04-21-2023, 03:48 PM
I would recommend considering a new NAS as your main storage solution since Synology typically only provides OS updates for 10 years after the initial release. As for your current setup, using the old 4x4TB WD Red Plus drives at an off-site location for backup is a great idea. You can either upgrade your enclosure at home and use the DS918+ as your remote backup, or keep the DS918+ at home and purchase a cheaper Synology 4-bay enclosure for backup purposes. Just keep in mind that it's important to regularly check and ensure that your backup is up-to-date and functioning properly.