TrueNAS Scale - Disk List Info

zfs_disk_info.sh

#!/bin/bash

# Get zpool status output
zpool_output=$(zpool status)

declare -A entry_to_pool
current_pool=""

# Match only proper GPTIDs (full UUIDs) or valid device names
while IFS= read -r line; do
    if [[ $line =~ ^\ *pool:\ (.+)$ ]]; then
        current_pool="${BASH_REMATCH[1]}"
    elif [[ $line =~ ([a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12}) ]]; then
        entry="${BASH_REMATCH[1]}"
        entry_to_pool["$entry"]="$current_pool"
    # Match likely device names only (sdX, nvme0n1pY, etc.)
    elif [[ $line =~ ([s]d[a-z][0-9]+|nvme[0-9]+n[0-9]+p[0-9]+) ]]; then
        entry="${BASH_REMATCH[1]}"
        entry_to_pool["$entry"]="$current_pool"
    fi
done <<< "$zpool_output"

# Print header
printf "%-40s %-10s %-35s %s\n" "GPTID/PART" "Device" "Serial" "Pool"

# Sort entries by pool
for entry in "${!entry_to_pool[@]}"; do
    printf "%s|%s\n" "${entry_to_pool[$entry]}" "$entry"
done | sort | while IFS='|' read -r pool entry; do
    by_partuuid="/dev/disk/by-partuuid/$entry"
    if [[ -e "$by_partuuid" ]]; then
        dev=$(readlink -f "$by_partuuid")
    elif [[ -e "/dev/$entry" ]]; then
        dev="/dev/$entry"
    else
        dev=""
    fi

    if [[ -n "$dev" ]]; then
        devname=$(basename "$dev")
        serial=$(udevadm info --query=all --name="$dev" | awk -F= '/ID_SERIAL=/ {print $2}' | head -n1)
        serial="${serial:-N/A}"
    else
        devname="N/A"
        serial="N/A"
    fi

    printf "%-40s %-10s %-35s %s\n" "$entry" "$devname" "$serial" "$pool"
done