[root@xxxx ~]# fdisk -l
Disk /dev/xvda: 42.9 GB, 42949672960 bytes
255 heads, 63 sectors/track, 5221 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00078f9c
Device Boot Start End Blocks Id System
/dev/xvda1 * 1 5222 41940992 83 Linux
Disk /dev/xvdb: 5368 MB, 5368709120 bytes
255 heads, 63 sectors/track, 652 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
第三步:执行下列命令,对数据盘进行分区。 fdisk /dev/xvdb
第四步:根据提示,依次输入 n,p,1,两次回车,wq,分区就开始了。 [root@xxx ~]# fdisk /dev/xvdb
Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklab el
Building a new DOS disklabel with disk identifier 0x33eb5059.
Changes will remain in memory only, until you decide to write them.
After that, of course, the previous content won't be recoverable.
Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)
WARNING: DOS-compatible mode is deprecated. It's strongly recommended to
switch off the mode (command 'c') and change display units to
sectors (command 'u').
Command (m for help): n
Command action
e extended
p primary partition (1-4)
p
Partition number (1-4): 1
First cylinder (1-652, default 1):
Using default value 1
Last cylinder, +cylinders or +size{K,M,G} (1-652, default 652):
Using default value 652
Command (m for help): wq
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.
第五步:执行 fdisk -l 命令,查看新的分区。新分区 xvdb1 已经创建好。如下面示例中的/dev/xvdb1。 [root@xxx ~]# fdisk -l
Disk /dev/xvda: 42.9 GB, 42949672960 bytes
255 heads, 63 sectors/track, 5221 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00078f9c
Device Boot Start End Blocks Id System
/dev/xvda1 * 1 5222 41940992 83 Linux
Disk /dev/xvdb: 5368 MB, 5368709120 bytes
255 heads, 63 sectors/track, 652 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x33eb5059
Device Boot Start End Blocks Id System
/dev/xvdb1 1 652 5237158+ 83 Linux
第六步:执行下列命令,对新分区进行格式化。格式化所需时间取决于数据盘大小。您也可自主决定选用其他文件格式,如 ext14 等。mkfs.ext3 /dev/xvdb1
第七步:执行下列命令写入新分区信息。 echo '/dev/xvdb1 /mnt ext3 defaults 0 0'>> /etc/fstab
完成后,可以使用 cat /etc/fstab 命令查看。 echo '/dev/xvdb1 /mnt ext3 barrier=0 0 0'>>/etc/fstab
如果需要把数据盘单独挂载到某个文件夹,比如单独用来存放网页,可以修改以上命令中的 /mnt 部分。 [root@xxx ~]# mount /dev/xvdb1 /mnt
[root@xxx ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/xvda1 40G 1.5G 36G 4% /
tmpfs 498M 0 498M 0% /dev/shm
/dev/xvdb1 5.0G 139M 4.6G 3% /mnt
总结: 全部按照命令来的话,基本上是没有什么问题的。 可能比较疑惑的是挂载的路径问题。当前我以为挂载到某一个路径,然后就会把那个文件夹的容量增大。谁知道不是。而这只是一个链接指向而已。AD:真正免费,域名+虚机+企业邮箱=0元