RAID

Posted 2021-03-17 dinghailong128

RAID10：

[root@localhost ~]# mdadm -Cv /dev/md0 -a yes -n 4 -l 10 /dev/sd[b-e]

[root@localhost ~]# mdadm -Q /dev/md0  （简要查看）

[root@localhost ~]# mdadm -D /dev/md0  （详细查看）

[root@localhost ~]# mkfs.xfs /dev/md0

[root@localhost ~]# mkdir /haha

[root@localhost ~]# mount /dev/md0 /haha

[root@localhost ~]# df –h

[root@localhost ~]# vim /etc/fstab

/dev/md0 /haha xfs defaults 0 0

 

[root@localhost ~]# cd /haha

[root@localhost haha]# ls

[root@localhost haha]# cp -rf /etc/* ./

[root@localhost haha]# ls

 

[root@localhost ~]# mdadm /dev/md0 -f /dev/sdb

[root@localhost ~]# mdadm -D /dev/md0

[root@localhost ~]# umount /haha

[root@localhost ~]# mdadm /dev/md0 -a /dev/sdb

mdadm: added /dev/sdb

[root@localhost ~]# mdadm -D /dev/md0

[root@localhost ~]# mount -a

[root@localhost ~]# df -h

 

 

RAID5：

[root@localhost ~]# ls -l /dev/sd*

[root@localhost ~]# mdadm -Cv /dev/md0 -n 3 -l 5 -x 1 /dev/sd[b-e]

[root@localhost ~]# mdadm -D /dev/md0

[root@localhost ~]# mkfs.ext4 /dev/md0

[root@localhost ~]# mkdir /hoho

[root@localhost ~]# mount /dev/md0 /hoho

[root@localhost ~]# df -h

[root@localhost ~]# vim /etc/fstab