1、# fdisk -l 查看當前磁盤信息，就會發現最下面顯示新加入的硬盤不是有效分區，如下：
Disk /dev/sdc: 1500.3 GB, 1500301910016 bytes
255 heads, 63 sectors/track, 182401 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytesf
Disk /dev/sdc doesn't contain a valid partition tablev
2、# fdisk /dev/sdc 對新硬盤分區，並根據提示進一步操作
Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel
Building a new DOS disklabel. Changes will remain in memory only,
until you decide to write them. After that, of course, the previous
content won't be recoverable.
The number of cylinders for this disk is set to 182401.
There is nothing wrong with that, but this is larger than 1024,
and could in certain setups cause problems with:
1) software that runs at boot time (e.g., old versions of LILO)
2) booting and partitioning software from other OSs
(e.g., DOS FDISK, OS/2 FDISK)
Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)
Command (m for help): h 輸入h可查看幫助命令
h: unknown command
Command action
a toggle a bootable flag
b edit bsd disklabel
c toggle the dos compatibility flag
d delete a partition
l list known partition types
m print this menu
n add a new partition
o create a new empty DOS partition table
p print the partition table
q quit without saving changes
s create a new empty Sun disklabel
t change a partition's system id
u change display/entry units
v verify the partition table
w write table to disk and exit
x extra functionality (experts only)
Command (m for help): n 輸入n進行分區
Command action
e extended(用的這個)
p primary partition (1-4)
p 輸入p爲主分區，e爲邏輯分區
Partition number (1-4): 1 由於是新盤我們輸入1來分第一個主分區，共可以分4個主分區
First cylinder (1-182401, default 1): 選擇該分區的起始磁盤數，如無特殊需求強烈建議選擇默認，也就是1來分區（直接按回車）
Using default value 1
Last cylinder or +size or +sizeM or +sizeK (1-182401, default 182401): 定義該分區的大小，如果按默認（按回車）即是使用全部可用存儲額，如分一個1G的空間，輸入+1024m
Using default value 182401
Command (m for help): w 寫入分區
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.
3、# fdisk -l 可以找到我們剛纔分的一個分區，內容如下：
Disk /dev/sdc: 1500.3 GB, 1500301910016 bytes
255 heads, 63 sectors/track, 182401 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sdc1 1 182401 1465136001 83 Linux
4、# mkfs -t ext3 -c /dev/sdc1 對分區使用ext3格式化，如多個分區sdc2等以此類推，因爲新硬盤加了-c參數要先檢測磁盤壞道，此過程萬分漫長（150G），等待。。。
mke2fs 1.39 (29-May-2006)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
183156736 inodes, 366284000 blocks
18314200 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=0
11179 block groups
32768 blocks per group, 32768 fragments per group
16384 inodes per group
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
4096000, 7962624, 11239424, 20480000, 23887872, 71663616, 78675968,
102400000, 214990848
Checking for bad blocks (read-only test): done
Writing inode tables: done
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done
This filesystem will be automatically checked every 22 mounts or
180 days, whichever comes first. Use tune2fs -c or -i to override.
mke2fs 1.41.12 (17-May-2010)
mkfs.ext3: inode_size (128) * inodes_count (0) too big for a
filesystem with 0 blocks, specify higher inode_ratio (-i)
or lower inode count (-N).
//格式化擴展分區報錯，擴展分區不能格式化，要擴展分區下的邏輯分區才能格式化。
//新建邏輯分區
#fdisk /dev/sdb
Command (m for help): n
Command action
l logical (5 or over)
p primary partition (1-4)
l
First cylinder (1-13054, default 1): 1
Last cylinder, +cylinders or +size{K,M,G} (1-13054, default 13054):
Using default value 13054
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.
//格式化ext3系統，掛載可以正常使用了
# mkfs.ext3 /dev/sdb5
5、# mkdir /var/samba 新建掛載目錄
6、# mount /dev/sdc1 /var/samba 掛載新硬盤
7、# df -hl 查看分區大小是否和我們預定的一樣：
文件系統 容量 已用 可用 已用% 掛載點
/dev/sda7 9.5G 3.2G 5.9G 35% /
/dev/sda6 9.5G 151M 8.9G 2% /tmp
/dev/sda5 19G 3.6G 15G 20% /usr
/dev/sda3 19G 719M 18G 4% /home
/dev/sda2 230G 23G 196G 11% /var
/dev/sda1 99M 25M 69M 27% /boot
/dev/sdb1 233G 156G 78G 67% /var/samba2
tmpfs 1008M 0 1008M 0% /dev/shm
/dev/sdc1 1.4T 198M 1.3T 1% /var/samba 此行爲新硬盤
8、# vi /etc/fstab 設置系統自動掛載硬盤，加入一行：
/dev/sdc1 /var/samba2 ext3 defaults 0 0
9、重啓服務器，用步驟7檢查一下，一切正常掛載完成，祝好運~