The best way to protect your data is to have one copy at home and (at least) one copy elsewhere.
When you only backup to a disk at home, or a DVD, and you leave it next to your computer, in case of fire or theft of your machine – then you have lost both the machine, and the backup.
If you backup over to the internet (into the cloud) then you can be sure that there’s always a copy of your data in case disaster strikes.
This post is also available in: French
Tags: Backup, cloud, long term data storage, remote backup

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