This article will show you how to create RAID 0 (for best performance), or RAID 1 (for fault tolerance) Array on an Azure Linux VM. And will take HB120v3 as example to stripe its 2 local 960GiB NVMe disks.
1. Use lsblk command to find the device names.
In HB120v3, you would see 2 NVMe devices: “nvme0n1″ & “nvme1n1″.
2. Create RAID 0 Array.
# Create a logical RAID 0 device named "NVME_RAID".
# Please change from --level=0 to --level=1" if you would like to create RAID 1 Array
sudo mdadm --create --verbose /dev/md0 --level=0 --name=NVME_RAID --raid-devices=2 /dev/nvme0n1 /dev/nvme1n1
# Create an ext4 file system with label "NVME_RAID"
sudo mkfs.ext4 -L NVME_RAID /dev/md0
# To ensure RAID array is reassembled automatically on boot
sudo mdadm --detail --scan | sudo tee -a /etc/mdadm.conf
# Create a new ramdisk image
sudo dracut -H -f /boot/initramfs-$(uname -r).img $(uname -r)
# Create a mount point
sudo mkdir -p /mnt/raid
# Mount the RAID device
sudo mount LABEL=NVME_RAID /mnt/raid
3. Verify that the 2 NVMe devices have been striped together as an 1.8TiB RAID 0 Array.
[hpcadmin@hb120v3 ~]$ df -h
Filesystem Size Used Avail Use% Mounted on
devtmpfs 221G 0 221G 0% /dev
tmpfs 221G 0 221G 0% /dev/shm
tmpfs 221G 9.0M 221G 1% /run
tmpfs 221G 0 221G 0% /sys/fs/cgroup
/dev/sda2 30G 14G 16G 45% /
/dev/sda1 494M 113M 382M 23% /boot
/dev/sda15 495M 12M 484M 3% /boot/efi
/dev/sdb1 473G 73M 449G 1% /mnt/resource
/dev/md0 1.8T 77M 1.7T 1% /mnt/raid
tmpfs 45G 0 45G 0% /run/user/1000
For Windows VM: Create RAID Array on Azure Windows VM – Raymond’s Tech Thoughts
Raymond's Tech Notes 
Create RAID Array on Azure Linux VM 有 “ 1 則迴響 ”