7.3. Enabling Kernel Modules

Execute the following commands to enable kernel modules:

You must ensure that the dm_thin_pool and target_core_user modules are loaded in the Red Hat Gluster Storage nodes.
```
# modprobe target_core_user
```
```
# modprobe dm_thin_pool
```
Execute the following command to verify if the modules are loaded:
```
# lsmod | grep dm_thin_pool
```
```
# lsmod | grep target_core_user
```
Note
To ensure these operations are persisted across reboots, create the following files and update each file with the content as mentioned:
```
# cat /etc/modules-load.d/dm_thin_pool.conf
dm_thin_pool
```
```
# cat /etc/modules-load.d/target_core_user.conf
target_core_user
```
You must ensure that the dm_multipath module is loaded on all OpenShift Container Platform nodes.
```
# modprobe dm_multipath
```
Execute the following command to verify if the modules are loaded:
```
# lsmod | grep dm_multipath
```
Note
To ensure these operations are persisted across reboots, create the following file and update it with the content as mentioned:
```
# cat /etc/modules-load.d/dm_multipath.conf
dm_multipath
```

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