--- title: "Managing Cluster Connections" slug: "managing-cluster-connections" tags: ["5.5"] updated: 2026-10-27T23:00:54Z published: 2026-10-27T23:00:54Z canonical: "docs.vastdata.com/managing-cluster-connections" --- > ## Documentation Index > Fetch the complete documentation index at: https://docs.vastdata.com/llms.txt > Use this file to discover all available pages before exploring further. # Managing Cluster Connections - [Connecting Clusters to DataSpace](/docs-5-5/docs/managing-cluster-connections#connecting-clusters-to-dataspace) - [Viewing Connected Clusters](/docs-5-5/docs/managing-cluster-connections#viewing-connected-clusters) - [Opening a Cluster](/docs-5-5/docs/managing-cluster-connections#opening-a-cluster) - [Updating User Credentials for a Connected Cluster](/docs-5-5/docs/managing-cluster-connections#updating-user-credentials-for-a-connected-cluster) - [Removing a Connected Cluster](/docs-5-5/docs/managing-cluster-connections#removing-a-connected-cluster) ## Connecting Clusters to DataSpace As a prerequisite, ensure that the cluster you are going to connect to VAST DataSpace, is configured with an IPv4 management IP. VAST clusters with IPv6 management IPs cannot be added to VAST DataSpace. If you configured a remote cluster as a replication peer, that remote cluster is automatically added to VAST DataSpace provided it has connectivity to the local cluster through the management network. In order to configure replication or global access involving the local cluster as a source or destination, you must connect the local cluster to VAST DataSpace as well as the other clusters that will participate. 1. In the VAST Web UI, open the DataSpace page (select DataSpace from the left navigation menu.) 2. From the Add New dropdown, select Connect My Clusters. 3. Complete the fields for one of the clusters that you want to connect to DataSpace: | VMS IP | Enter the IP of the cluster's VMS. | | --- | --- | | Username | Enter a valid VMS username for the cluster. | | Password | Enter the password for the specified user. | 4. If you want to add another cluster, click Add Another and then enter the details for another cluster. 5. Optionally repeat the previous step for additional clusters. 6. When you are done, click Create. Each cluster that you added now has a card that appears in the Cluster Cards tab. ## Viewing Connected Clusters The DataSpace page provides the following tools to view currently connected clusters and information about them: - [A graphic topology view of the connected clusters](/docs-5-5/docs/managing-cluster-connections#viewing-cluster-topology). This shows which clusters are connected to the local cluster through multi-cluster management and any connections that are established between them. - [The Cluster Cards tab](/docs-5-5/docs/managing-cluster-connections#viewing-cluster-cards), showing information about each connected cluster on a card. - [The Clusters Table tab](/docs-5-5/docs/managing-cluster-connections#viewing-the-clusters-table), which shows details about the connected clusters in a tabular format. ### Viewing Cluster Topology ![DSTopology.png](https://cdn.us.document360.io/89b91113-5dc6-49db-86ec-57b16dc8ce56/Images/Documentation/img-b2cfbdc148bd12e36c637b2aed643cbd(7).png?sv=2026-02-06&spr=https&st=2026-11-08T09%3A06%3A33Z&se=2026-11-08T10%3A06%3A33Z&sr=c&sp=r&sig=qCzjxtQKvYatrhMqHo9JHjE1Ev0S9ZsFZInIyVGnZVg%3D) The topology shows: 1. Any connected clusters. 