在Linux下添加新磁盘

一、添加物理硬件

关机后添加新的磁盘上去

 

二、检查磁盘是否检查成功

fdisk -l
#查看是否加载了新的磁盘sbx(x为磁盘序号a-z，如果新加的是二块磁盘，则看是否有sdb)
#Disk /dev/sdb: 214.7 GB, 214748364800 bytes
#255 heads, 63 sectors/track, 26108 cylinders
#Units = cylinders of 16065 * 512 = 8225280 bytes
#
#Disk /dev/sdb doesn't contain a valid partition table

 

三、添加硬盘

fdisk /dev/sdb

Command (m for help): m

Command (m for help): n

Command action
   e   extended
   p   primary partition (1-4)
e
#输入e创建扩展分区，输入p创建主分区

Partition number (1-4): 1
First cylinder (1-26108, default 1):
Using default value 1
Last cylinder or +size or +sizeM or +sizeK (1-26108, default 26108):
Using default value 26108

Command (m for help): n
Command action
   l   logical (5 or over)
   p   primary partition (1-4)
l
#输入l创建逻辑分区
First cylinder (1-26108, default 1):
Using default value 1
#分区的起始柱头，一般默认即可
Last cylinder or +size or +sizeM or +sizeK (1-26108, default 26108):
Using default value 26108
#分区的结束柱头，或输入大小，如+1024M

Command (m for help): p
查看划分好的分区的磁盘标识
Disk /dev/sdb: 214.7 GB, 214748364800 bytes
255 heads, 63 sectors/track, 26108 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1               1       26108   209712478+   5  Extended
/dev/sdb5               1       26108   209712447   83  Linux

Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.
#输入w保存退出
mkfs -t ext3 -c /dev/sdb5
#输入mkfs格式化分区

mkdir /data

mount /dev/sdb5 /data/

df -h

vi /etc/fstab
添加:
/dev/sdb5               /data                   ext3    defaults        1 2
:wq

 

四、重启并检查磁盘挂载情况

reboot
df -h