一、raid

报错

mdadm: RUN_ARRAY failed: Invalid argument

原因

zcat /proc/config.gz 查看配置

驱动未加载全

解决办法

modprobe dm-raid

modprobe raid0

然后创建raid

mdadm --create /dev/md1  --level=0  -n 2   /dev/nvme1n1  /dev/nvme2n1

自动加载驱动

1、先去掉黑名单/etc/modprobe.d/blacklist.conf

2、配置/etc/modules，假如raid0 和dm_raid 

# /etc/modules: kernel modules to load at boot time.
#
# This file contains the names of kernel modules that should be loaded
# at boot time, one per line. Lines beginning with "#" are ignored.
raid0
dm_raid

停止当前raid

mdadm --stop /dev/md127