从串行技术出现以来，越来越多客户选择使用大容量的SATA硬盘创建磁盘阵列；特别是MD1000/MD3000，很轻易就突破2T的LUN，故在此给大家一些指引。
红帽企业 Linux 4 Update 4供对大于 2 terabytes（TB）的磁盘设备的支持。

请参考以下操作步骤： 
注： 
蓝色代表你需要使用的命令 
红色代表你需要注意到的输出信息，在后续需要使用 

[root@as4 ~]# fdisk -l
Disk /dev/sda: 35.8 GB, 35862976512 bytes 
255 heads, 63 sectors/track, 4360 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 
/dev/sda3             145        4360    33865020   83  Linux
Disk /dev/sdb: 2147 MB, 2147483648 bytes 
255 heads, 63 sectors/track, 261 cylinders 
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk /dev/sdb doesn't contain a valid partition table 
[root@as4 ~]# parted /dev/sdb 
GNU Parted 1.6.19 
Copyright (C) 1998 - 2004 Free Software Foundation, Inc. 
This program is free software, covered by the GNU General Public License.
This program is distributed in the hope that it will be useful, but WITHOUT ANY 
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A 
PARTICULAR PURPOSE.  See the GNU General Public License for more details.
使用 /dev/sdb 
(parted) mklabel gpt 
(parted) print 
/dev/sdb 的磁盘几何结构：0.000-2048.000 兆字节 
磁盘标签类型：gpt 
Minor    起始点        终止点  文件系统    名称                  标志 
(parted) mkpart primary 0 2048 
(parted) print 
/dev/sdb 的磁盘几何结构：0.000-2048.000 兆字节 
磁盘标签类型：gpt 
Minor    起始点        终止点  文件系统    名称                  标志 
1          0.017   2047.983 
(parted) quit 
信息: 如果必要，不要忘记更新 /etc/fstab。
[root@as4 ~]# fdisk -l
Disk /dev/sda: 35.8 GB, 35862976512 bytes 
255 heads, 63 sectors/track, 4360 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 
/dev/sda3             145        4360    33865020   83  Linux
WARNING: GPT (GUID Partition Table) detected on '/dev/sdb'! The util fdisk doesn't support GPT. Use GNU Parted.
 
Disk /dev/sdb: 2147 MB, 2147483648 bytes 
255 heads, 63 sectors/track, 261 cylinders 
Units = cylinders of 16065 * 512 = 8225280 bytes
   Device Boot      Start         End      Blocks   Id  System 
/dev/sdb1               1         262     2097151+  ee  EFI GPT 
Partition 1 has different physical/logical beginnings (non-Linux?): 
     phys=(0, 0, 1) logical=(0, 0, 2) 
Partition 1 has different physical/logical endings: 
     phys=(1023, 254, 63) logical=(261, 21, 16) 
[root@as4 ~]# mkfs.ext3 /dev/sdb1 
mke2fs 1.35 (28-Feb-2004) 
Filesystem label= 
OS type: Linux 
Block size=4096 (log=2) 
Fragment size=4096 (log=2) 
262144 inodes, 524279 blocks 
26213 blocks (5.00%) reserved for the super user 
First data block=0 
Maximum filesystem blocks=536870912 
16 block groups 
32768 blocks per group, 32768 fragments per group 
16384 inodes per group 
Superblock backups stored on blocks: 
        32768, 98304, 163840, 229376, 294912
Writing inode tables: done 
Creating journal (8192 blocks): done 
Writing superblocks and filesystem accounting information: done
This filesystem will be automatically checked every 28 mounts or 
180 days, whichever comes first.  Use tune2fs -c or -i to override. 
[root@as4 ~]# mount /dev/sdb1 /mnt 
[root@as4 ~]# df -h 
Filesystem            容量  已用 可用 已用% 挂载点 
/dev/sda3              32G  2.6G   28G   9% / 
/dev/sda1              99M   12M   82M  13% /boot 
none                  252M     0  252M   0% /dev/shm 
/dev/sdb1             2.0G   36M  1.9G   2% /mnt