How to know the hard disk size

fdisk -l | grep Disk

df -h

Plesk passwords in Linux and Windows

Linux:

root@localhost#cat /etc/psa/.psa.shadow
“Password”

Windows:

Check the Plesk installation path:
Via command prompt:
C:\SWSoft\Plesk\admin\bin\>”plesksrvclient.exe” -get
Password will be displayed in a dialog box