How I almost lost my backups

My backup strategy follows the 3-2-1 backup rule : Three copies of your data On two different media One copy off-site Some people argue that your production data (the copy stored on your laptop, for example) counts as one of those copies. I disagree. While it may be a copy of your current data, it's not a copy of your historical data. If I need to recover a file that I modified or deleted 2 years…