Set up RAID 0 using mdadm

Set up RAID 0 using mdadm

Steps to configure RAID 0 in Centos7.


Code

  1. lsblk
  2. yum install -y mdadm
  3. mdadm --create --verbose /dev/md0 --level=0 --raid-devices=2 /dev/sdb /dev/sdc
  4. mkfs.ext4 /dev/md0
  5. mkdir /mnt/raid0-drive
  6. mount /dev/md0 /mnt/raid0-drive
  7. df -h



Code Summary 

LSBLK: - LSBLK is used to display details about block devices and these block devices(Except ram disk) are basically those files that represent devices connected to the pc.
MDADM: - MDADM command is used to monitor and manage software RAID devices.

Use Case

lsblk: - Get Block Devices Name
yum install -y mdadm:- Install MDADM
mdadm --create --verbose /dev/md0 --level=0 --raid-devices=2 /dev/sdb /dev/sdc: - Here 
      /dev/md0: - Creating RAID
      --level=0:- Define RAID Level
      --raid-devices=2:- No of Storage Devices
      /dev/sdb:- Name of Storage Device1 (get this using lsblk command) which you want to create RAID.
      /dev/sdc:- Name of Storage Device2 (get this using lsblk command) which you want to create RAID.
mkdir /mnt/raid0-drive: - Creates Directory.
mkfs.ext4 /dev/md0: - Creating File System
mount /dev/md0 /mnt/raid0-drive: - Mount RAID to system
df -h: - Report File System Disk Space Usage.

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