The Health/Cluster details page provides detailed information about a selected cluster, such as health, capacity, and configuration details. You can also view information about the logical interfaces (LIFs), nodes, disks, related devices, and related alerts for the cluster.
The status next to the cluster name, for example (Good), represents the communication status; whether Unified Manager can communicate with the cluster. It does not represent the failover status or overall status of the cluster.
The command buttons enable you to perform the following tasks for the selected cluster:
If Unified Manager is paired with OnCommand Workflow Automation, the rediscovery operation also reacquires cached data from WFA, if any.
After the rediscovery operation is initiated, a link to the associated job details is displayed to enable tracking of the job status.
Displays detailed information about the data availability and data capacity issues of various cluster objects such as nodes, SVMs, and aggregates. Availability issues are related to the data-serving capability of the cluster objects. Capacity issues are related to the data-storing capability of the cluster objects.
You can click the graph of an object to view a filtered list of the objects. For example, you can click the SVM capacity graph that displays warnings to view a filtered list of SVMs. This list contains SVMs that have volumes or qtrees that have capacity issues with a severity level of Warning. You can also click the SVMs availability graph that displays warnings to view the list of SVMs that have availability issues with a severity level of Warning.
Displays detailed information about the capacity of the selected cluster.
Displays the total capacity of the cluster. This does not include the capacity that is assigned for parity.
Displays the capacity that is used by data. This does not include the capacity that is used for parity, right-sizing, and reservation.
Displays the capacity available for data.
Displays the storable capacity available for storage in all the spare disks.
Displays the capacity that is provisioned for all the underlying volumes.
Displays the space used by data in configured cloud tiers.
For an Amazon S3, Microsoft Azure Cloud, IBM Cloud Object Storage, or Alibaba Cloud Object Storage, the chart displays the total data capacity that has been licensed by this cluster and the amount being used by aggregates.
For a StorageGRID, the chart displays only the total capacity being used by aggregates.
Displays the total capacity of the cluster. This does not include the capacity that is assigned for parity.
Displays the capacity that is used by data. This does not include the capacity that is used for parity, right-sizing, and reservation.
Displays the capacity available for data.
Displays the capacity that is provisioned for all the underlying volumes.
Displays the storable capacity available for storage in all the spare disks.
Displays the space used by data in configured cloud tiers. For an Amazon S3, Microsoft Azure Cloud, IBM Cloud Object Storage, or Alibaba Cloud Object Storage, the total data capacity that has been licensed by this cluster is also displayed.
Displays the available capacity and spare capacity of the data disks.
Graphically displays the used capacity and available capacity of all the HDD data disks in the cluster. The dotted line represents the spare capacity of the data disks in the HDD.
Graphically displays the used capacity and available capacity of the SSD data disks in the cluster.
Graphically displays the storable capacity of the SSD cache disks in the cluster.
Graphically displays the spare capacity of the SSD, data, and cache disks in the cluster.
Displays the number of unassigned disks in the cluster.
Indicates that the aggregate has a capacity-related issue of a certain severity.
You can move the pointer over the status to view more information about the event or events generated for the aggregate.
If the status of the aggregate is determined by a single event, you can view information such as the event name, time and date when the event was triggered, the name of the administrator to whom the event is assigned, and the cause of the event. You can click the View Details button to view more information about the event.
If the status of the aggregate is determined by multiple events of the same severity, the top three events are displayed with information such as the event name, time and date when the events are triggered, and the name of the administrator to whom the event is assigned. You can view more details about each of these events by clicking the event name. You can also click the View All Events link to view the list of generated events.
Displays the name of the aggregate.
Graphically displays information about the aggregate capacity usage (in percentage).
Displays the estimated number of days remaining before the aggregate reaches full capacity.
Displays details about the selected cluster, such as IP address, serial number, contact, and location:
Displays the cluster-management LIF that Unified Manager uses to connect to the cluster. The operational status of the LIF is also displayed.
Displays the FQDN, short name, or the IP address of the cluster-management LIF that Unified Manager uses to connect to the cluster.
Displays the fully qualified domain name (FQDN) of the cluster.
Displays the ONTAP version that the cluster is running. If the nodes in the cluster are running different versions of ONTAP, then the earliest ONTAP version is displayed.
Displays the serial number of the cluster.
Displays details about the administrator whom you should contact in case of issues with the cluster.
Displays the location of the cluster.
Provides details about the remote cluster in a MetroCluster configuration. This information is displayed only for MetroCluster configurations.
Displays the name of the remote cluster. You can click the cluster name to navigate to the details page of the cluster.
Displays the FQDN, short name, or IP address of the remote cluster.
Displays the serial number of the remote cluster.
Displays the location of the remote cluster.
Provides details about the local cluster in a MetroCluster configuration. This information is displayed only for MetroCluster configurations.
Displays whether the MetroCluster type is two-node or four-node.
Displays whether automated unplanned switchover is enabled for the local cluster. By default, AUSO is enabled for all clusters in a two-node MetroCluster configuration in Unified Manager. You can use the command-line interface to change the AUSO setting.
Displays the number of nodes that are up () or down (
) in the cluster.
