IBM服务器，Linux系统，三块硬盘做Raid5，今天终于成功加上了块硬盘！
1、用Raid驱动盘（是不是这么叫？呵呵）引导，将新加的盘做Raid0(因为只加了一块盘)
2、通过fdisk分区
3、通过mkfs.ext3格式化新的分区，完成
第一步很简单
第二步，分区
1、通过fdisk -l查看未分区硬盘
Disk /dev/sda: 72.8 GB, 72802631680 bytes
254 heads, 63 sectors/track, 8885 cylinders
Units = cylinders of 16002 * 512 = 8193024 bytes
Device Boot Start End Blocks Id System
/dev/sda1 * 1 13 103981+ 83 Linux
/dev/sda2 14 8656 69152643 83 Linux
/dev/sda3 8657 8885 1832229 82 Linux swap
Disk /dev/sdb: 36.4 GB, 36401315840 bytes
254 heads, 63 sectors/track, 4442 cylinders
Units = cylinders of 16002 * 512 = 8193024 bytes
Device Boot Start End Blocks Id System
这儿可以看到，/dev/sdb尚未分区
2、通过fdisk /dev/sdb对/dev/sdb进行分区
[root@ckkhserver root]# fdisk /dev/sdb
The number of cylinders for this disk is set to 4442.
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)
Command (m for help):
键入m查看帮助
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)
选n add a new partition，创建一分区
Command action
e extended
p primary partition (1-4)
我不知道这是什么意思，但尝试后知道，应该选p primary partition (1-4)
然后根据情况键入数字，比如1
再根据提示选择分区的类型，L查看知道有这么一个类型，83 Linux
那就选这个类型，输入83，然后保存退出，分区就完成了
第三步，格式化
这儿，格式化成ext3格式，命令为mkfs.ext3 /dev/hdb1
为了让硬盘在系统启动时自动挂载，用vi编辑/etc/fstab文件，加入如下内容（比如挂载到/mnt/hd目录）
/dev/dhb1 /mnt/hd reiserfs defaults 1 1