We need add a new partition disk space

We are looking for senior Linux to help add new disk space to one already in use, we are talking about a WHM platform that has a KVM disk in use and that a new disk has just been added but it could not be attached to the main disk. You must have knowledge of partitioning - ssh - lvm and its derived commands.

We have a Centos 7 CENTOS 7.9 kvm with WHM v96.0.11