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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:
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# lsmod | grep dm_thin_pool
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# lsmod | grep dm_multipath
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# lsmod | grep target_core_user
If the modules are not loaded, then execute the following command to load the modules:
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# modprobe dm_thin_pool
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# modprobe dm_multipath
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# modprobe target_core_user

Note

To ensure these operations are persisted across reboots, create the following files and update each with the content as mentioned:
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# cat /etc/modules-load.d/dm_thin_pool.conf
dm_thin_pool
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# cat /etc/modules-load.d/dm_multipath.conf
dm_multipath
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# cat /etc/modules-load.d/target_core_user.conf
target_core_user
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