mdadm 在OS下创建raid步骤

1.BIOS下开启vmd配置：
①socket configuration-iio configuration-socket_x configuration-PCI Express_x-Intel VMD technology
②socket configuration-iio configuration-socket_x configuration-PCI Express_x-Port_x-Intel VMD technology
2.OS下命令：
[root@localhost ~]# sudo mdadm --create /dev/md0 --level=1 --raid-devices=2 /dev/nvme3n1 /dev/nvme2n1 --metadata=1.2
mdadm: array /dev/md0 started.
[root@localhost ~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
nvme2n1 259:0 0 7T 0 disk
└─md0 9:0 0 7T 0 raid1
nvme3n1 259:1 0 7T 0 disk
└─md0 9:0 0 7T 0 raid1
nvme1n1 259:2 0 7T 0 disk
nvme0n1 259:3 0 7T 0 disk
├─nvme0n1p1 259:4 0 600M 0 part /boot/efi
├─nvme0n1p2 259:5 0 1G 0 part /boot
└─nvme0n1p3 259:6 0 7T 0 part
├─rhel-root 253:0 0 70G 0 lvm /
├─rhel-swap 253:1 0 4G 0 lvm [SWAP]
└─rhel-home 253:2 0 6.9T 0 lvm /home