3）验证共享盘，启动两节点，node1先启动，node2随后再启动。
检查两节点都能看到同一块共享盘
[root@tim1 ~]# ls -al /dev/sd*
[root@tim2 ~]# ls -al /dev/sd*
sda表示第一块磁盘
sda1表示第一块磁盘的第一个分区
sda2表示第一块磁盘的第二个分区
sdb表示第二块磁盘
sdc 表示第三块磁盘
3.3分区并格式化本地盘（这就是/u01）
Node1:
整个一个区都给它：
[root@tim1 ~]# fdisk /dev/sdb
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 2610.
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): n
Command action
e extended
p primary partition (1-4)
p
Partition number (1-4): 1
First cylinder (1-2610, default 1): enter
Using default value 1
Last cylinder or size or sizeM or sizeK (1-2610, default 2610):
Using default value 2610
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.
Node2:同上
3.4分配共享盘共10个分区（1 1 1) (5 5) (4 4) (3 3 3)=30G
Node1:
[root@tim1 ~]# fdisk /dev/sdc
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 3916.
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): n
Command action
e extended
p primary partition (1-4)
p
Partition number (1-4): 1
First cylinder (1-3916, default 1): enter
Using default value 1
Last cylinder or size or sizeM or sizeK (1-3916, default 3916): 1G
Command (m for help): n
Command action
e extended
p primary partition (1-4)
p
Partition number (1-4): 2
First cylinder (124-3916, default 124):enter
Using default value 124
Last cylinder or size or sizeM or sizeK (124-3916, default 3916): 1G
Command (m for help): n
Command action
e extended
p primary partition (1-4)
p
Partition number (1-4): 3
First cylinder (247-3916, default 247):enter
Using default value 247
Last cylinder or size or sizeM or sizeK (247-3916, default 3916): 1G
Command (m for help): n
Command action
e extended
p primary partition (1-4)
e 开始扩展分区
Selected partition 4
First cylinder (370-3916, default 370):enter
Using default value 370
Last cylinder or size or sizeM or sizeK (370-3916, default 3916): enter
Using default value 3916
Command (m for help): n
First cylinder (370-3916, default 370):enter
Using default value 370
Last cylinder or size or sizeM or sizeK (370-3916, default 3916): 5G
Command (m for help): n
First cylinder (979-3916, default 979):enter
Using default value 979
Last cylinder or size or sizeM or sizeK (979-3916, default 3916): 5G
Command (m for help): n
First cylinder (1588-3916, default 1588):enter
Using default value 1588
Last cylinder or size or sizeM or sizeK (1588-3916, default 3916): 4G
Command (m for help): n
First cylinder (2075-3916, default 2075):enter
Using default value 2075 enter
Last cylinder or size or sizeM or sizeK (2075-3916, default 3916): 4G
Command (m for help): n
First cylinder (2562-3916, default 2562):enter
Using default value 2562
Last cylinder or size or sizeM or sizeK (2562-3916, default 3916): 3G
Command (m for help): n
First cylinder (2928-3916, default 2928):enter
Using default value 2928
Last cylinder or size or sizeM or sizeK (2928-3916, default 3916): 3G
Command (m for help): n
First cylinder (3294-3916, default 3294): enter
Using default value 3294
Last cylinder or size or sizeM or sizeK (3294-3916, default 3916): 3G
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.
Node2: 不需做共享分区，能看到共享盘就行了。
两个节点看到磁盘分区是一模一样的，如果Node2看不到盘，可能需要查探一下。
[root@tim2 dev]# partprobe /dev/sdc
3.5将本地盘/dev/sdb1分别格式化，然后自动挂载：
Node1:
[root@tim1 ~]# mkfs.ext3 /dev/sdb1
[root@tim1 ~]# mount /dev/sdb1 /u01
[root@tim3 ~]# df
[root@tim1 ~]# vi /etc/fstab
最后一行添加，下次启动有效：
/dev/sdb1 /u01 ext3 defaults 0 0
Node2:同上
