To analyze the capacity metrics related to the generated alert, you create charts in vRealize Operations Manager that compare different metrics. These comparisons help identify when something changed in your environment and what effect it had on the datastore.

As a network operations engineer, you create custom charts so that you can further investigate the problem, and to determine if implementing the alert recommendations will resolve the problem that the alert identifies.

View the topological map for the data store to determine if related objects are contributing to the alert or if triggering symptoms indicate that the data store is contributing to other problems in your environment. See View the Affected Datastore in Relation to Other Objects.

1

In the left pane of vRealize Operations Manager, click the Alerts icon.

2

Click the alert name link.

The center pane view changes to display the alert detail tabs.

3

Click the Metric Charts tab.

The Metric Charts tab does not include charts. You must add the charts to compare.

4

To analyze the first recommendation, Add more capacity to the Datastore Storage, add related charts to the workspace.

a

Enter capacity in the metric list search text box.

The list displays metrics that contain the search term.

b

Double-click the following metrics to add the following charts to the workspace:

Capacity | Used Space (GB)

Disk Space | Capacity (GB)

Summary | Number of Capacity Consumers

c

Compare the charts.

For example, if the Capacity | Used Space (%) chart shows an increase in used space, but the Disk Space | Capacity (GB) did not increase and the Summary | Number of Capacity Consumers did not decrease, then adding capacity is a solution, but it does not address the root cause.

5

To analyze the second recommendation, vMotion some Virtual Machines to a different Datastore, add related charts to the workspace.

a

Enter vm in the metric list search text box.

b

Double-click the Summary | Total Number of VMs metric to add it to the workspace

c

Compare the 4 charts.

For example, if the Summary | Total Number of VMs chart shows that the number of virtual machines did not increase enough to negatively affect the data store, then moving some of the virtual machines is a solution, but it does not address the root cause.

6

To analyze the third recommendation, Delete unused snapshots of virtual machines, add related charts to the workspace.

a

Enter snapshot in the metric list search text box.

b

Double-click the following metrics to add the charts to the workspace:

Disk Space | Snapshot Space (GB)

Disk Space Reclaimable | Snapshot Space | Waste Value (GB)

c

Compare the charts.

For example, if the amount of Disk Space | Snapshot Space (GB) increased and the Disk Space Reclaimable | Snapshot Space | Waste Value (GB) indicates an area where space can be reclaimed, then deleting unused snapshots will positively affect the data store disk space problem and resolve the alert.

7

If this is a problematic data store that you must continue to monitor, you can create a dashboard.

a

Click the Generate Dashboard button on the workspace toolbar.

b

Enter a name for the dashboard and click OK.

In this example, use a name like Datastore disk space.

The dashboard is added to your available dashboards.

You compared metric charts to determine if the recommendations are valid and which recommendation to implement first. In this example, the Delete unused snapshots of Virtual Machines recommendation appears to be the most likely way to resolve the alert.

Implement the alert recommendations. See Run a Recommendation On a Datastore to Resolve an Alert.