6.2. Enabling Kernel Modules

Before running the cns-deploy tool, you must ensure that the dm_thin_pool, dm_multipath, and target_core_user modules are loaded in the OpenShift Container Platform node. Execute the following command on all OpenShift Container Platform nodes to verify if the modules are loaded:

# lsmod | grep dm_thin_pool

# lsmod | grep dm_multipath

# lsmod | grep target_core_user

If the modules are not loaded, then execute the following command to load the modules:

# modprobe dm_thin_pool

# modprobe dm_multipath

# modprobe target_core_user

# cat /etc/modules-load.d/dm_thin_pool.conf
dm_thin_pool

# cat /etc/modules-load.d/dm_multipath.conf
dm_multipath

# cat /etc/modules-load.d/target_core_user.conf
target_core_user