Displays the ONTAP versions that the nodes are running as well as the number of nodes running a particular version of ONTAP. For example, 9.0 (2), 8.3 (1) specifies that two nodes are running ONTAP 9.0, and one node is running ONTAP 8.3.
Displays the number of SVMs that are up () or down (
) in the cluster.
Displays the number of non-data LIFs that are up () or down (
) in the cluster.
Displays the number of cluster-management LIFs.
Displays the number of node-management LIFs.
Displays the number of cluster LIFs.
Displays the number of intercluster LIFs.
Displays the list of licensed data protocols that are enabled for the cluster. The data protocols include iSCSI, CIFS, NFS, NVMe, and FC/FCoE.
Displays the issues and connectivity status of the cluster components in the MetroCluster configuration. A cluster is displayed in a red box when the disaster recovery partner of the cluster has issues.
You can navigate to the details page of a remote cluster by clicking the name of the remote cluster. You can also view the details of the components by clicking the count link of a component. For example, clicking the count link of the node in the cluster displays the node tab in the details page of the cluster. Clicking the count link of the disks in the remote cluster displays the disk tab in the details page of the remote cluster.
You can move the pointer over the components to view the details and the connectivity status of the clusters in case of any issue and to view more information about the event or events generated for the issue.
If the status of the connectivity issue between components is determined by a single event, you can view information such as the event name, time and date when the event was triggered, the name of the administrator to whom the event is assigned, and the cause of the event. The View Details button provides more information about the event.
If status of the connectivity issue between components is determined by multiple events of the same severity, the top three events are displayed with information such as the event name, time and date when the events are triggered, and the name of the administrator to whom the event is assigned. You can view more details about each of these events by clicking the event name. You can also click the View All Events link to view the list of generated events.
Displays the status of the data that is being replicated. You can use the MetroCluster Replication tab to ensure data protection by synchronously mirroring the data with the already peered clusters. A cluster is displayed in a red box when the disaster recovery partner of the cluster has issues.
In a MetroCluster environment, you can use this tab to verify the logical connections and peering of the local cluster with the remote cluster. You can view the objective representation of the cluster components with their logical connections. This helps to identify the issues that might occur during mirroring of metadata and data.
In the MetroCluster Replication tab, local cluster provides the detailed graphical representation of the selected cluster and MetroCluster partner refers to the remote cluster.
Displays details about all the non-data LIFs that are created on the selected cluster.
Routing groups are not supported for ONTAP 8.3 or later and therefore a blank column is displayed for these clusters.
Displays information about nodes in the selected cluster. You can view detailed information about the HA pairs, disk shelves, and ports:
You can view information about the availability of the HA pair and take required action to prevent any risks. For example, in the case of a possible takeover operation, the following message is displayed: Storage failover possible.
You can view a list of the events related to the HA pair and its environment, such as fans, power supplies, NVRAM battery, flash cards, service processor, and connectivity of disk shelves. You can also view the time when the events were triggered.
You can view other node-related information, such as the model number and the serial number.
If there are single-node clusters, you can also view details about the nodes.
You can also view events generated for the disk shelves and the environmental components, and the time when the events were triggered.
You can also view the events generated for the ports.
You can view the following port details:
Displays the name of the port. For example, the port names can be e0M, e0a, and e0b.
Displays the role of the port. The possible roles are Cluster, Data, Intercluster, Node-Management, and Undefined.
Displays the physical layer protocol used for the port. The possible types are Ethernet, Fibre Channel, and FCoE.
Displays the World Wide Port Name (WWPN) of the port.
Displays the firmware revision of the FC/FCoE port.
Displays the current state of the port. The possible states are Up, Down, Link Not Connected. or Unknown ().
You can view the port-related events from the Events list. You can also view the associated LIF details, such as LIF name, operational status, IP address or WWPN, protocols, name of the SVM associated with the LIF, current port, failover policy and failover group.
Displays details about the disks in the selected cluster. You can view disk-related information such as the number of used disks, spare disks, broken disks, and unassigned disks. You can also view other details such as the disk name, disk type, and the owner node of the disk.
Certain ONTAP disk types are considered equivalent for the purposes of creating and adding to aggregates, and spare management. ONTAP assigns an effective disk type for each disk type.
Displays in percentage an estimate of the SSD life used, based on the actual SSD usage and the manufacturer's prediction of SSD life. A value greater than 99 indicates that the estimated endurance has been consumed, but may not indicate SSD failure. If the value is unknown, then the disk is omitted.
Enables you to view the annotation details associated with the selected cluster. The details include the annotation name and the annotation values that are applied to the cluster. You can also remove manual annotations from the Related Annotations pane.
Enables you to view device details that are associated with the selected cluster.
The details include properties of the device that is connected to the cluster such as the device type, size, count, and health status. You can click on the count link for further analysis on that particular device.
You can use MetroCluster Partner pane to obtain count and also details on the remote MetroCluster partner along with its associated cluster components such as nodes, aggregates, and SVMs. The MetroCluster Partner pane is displayed only for clusters in a MetroCluster configuration.
Enables you to view the list of groups that includes the selected cluster.
The Related Alerts pane enables you to view the list of alerts for the selected cluster. You can also add an alert by clicking the Add Alert link or edit an existing alert by clicking the alert name.