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13.2. 克隆卷

新卷将从与要克隆的卷相同的存储池中分配。 virsh vol-clone 必须具有 --pool 参数，该参数指明要克隆包含卷的存储池的名称。命令的其余部分命名要克隆的卷(volume3)和已克隆的新卷的名称(clone1)。virsh vol-list 命令列出存储池中存在的卷(guest_images_disk)。 
# virsh vol-clone --pool guest_images_disk volume3 clone1
Vol clone1 cloned from volume3

# virsh vol-list guest_images_disk
Name                 Path
-----------------------------------------
volume1              /dev/sdb1
volume2              /dev/sdb2
volume3              /dev/sdb3
clone1               /dev/sdb4


# parted -s /dev/sdb print
Model: ATA ST3500418AS (scsi)
Disk /dev/sdb: 500GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos

Number  Start   End     Size    File system  Name     Flags
1      4211MB  12.8GB  8595MB  primary
2      12.8GB  21.4GB  8595MB  primary
3      21.4GB  30.0GB  8595MB  primary
4      30.0GB  38.6GB  8595MB  primary