A physical or virtual station that hosts CLM software requires a specific disk partitioning scheme. You can create the required disk partitions on the station:

• during the deployment of a RHEL OS disk image, as described in Disk-image deployment for CLM

• after a manual RHEL OS installation, using the partitioning scheme in Disk partitioning for live deployments

Supported file systems

For OS-deployed disk partitions such as /, /home, /tmp, /opt, and /var, the CLM supports ext4 or XFS, with the following exception:

• The /var/log and /var/log/audit partitions require XFS.

For CLM application partitions such as /opt/nsp and child partitions, ext4 is required, with the following exception:

• /extra, which can be mounted as ext4 or XFS

Additional disk configuration

Regardless of the disk deployment method, each partition created after the OS installation requires the additional configuration described in To configure and mount a CLM disk partition.

The CLM uses NSP OEM disk images for deploying a RHEL OS instance. Images are available in the following formats:

• qcow2

• OVA

The following image is available in each format:

• CLM deployer host / CLM cluster VM image

Note: RHEL image deployment is authorized only for CLM software installation, and not for the installation of any other Nokia or third-party product.

A RHEL disk image:

• contains only the RHEL OS

• has all required and optional OS packages to support CLM software deployment

• does not include any product-specific packages or application files

• has SELinux enabled in permissive mode

qcow2 image deployment

For qcow2 image deployment, see To deploy a RHEL qcow2 disk image.

OVA image deployment

Deploying the CLM on VMWare has the following requirements.

• You must ensure that each non-LVM partition is mounted using the partition UUID, rather than the block device name; see To configure disk partitions using device UUIDs for information.

• If you use cloud-init to set the IP address of a CLM VM on VMWare, you must perform To apply the VMware cloud-init workaround before you attempt to install any CLM software on the VM.

For general OVA image deployment information, see the documentation for your virtualization environment.

Note: For a CLM deployer host or CLM cluster VM deployed using the OVA image, it is strongly recommended that you mount the /opt directory on a separate hard disk that has sufficient capacity to allow for future expansion.