查看磁盘分区情况

# 查看磁盘分区  lsblk
[henry@192 henry-sylar]$ lsblk
NAME   MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
sda      8:0    0  100G  0 disk 
├─sda1   8:1    0  300M  0 part /boot
├─sda2   8:2    0    2G  0 part [SWAP]
└─sda3   8:3    0 97.7G  0 part /
sr0     11:0    1 1024M  0 rom  

# 查看某个目录属于哪个磁盘  df -h  file_path
[henry@192 var]$ df -h /usr
Filesystem      Size  Used Avail Use% Mounted on
/dev/sda3        98G  8.4G   90G   9% /