关于mdadm的一些常见操作
更详细的请参考：参考: https://www.cnblogs.com/lpfuture/p/6385657.html?utm_source=itdadao&utm_medium=referral
##查看raid信息
mdadm -D /dev/md0
cat /proc/mdstat
##创建软raid
mdadm --create /dev/md0 --level=raid0 --raid-devices=12 /dev/sd[b-m]
##停止raid
mdadm -S /dev/md0
##停止后启动raid
mdadm -A /dev/md0 /dev/sd[b-m]
##添加一块磁盘
mdadm --add /dev/md0 /dev/sdb
##移除一块盘
mdadm -r /dev/md0 /dev/sdb
################ 一个制作软raid的脚本 ################ #!/bin/bash function mdadm_init () { umount /dev/md0 mdadm -S /dev/md0 mdadm --zero-superblock /dev/sd[b-m] } function block_init () { for i in {b..m}; do echo " d n t ee w " |fdisk /dev/sd$i && mkfs.xfs -f /dev/sd${i} done } function raid () { mdadm --create /dev/md0 --level=raid0 --raid-devices=12 /dev/sd[b-m] mkfs.xfs -f /dev/md0 echo ‘‘ > /etc/mdadm.conf echo Device /dev/sd[b-m] >> /etc/mdadm.conf mdadm -Ds >> /etc/mdadm.conf echo MAILADD root@locahost >> /etc/mdadm.conf sed -i ‘/Data2/d‘ /etc/fstab echo ‘/dev/md0 /Data2 xfs defaults 0 0‘ >> /etc/fstab mount -a } mdadm_init block_init raid
原文：https://www.cnblogs.com/ad-note/p/12706827.html