15 

    16 FS stats

    17 ========

    18 

    19 Free space::

    20 

    21   $ df

    22 

    23 Free space in MB::

    24 

    25   $ df -m

    26 

    27 Free space in human readable format::

    28 

    29   $ df -h

    30 

    31 Number of free nodes::

    32 

    33   $ df -i

    34 

    35 FS limits

    36 =========

    37 

    38 ``ext4`` uses 32-bit inode numbers so number of files limited to 2^32.

    39 

    40 ===== ==== ====== ======= ======= ========

    41    fs name  inode sub-dir    file fs total

    42 ===== ==== ====== ======= ======= ========

    43  ext2  255                  2 TiB   16 TiB

    44  ext3  255          32000   2 TiB   16 TiB

    45  ext4  255   2^32   64000  16 TiB   16 TiB

    46 fat32  255 268e+6    2^16   2 GiB    8 TiB

    47  ntfs  255   2^32          16 TiB  256 TiB

    48   xfs  255                100 TiB  100 TiB

    49  gfs2  255                100 TiB  100 TiB

    50 ===== ==== ====== ======= ======= ========

    51 

    52 https://en.wikipedia.org/wiki/Comparison_of_file_systems#Limits

    53   FS limits.