (supporting SMB or NFS V4 connections). In the event that the active master node becomes unavailable, the NAS VIP allows for NAS failover by transferring 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, clients should always connect to the NAS cluster through the NAS VIP or virtual hostname assigned to the NAS VIP.

    To learn about the specific requirements for setting a NAS VIP, see Set the VIP for a NAS Cluster in the Appliance Controller Documentation Center.

  8. If you will configure NFS shares for the NAS cluster, select the Enable NFS failover on this cluster check box to enable NFS failover.

    Additional Information

    This check box is available only for a NAS cluster consisting of Xcellis Workflow Director (CentOS 7) NAS gateways with StorNext NAS 1.3.0 or later.

    When NFS failover is enabled, NFS V3 is disabled on both nodes and NFS V4 is disabled on the node that is not master. NFS V4 is enabled on the master node only. In this case, NFS clients should use the NAS VIP to mount shares.

    When NFS failover is disabled, both NFS V3 and NFS V4 are enabled on both nodes. In this case, NFS clients should use the IP address of the master node to mount shares.

  9. Click Create cluster. The Review Pending changes page opens.
  10. Confirm the changes and click Commit changes to commit the changes to the NAS software, OR click Discard all changes to exit without saving or committing changes.