First block: 1
Block size: 1024
Fragment size: 1024
Reserved GDT blocks: 256
Blocks per group: 8192
Fragments per group: 8192
Inodes per group: 2008
Inode blocks per group: 251
Filesystem created: Mon Aug 12 19:59:14 2013
Last mount time: Sat Aug 31 20:35:07 2013
Last write time: Sat Aug 31 20:35:07 2013
Mount count: 16
Maximum mount count: -1
Last checked: Mon Aug 12 19:59:14 2013
Check interval: 0 ()
Reserved blocks uid: 0 (user root)
Reserved blocks gid: 0 (group root)
First inode: 11
Inode size: 128
Journal inode: 8
Default directory hash: tea
Directory Hash Seed: 12499f4f-6bd0-40d2-8a7a-6224b8f449dd
Journal backup: inode blocks
B、扇区：512字节操作
系统一次IO的大小
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[root@mydb ~]# fdisk -l
Disk /dev/sda: 26.8 GB, 26843545600 bytes
255 heads, 63 sectors/track, 3263 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sda1 * 1 13 104391 83
Linux
/dev/sda2 14 144 1052257+ 82 Linux swap / Solaris
/dev/sda3 145 3263 25053367+ 83 Linux