Frank Heijkamp@MichaelRoss Adding to that, yes a proper backup is needed, this applies to a NAS and also to cloud services. If you read the fine print of all the cloud providers you will see that they tell you you have to provide your own backup. They won't guarantee the availability of your data. If they have a serious technical outage they can just say, sorry we lost your pictures and documents and that is the end of it.
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