20.12. 检索有关您的虚拟机的信息

# virsh domblklist guest1

Target     Source
------------------------------------------------
vda        /VirtualMachines/guest1.img
hdc        -

# virsh domblkstat guest1 vda --human
Device: vda
 number of read operations:      174670
 number of bytes read:           3219440128
 number of write operations:     23897
 number of bytes written:        164849664
 number of flush operations:     11577
 total duration of reads (ns):   1005410244506
 total duration of writes (ns):  1085306686457
 total duration of flushes (ns): 340645193294