2. Any connections established between connected clusters. You can: - Click or hover on a cluster (1) to highlight up the cluster's card in the Cluster Cards tab. - Click a replication connection to identify its record in the Paths tab. - Click a Global Access connection to view it's configuration. - Click ![HowToRead.png](https://cdn.us.document360.io/89b91113-5dc6-49db-86ec-57b16dc8ce56/Images/Documentation/img-92401f0082de477ac881e23310845311(8).png?sv=2026-02-06&spr=https&st=2026-11-08T09%3A06%3A33Z&se=2026-11-08T10%3A06%3A33Z&sr=c&sp=r&sig=qCzjxtQKvYatrhMqHo9JHjE1Ev0S9ZsFZInIyVGnZVg%3D) (3) for a complete guide to the graphic representation of the topology, including cluster types ([VoC](/docs-5-5/docs/vast-on-cloud-overview) or on-premises), capacity, bandwidth and IOPS in the topology.VAST on Cloud ### Viewing Cluster Cards On the Cluster Cards tab, each cluster's card provides shows the alarm status of the cluster, the following details are shown per cluster: ![cluster_card.png](https://cdn.us.document360.io/89b91113-5dc6-49db-86ec-57b16dc8ce56/Images/Documentation/img-f2bc93eacfbcaa3c4f2257f8eb5719cc(8).png?sv=2026-02-06&spr=https&st=2026-11-08T09%3A06%3A33Z&se=2026-11-08T10%3A06%3A33Z&sr=c&sp=r&sig=qCzjxtQKvYatrhMqHo9JHjE1Ev0S9ZsFZInIyVGnZVg%3D) 1. Cluster details: - Data Usage. Shows how much physical data storage capacity there is on the cluster and how much of it is in use. - BW. The data transmission rate on the connection between the cluster and its client network. - IOPS. The number of I/O operations per second on the connection between the cluster and its client network. - Latency. The time needed to perform an I/O operation on the connection between the cluster and its client network. 2. Open Cluster button. Opens the Cluster's VMS in another browser tab. 3. Alarm status 4. Buttons for [removing the cluster](/docs-5-5/docs/managing-cluster-connections#removing-a-connected-cluster) from DataSpace and [updating user credentials](/docs-5-5/docs/managing-cluster-connections#updating-user-credentials-for-a-connected-cluster). ### Viewing the Clusters Table On the Clusters Table tab you can display the following columns: - Name The name of the cluster. - Logical Space The amount of logical capacity on the cluster. - Logical Space Used The amount of logical capacity in use on the cluster. - Region If the cluster is a VAST on Cloud cluster, this column displays the AWS region where the cluster resides. - State The state of the cluster: - INIT. Initializing the cluster. - ACTIVATING. The cluster is being activated. - ONLINE. The cluster is online. - DEACTIVATING. The cluster is being deactivated. - OFFLINE. The cluster is offline. - FAILED. The cluster has failed. - UNKNOWN. DataSpace is unable to detect the cluster state. You can use the right-click menu to export any row or selected rows to a CSV file. ## Opening a Cluster To open the VMS of a connected cluster, click the Open Cluster button on the cluster's card. The VMS of the cluster opens in a browser tab. ## Updating User Credentials for a Connected Cluster If the user credentials that were supplied when a cluster was connected are changed on the remote cluster, the cluster becomes disconnected. Update the user credentials to restore the connection. To update the credentials for a connected cluster: 1. Click the ![update_user_creds.png](https://cdn.us.document360.io/89b91113-5dc6-49db-86ec-57b16dc8ce56/Images/Documentation/img-0b71cedebe6123eda1e53cb56aa1eaf0(8).png?sv=2026-02-06&spr=https&st=2026-11-08T09%3A06%3A33Z&se=2026-11-08T10%3A06%3A33Z&sr=c&sp=r&sig=qCzjxtQKvYatrhMqHo9JHjE1Ev0S9ZsFZInIyVGnZVg%3D) button. 2. Enter a valid username and password for the cluster's VMS in the fields provided. 3. Click Create. ## Removing a Connected Cluster 1. Click the ![remove_connected_cluster.png](https://cdn.us.document360.io/89b91113-5dc6-49db-86ec-57b16dc8ce56/Images/Documentation/img-ad2f4e163446a5e77936dac399f44af5(8).png?sv=2026-02-06&spr=https&st=2026-11-08T09%3A06%3A33Z&se=2026-11-08T10%3A06%3A33Z&sr=c&sp=r&sig=qCzjxtQKvYatrhMqHo9JHjE1Ev0S9ZsFZInIyVGnZVg%3D) button. 2. Click Yes to confirm the removal. The cluster is removed from DataSpace.