RAID磁盘阵列的原理与搭建

打开一个新的虚拟机（提前配好 ip yum） 添加两块硬盘

查看一下两块磁盘

# ls /dev/sd

sda   sda1  sda2  sdb    sdc 

 

/dev/sdc给sdb、sdc磁盘做一个分区

# fdisk /dev/sdc

 

再来查看一下

# ls /dev/sd{a,b,c}1

/dev/sda1  /dev/sdb1  /dev/sdc1

 

 

安装一下mdadm

# yum list | grep mdad

mdadm.x86_64                           3.2.6-31.el7                @dvd         

# yum install mdadm

Loaded plugins: product-id, subscription-manager

This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.

Package mdadm-3.2.6-31.el7.x86_64 already installed and latest version

Nothing to do

 

 

输入

# mdadm -C -v /dev/md0 -l 0 -n 2 /dev/sdb1 /dev/sdc1 

mdadm: chunk size defaults to 512K
mdadm: Defaulting to version 1.2 metadata
mdadm: array /dev/md0 started.

 

 然后输入mdadm -Ds查看一下

# mdadm -Ds
ARRAY /dev/md0 metadata=1.2 name=localhost.localdomain:0 UUID=90854c91:bed91a6e:215163ef:13ccfd3e

成功