Root Partitions /Dev/Root

Before installing OS and Centos Web Panel, make sure the Root Partition is at 500 gig.  Otherwise, you will run out of space /Dev/Root.  This is the mistake I did when partitioning the root.   Server's default is 20 gig.   I went to 100 gig and still run into issues.

If you run out of space at /Dev/Root.  Do the following

• Disable Backups and delete all backups
• Delete Nginx Log

I have set mine to 15 GiB and not facing any issue after the CWP installation, or otherwise

Filesystem                        Size  Used Avail Use% Mounted on
/dev/mapper/centos-root            15G  3.3G   11G  24% /
devtmpfs                          966M     0  966M   0% /dev
tmpfs                             977M     0  977M   0% /dev/shm
tmpfs                             977M   33M  944M   4% /run
tmpfs                             977M     0  977M   0% /sys/fs/cgroup
/dev/sda1                        1014M  156M  859M  16% /boot
/dev/mapper/centos-tmp            2.0G   15M  1.8G   1% /tmp
/dev/mapper/centos-var            4.8G  602M  4.0G  13% /var
/dev/mapper/centos-home           459G   73M  436G   1% /home
/dev/mapper/centos-var_tmp        2.0G  6.1M  1.8G   1% /var/tmp
/dev/mapper/centos-var_www        4.8G   20M  4.6G   1% /var/www
/dev/mapper/centos-var_log        976M  9.8M  899M   2% /var/log
/dev/mapper/centos-var_log_audit  976M  7.1M  902M   1% /var/log/audit
tmpfs                             196M     0  196M   0% /run/user/0

I believe this works fine with even 20GB /dev/mapper/root space.

Your backups might be taking up space depending on what you are running.

If Backups or logs are taking a lot of root space.

You might have to consider adding further disk and creating segregated file system and bind those location.