KVM之virsh管理虚拟机硬盘配置

新建raw格式虚拟盘

[root@ubuntu ~]# qemu-img create -f raw /data/raw/disk02.raw 5G

Formatting '/data/raw/disk02.raw', fmt=raw size=5368709120

[root@ubuntu ~]# qemu-img  info /data/raw/disk02.raw

image: /data/raw/disk02.raw

file format: raw

virtual size: 5.0G (5368709120 bytes)

disk size: 0

挂载到虚拟机

[root@ubuntu ~]# virsh attach-disk centosv6.5.23_01 [--source] /data/raw/disk02.raw sdb --subdriver=raw --live --config

Disk attached successfully

查看块设备

[root@ubuntu ~]# virsh  domblklist centosv6.5.23_01

Target     Source

------------------------------------------------

hda        /data/raw/disk01.raw

hdc        -

sdb        /data/raw/disk02.raw

从虚拟机卸载虚拟盘

[root@ubuntu ~]# virsh detach-disk centosv6.5.23_01 [--target] sdc --live --config