Software Raid 5

• To create the RAID

mdadm --create --verbose /dev/md0 --level=5 --raid-devices=3 /dev/hdb /dev/hdc /dev/hdd

• To rebuild the RAID

mdadm --assemble /dev/md0 /dev/hdb /dev/hdc /dev/hdd

• Status of the RAID

cat /proc/mdstat

• Status of the Drives

mdadm --query --examine /dev/hdb /dev/hdc /dev/hdd