12.5.

# virsh vol-list --pool RHEL-Storage-Pool --details
 Name                Path                                               Type   Capacity  Allocation
---------------------------------------------------------------------------------------------
 .bash_history       /home/VirtualMachines/.bash_history       file  18.70 KiB   20.00 KiB
 .bash_logout        /home/VirtualMachines/.bash_logout        file    18.00 B    4.00 KiB
 .bash_profile       /home/VirtualMachines/.bash_profile       file   193.00 B    4.00 KiB
 .bashrc             /home/VirtualMachines/.bashrc             file   1.29 KiB    4.00 KiB
 .git-prompt.sh      /home/VirtualMachines/.git-prompt.sh      file  15.84 KiB   16.00 KiB
 .gitconfig          /home/VirtualMachines/.gitconfig          file   167.00 B    4.00 KiB
 RHEL_Volume.qcow2   /home/VirtualMachines/RHEL8_Volume.qcow2  file  60.00 GiB   13.93 GiB

# virsh vol-info --pool RHEL-Storage-Pool --vol RHEL_Volume.qcow2
Name:           RHEL_Volume.qcow2
Type:           file
Capacity:       60.00 GiB
Allocation:     13.93 GiB

# virsh vol-create-as --pool guest-images-fs --name vm-disk1 --capacity 20 --format qcow2

<disk type='volume' device='disk'>
    <driver name='qemu' type='qcow2'/>
    <source pool='guest-images-fs' volume='vm-disk1'/>
    <target dev='hdk' bus='ide'/>
</disk>

# virsh attach-device --config testguest1 ~/vm-disk1.xml

# virsh vol-list --pool RHEL-SP
 Name                 Path
---------------------------------------------------------------
 .bash_history        /home/VirtualMachines/.bash_history
 .bash_logout         /home/VirtualMachines/.bash_logout
 .bash_profile        /home/VirtualMachines/.bash_profile
 .bashrc              /home/VirtualMachines/.bashrc
 .git-prompt.sh       /home/VirtualMachines/.git-prompt.sh
 .gitconfig           /home/VirtualMachines/.gitconfig
 vm-disk1             /home/VirtualMachines/vm-disk1

# virsh vol-wipe --pool RHEL-SP vm-disk1
Vol vm-disk1 wiped

# virsh vol-delete --pool RHEL-SP vm-disk1
Vol vm-disk1 deleted