Best Practices for Managing Hot-Swappable Server Hard Drives?

I'm looking for advice on managing hot-swappable server hard drives. We're upgrading our server setup and I want to ensure minimal downtime while maintaining data safety. What are the best practices when it comes to swapping drives? Is there a checklist or any specific precautions I should follow to avoid mistakes? Also, how do you handle backups during this process? Any tips or experiences would be super helpful. Thanks!