Step 1, select the virtual machine that you want to add in the resource list
Step 2, click on the Disk options
Step 3, select a new hard disk in the data disk
Step 4, fill in the disk size and other content according to your own needs
Step 5, click Save
Step 6, add it successfully
Step 7, formatting the disk
Use the fdisk-l command to view the disk
Step 8, format the hard disk file system
mkfs -t ext4 /dev/sdc
Step 9, mount the hard drive
Create a directory that you want to mount
mkdir /onldata
Mount the hard disk to the folder
mount /dev/sdc /onldata
Step 10, boot on automatic mount
vim /etc/fstab
