Enable RAID 0 on Bedrock in Linux

Bedrock V3000 provides up to 3 NVME x4 slots which support RAID 0 configuration

This guide provides step-by-step instructions for setting up a RAID array with two ADATA 256 NVME gen 3.0 drives on Ubuntu Server 23.04.

Table of Contents

• Test setup

• RAID configuration steps

  • Create RAID partitions

  • Create RAID device

  • Format RAID device

  • Retrieve UUID of RAID partition

  • Edit fstab

  • Testing the configuration

Test setup

• 2x A-data legend 710 NVMEs

• Ubuntu Server 23.04 (Customer image)

Performance Test Results

With RAID :

• Command: dd if=/dev/md0 of=/dev/null bs=4M status=progress; sync

• Result: 510 GB copied in 149 seconds at a rate of 3.4 GB/s.

Without RAID (Single Disk)

• Command: sudo dd if=/dev/nvme0n1 of=/dev/null bs=4M status=progress; sync

• Result: 255 GB copied in 111 seconds at a rate of 2.3 GB/s.

RAID Configuration Steps

Create RAID Partitions

For each disk you want to include in the RAID configuration:

• Run: parted /dev/sdX mklabel gpt to create a new GPT label

• Create a primary partition with: parted /dev/sdX mkpart primary ext4 0% 100%

• Set the RAID flag with: parted /dev/sdX set 1 raid on

Create RAID Device

• Use mdadm to create the RAID array:

  • mdadm --create --verbose /dev/md0 --raid-devices=<number of disks> --level=0 /dev/<partition of first disk> /dev/<partition of second disk> <more disks>

• Replace , , , with the appropriate values.

• The RAID device will be named /dev/md0

Format RAID Device

• Format RAID device with: mkfs.ext4 /dev/md0

/dev/md0 is used because in the previous command we created it with the name /dev/md0

Retrieve UUID of the RAID Partition

• Run blkid to ge the UUID of the /dev/md0 partition

  • Example: UUID="2ff3d24d-c123c-43d5-41ed-627bcdf54154"

Edit fstab File

• Open /etc/fstab using vi /etc/fstab

• Add the Line <Your UUID> /home ext4 defaults 0 1

  • Replace <>Your UUID> with the actual UUID from the previous step

  • You can also change /home which is the destination point to mount the RAID disk

Test the Configuration

• Run mount -a to mount all filesystems

• Verify with df -h to see if the filesystem got mounted

Always ensure you have a backup of your data before making changes to disk or configurations. RAID 0 offers improved performance but no redundancy, meaning if one disk fails, all data is lost.