hdd-spindown.sh

hdd-spindown.sh

#!/bin/bash

# 1. Check and install hdparm if not installed
if ! which hdparm > /dev/null; then
    echo "hdparm not found! Installing..."
    apt-get update
    apt-get install -y hdparm
fi

# 2. List HDDs
echo "Listing available HDDs:"
mapfile -t drives < <(lsblk -d -o name,rota | grep ' 1$' | awk '{print $1}')
for drive in "${drives[@]}"; do
    type=$(udevadm info --query=all --name="/dev/$drive" | grep "ID_BUS" | cut -d"=" -f2)
    echo "- /dev/$drive ($type)"
done

# 3. Ask user for the drive
echo "Enter the drive path (e.g., /dev/sda) for spindown operation:"
read selected_drive

# Check if selected drive is valid
if ! [[ " ${drives[@]} " =~ " ${selected_drive#/dev/} " ]]; then
    echo "Invalid selection!"
    exit 1
fi

# 4. Run hdparm
hdparm -S 242 $selected_drive

# 5. Create a boot-time shell script
script_path="/usr/local/bin/spindown_${selected_drive#/dev/}.sh"
cat > $script_path <<EOL
#!/bin/bash
hdparm -S 242 $selected_drive
EOL
chmod +x $script_path

# 6. Create a systemd service
service_path="/etc/systemd/system/spindown_${selected_drive#/dev/}.service"
cat > $service_path <<EOL
[Unit]
Description=Spindown for $selected_drive

[Service]
Type=oneshot
ExecStart=$script_path

[Install]
WantedBy=multi-user.target
EOL

# 7. Enable and start the systemd service
systemctl daemon-reload
systemctl enable spindown_${selected_drive#/dev/}.service
systemctl start spindown_${selected_drive#/dev/}.service

# 8. List the systemd service
systemctl status spindown_${selected_drive#/dev/}.service

echo "Setup complete for $selected_drive!"