Check total byte written

tbw.sh

#!/bin/bash

declare -A custom_names
custom_names["8427e3af:14f642d8:316fd036:e279d458"]="/root"
custom_names["f2e76944:da560738:512c4030:54026dcf"]="/opt"

for drive in /dev/sd[a-e]; do
    if smartctl -A "$drive" | grep -q 'Host_Writes_GiB'; then
        md_name=$(mdadm --examine "$drive" | grep "Array UUID" | awk '{print $4}')
        if [ -n "$md_name" ]; then
            custom_name=${custom_names["$md_name"]}
            spaces_to_add=$((8 - ${#custom_name}))
            # Create a string with the required spaces
            padding=""
            for ((i = 0; i < spaces_to_add; i++)); do
                padding+=" "
            done

            # Combine the padding and the variable
            padded_name="$padding$custom_name"

            if [ -n "$custom_name" ]; then
                echo -ne "$drive\tRAID Array: $padded_name\tTBW (GB): "
            else
                echo -ne "$drive\tRAID Array: $md_name\tTBW (GB): "
            fi
        else
            echo -ne "$drive\tDISK\tTBW (GB):\t"
        fi

        smartctl -A "$drive" | awk '/Host_Writes_GiB/ {print $10}'
    fi

done