hard drive – 1 TB HDD is not visible at all after installing Ubuntu 20.04 on 256 GB SSD on Lenovo Thinkbook 15 g2 core i5 11th gen laptop

Good day!
I have installed Ubuntu 20.04 on 256 GB SSD disk(single boot). Installation progress was fine. However, I cannot see my 1TB HDD disk using Disks, Gparted, and terminal commands. I have made a research about the problem on the Internet. But they was not helpful.
Help me guys to solve that problem, please! Because I love using Ubuntu than Windows.