josh@orion:~$ sudo dumpe2fs -h /dev/sdc2
dumpe2fs 1.42 (29-Nov-2011)
Filesystem volume name:   <none>
Last mounted on:          /
Filesystem UUID:          c8803f0e-e0ea-45dc-8642-d215e00496ff
Filesystem magic number:  0xEF53
Filesystem revision #:    1 (dynamic)
Filesystem features:      has_journal ext_attr resize_inode dir_index filetype needs_recovery extent flex_bg sparse_super large_file huge_file uninit_bg dir_nlink extra_isize
Filesystem flags:         signed_directory_hash
Default mount options:    user_xattr acl
Filesystem state:         clean
Errors behavior:          Continue
Filesystem OS type:       Linux
Inode count:              5324800
Block count:              21282048
Reserved block count:     1064102
Free blocks:              18742683
Free inodes:              4995911
First block:              0
Block size:               4096
Fragment size:            4096
Reserved GDT blocks:      1018
Blocks per group:         32768
Fragments per group:      32768
Inodes per group:         8192
Inode blocks per group:   512
Flex block group size:    16
Filesystem created:       Thu Jun  6 22:41:48 2013
Last mount time:          Sun Jun  9 10:54:46 2013
Last write time:          Thu Jun  6 23:01:35 2013
Mount count:              16
Maximum mount count:      -1
Last checked:             Thu Jun  6 22:41:48 2013
Check interval:           0 (<none>)
Lifetime writes:          16 GB
Reserved blocks uid:      0 (user root)
Reserved blocks gid:      0 (group root)
First inode:              11
Inode size:	          256
Required extra isize:     28
Desired extra isize:      28
Journal inode:            8
First orphan inode:       2883626
Default directory hash:   half_md4
Directory Hash Seed:      4a1e797b-c821-4c44-a19b-7ca7a2136c29
Journal backup:           inode blocks
Journal features:         journal_incompat_revoke
Journal size:             128M
Journal length:           32768
Journal sequence:         0x0000ac2e
Journal start:            1