Around 2013, every year I'd burn all my important data into a single DVD, that is 4.7GB. Nowadays I have ~5TB data, and I don't even bother optimizing 5GB data. Background I realized that it is the time to consider backup. I guess I have seen enough signs. The NAS shows that the disks are quite full. I just happened to see article and videos about data backup. I found corrupted data in my old DVDs. I realized that most of my important data are not properly backed up. I have a few scripts that manage different files, which might contains bugs. The goal is to have good coverage under acceptable cost. The Plan All my data are categorized into 4 classes. Class 1: Most Important + Frequently Accessed Rougly ~50GB in total. Average file size is ~5MB. Examples include official documents, my artworks and source code. The plan: sync into multpile locations to maximize robustness. Sometimes I chooes a smaller subset when I don't have enough free space. In case some copies are down/
久病成医 | Prolonged Illness Makes the Patient a Good Doctor