list_disks.sh

#!/bin/bash

if [ $(whoami) != "root" ]; then
        echo "Please run this script as root"
        exit
fi

asm_disks=""
for asm_disk in $(oracleasm listdisks); do
        asm_disks=$(echo -e "${asm_disks}\n${asm_disk} $(oracleasm querydisk -p ${asm_disk} | egrep '^/dev/' | cut -d ':' -f 1)")
done

disks=$(fdisk -l | egrep 'Disk /dev' | awk '{print $2}' | sed -e 's/://g')

for d in ${disks}; do
        parts=$(fdisk -l ${d} | egrep '^/dev/' | cut -f 1 -d ' ')
        if [ -z "${parts}" ]; then
                # no partitions
                fs=$(df -P | grep ${d} | awk '{print $6}')
                if [ -n "${fs}" ]; then
                        # file system
                        echo "Device ${d} - filesystem: ${fs}"
                else
                        # asm
                        asm=$(echo "${asm_disks}" | grep ${d} | awk '{print $1}')
                        if [ -n "${asm}" ]; then
                                echo "Device ${d} - ASM (${asm})"
                        else
                                echo "Device ${d} - unallocated"
                        fi
                fi
        else
                echo "Device ${d}:"
                for p in ${parts}; do
                        # check filesystem
                        fs=$(df -P | grep ${p} | awk '{print $6}')
                        if [ -n "${fs}" ]; then
                                # file system
                                echo "  - Partition ${p} is filesystem: ${fs}"
                        else
                                # asm
                                asm=$(echo "${asm_disks}" | grep ${p} | awk '{print $1}')
                                if [ -n "${asm}" ]; then
                                        echo "  - Partition ${p} is ASM (${asm})"
                                else
                                        echo "  - Partition ${p} is unallocated"
                                fi
                        fi
                done
        fi
done