1.2.2. Must-gather procedure

See the following procedure to start using the must-gather command:

Learn about the must-gather command and install the prerequisites that you need at Gathering data about your cluster in the Red Hat OpenShift Container Platform documentation.
Log in to your cluster. For the usual use-case, you should run the must-gather while you are logged into your hub cluster.
Note: If you want to check your managed clusters, find the gather-managed.log file that is located in the the cluster-scoped-resources directory:
```
<your-directory>/cluster-scoped-resources/gather-managed.log>
```
Check for managed clusters that are not set True for the JOINED and AVAILABLE column. You can run the must-gather command on those clusters that are not connected with True status.
Add the Red Hat Advanced Cluster Management for Kubernetes image that is used for gathering data and the directory. Run the following command, where you insert the image and the directory for the output:
```
oc adm must-gather --image=registry.redhat.io/rhacm2/acm-must-gather-rhel8:v2.2.0 --dest-dir=<directory>
```
Go to your specified directory to see your output, which is organized in the following levels:
- Two peer levels: cluster-scoped-resources and namespace resources.
- Sub-level for each: API group for the custom resource definitions for both cluster-scope and namespace-scoped resources.
- Next level for each: YAML file sorted by kind.