1. 查看块属性
# rbd ls
# rbd info
rbd info 块条带大小
size 1024 MB in 256 objects
块条带M = size / objects = 4 M 块映射列表
rbd showmapped
查看挂载文件格式
# df -Th解映射
# rbd unmap /dev/rbd2
rbd unmap 删除块设备
# rbd ls rbd
rbd ls {poolname}
rbd rm {image-name}rbd -p {poolname} info {image-name}