#!/bin/bash

if [ "$EUID" -ne 0 ]; then
    # This should work without sudo because we have read
    # access to the dev, but for some reason mdadm must be
    # run as root in order to succeed.
    echo "Please run as root"
    exit 1
fi

raid_set_name=$1
raid_sets=`cat /proc/partitions | grep md | awk '{ print $4 }'`
valid_set=`echo $raid_sets | grep $raid_set_name`
if [ -z $valid_set ]; then
    echo "$raid_set_name is not a RAID set"
else
    if [ -r /dev/${raid_set_name} ]; then
        # This should work without sudo because we have read
        # access to the dev, but for some reason mdadm must be
        # run as root in order to succeed.
        mdadm --detail /dev/${raid_set_name}
    else
        echo "Must be administrator or root to display RAID status"
    fi
fi