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Chapter 1. Cluster health
1.1. Verifying OpenShift Container Storage is healthy
Storage health is visible on the Persistent Storage and Object Service dashboards.
Procedure
- Log in to OpenShift Web Console.
Check the Status card in the following locations.
-
Home
Dashboards OCS PV Home
Dashboards OCS Object Service If Green Tick appears on the Status card, the cluster is healthy.
If the state is not Healthy, see Section 1.2, “Storage health levels and cluster state” for more information about the current state and any alerts that appear.
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Home
1.2. Storage health levels and cluster state
Status information and alerts related to OpenShift Container Storage are displayed in the storage dashboards.
1.2.1. Persistent storage dashboard indicators
The Persistent Storage dashboard (OCS PV tab) shows the state of OpenShift Container Storage as a whole, as well as the state of persistent volumes.
The states that are possible for each resource type are listed in the following table.
| State | Icon | Description |
|---|---|---|
| UNKNOWN | - | OpenShift Container Storage is not deployed or unavailable. |
| Green Tick |
| Cluster health is good. |
| Warning |
| When Ceph cluster is in a warning state. Alert will be displayed containing the issue with the Ceph system. |
| Error |
| When the Ceph cluster has encountered an error and some component is nonfunctional. Alert will be displayed containing the details. |
1.2.2. Object Service dashboard indicators
The Object Service dashboard (OCS Object Service tab) shows the state of the Multicloud Object Gateway and any object claims in the cluster.
The states that are possible for each resource type are listed in the following table.
| State | Description |
|---|---|
| Green Tick | Object Storage is healthy. |
| Multicloud Object Gateway is not running | Shown when NooBaa system is not found. |
| All resources are unhealthy | Shown when all NooBaa pools are unhealthy. |
| Many buckets have issues | Shown when >= 50% of buckets encounter error(s). |
| Some buckets have issues | Shown when >= 30% of buckets encounter error(s). |
| Unavailable | Shown when network issues and/or errors exist. |
1.2.3. Alert panel
The Alert panel appears below the Status card in both the Persistent Storage (OCS PV) dashboard and the Object Service (OCS Object Service) dashboard when the cluster state is not healthy.
Information about specific alerts and how to respond to them is available in Troubleshooting OpenShift Container Storage.
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