答案:root@master ~]# docker info Containers: 0 Running: 0 Paused: 0 Stopped: 0Images: 0Server Version: 18.09.6Storage Driver: devicemapper Pool Name: docker-253:0-272940-pool Pool Blocksize: 65.54kB Base Device Size: 10.74GB Backing Filesystem: xfs Udev Sync Supported: true Data file: /dev/loop0 Metadata file: /dev/loop1 Data loop file: /var/lib/docker/devicemapper/devicemapper/data Metadata loop file: /var/lib/docker/devicemapper/dev