slogthedog.sh


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#!/bin/sh
# slogthedog.sh - Detect ZFS pools missing SLOGs and offer to add one.
# Because sometimes the sync log needs a good boy.

clear
cat << "EOF"
      __
  __ /o \_
<___/---'
🐶 SLOG THE DOG v1.0
-------------------------------
 Fetching sync logs since 2025
EOF

echo ""
echo "🔍 Scanning ZFS pools for missing SLOGs..."

for pool in $(zpool list -H -o name); do
  if ! zpool status "$pool" | grep -q 'logs'; then
    echo "🛑 Pool '$pool' has no SLOG."
    echo -n "Do you want to add a SLOG device to this pool? [y/N]: "
    read answer
    if [ "$answer" = "y" ] || [ "$answer" = "Y" ]; then
      echo ""
      echo "🐾 Available GPT-capable drives:"
      gpart show | grep "GPT" | awk '{print $1}' | sort -u
      echo -n "👉 Enter device name to use (e.g. nvd0 or nvme0n1): "
      read dev
      echo ""
      echo "🧼 Prepping /dev/$dev..."
      gpart destroy -F /dev/$dev >/dev/null 2>&1
      gpart create -s GPT /dev/$dev
      gpart add -t freebsd-zfs -l slog_${pool} -s 16G /dev/$dev
      echo "➕ Adding /dev/gpt/slog_${pool} as log device to $pool..."
      zpool add "$pool" log /dev/gpt/slog_${pool}
      echo "✅ SLOG added to pool '$pool' using /dev/gpt/slog_${pool}"
      echo ""
    else
      echo "❌ Skipping pool '$pool'"
    fi
  else
    echo "✅ Pool '$pool' already has a SLOG."
  fi
done

echo ""
echo "🏁 Done. Slog the Dog is waggin’ his tail. All pools checked."