4 ms·

A good approach is to use the 3-2-1 backup strategy. You should have 3 copies of your data (1 working set and 2 backup copies) on 2 different media (disk, dvd,

A good approach is to use the 3-2-1 backup strategy. You should have 3 copies of your data (1 working set and 2 backup copies) on 2 different media (disk, dvd, NAS, cloud…) with 1 copy off-site for disaster recovery (cloud, external disk at another location…). Depending on the type of data, on how paranoid you are and the budget available you could do extra variations. i.e. 4 set of data, different filesystem (NTFS, exFAT, btrfs, ZFS, ext4…), different disk manufacturers, different batches of hard disks, different NAS enclosures, different methods (soft RAID, H/W RAID, error correction…), encryption and storage in friends house and so on :-) If you can afford it buy a dual disk NAS and also use your spare 2.5 disks in external usb cases and synchronize your data every once in a while.

m463 5y ago
I have given out this link countless times: https://www.jwz.org/doc/backups.html https://www.jwz.org/doc/backups.html I love this line: > "OMG, three drives is so expensive! That sounds like a hassle!" > Shut up. I know things. You will listen to me. Do it anyway.
- vulcan01 5y ago
  Warning to those who might be new to jwz's site - copy and paste that link into your browser, because if the Referer header is HN he serves an NSFW picture instead.
  - ksec 5y ago
    You actually make me curious to see that pic but I clicked it and dont have that problem.
    - NKosmatos 5y ago
      Here is the image in case anyone is interested: https://cdn.jwz.org/images/2016/hn.png https://cdn.jwz.org/images/2016/hn.png I have to admit that Jamie (jwz) has done important things and has contributed a lot to many others but I have to disagree with most of what is mentioned in the page related to the backup procedures, but hey this is the web and anyone has its own views and ideas on what is best and on what to display to a redirected user from HN :-)
- kova12 5y ago
  The advice this guy gives is far from ideal: First, when drive fails, it often doesn't tell you right away. If you rsync --delete , there is high chance your deletions would copy. Same goes for corruption. Second, keeping drive with potentially private data unencrypted is a liability. Especially offsite. Someone will steal it and all your private stuff is out. I am not even considering case when you store crypto on said PC
  - toast0 5y ago
    > Second, keeping drive with potentially private data unencrypted is a liability. Especially offsite. Someone will steal it and all your private stuff is out. I am not even considering case when you store crypto on said PC Otoh, keeping your storage encrypted means losing your keys is losing your data. And your heirs are likely unable to access it. You have to weigh your threats.
  - m463 5y ago
    I think people need to get a strategy - any strategy - before they can think about these sort of second-order details.

m463 5y ago

I have given out this link countless times: https://www.jwz.org/doc/backups.html https://www.jwz.org/doc/backups.html I love this line: > "OMG, three drives is so expensive! That sounds like a hassle!" > Shut up. I know things. You will listen to me. Do it anyway.

vulcan01 5y ago
Warning to those who might be new to jwz's site - copy and paste that link into your browser, because if the Referer header is HN he serves an NSFW picture instead.
- ksec 5y ago
  You actually make me curious to see that pic but I clicked it and dont have that problem.
  - NKosmatos 5y ago
    Here is the image in case anyone is interested: https://cdn.jwz.org/images/2016/hn.png https://cdn.jwz.org/images/2016/hn.png I have to admit that Jamie (jwz) has done important things and has contributed a lot to many others but I have to disagree with most of what is mentioned in the page related to the backup procedures, but hey this is the web and anyone has its own views and ideas on what is best and on what to display to a redirected user from HN :-)
kova12 5y ago
The advice this guy gives is far from ideal: First, when drive fails, it often doesn't tell you right away. If you rsync --delete , there is high chance your deletions would copy. Same goes for corruption. Second, keeping drive with potentially private data unencrypted is a liability. Especially offsite. Someone will steal it and all your private stuff is out. I am not even considering case when you store crypto on said PC
- toast0 5y ago
  > Second, keeping drive with potentially private data unencrypted is a liability. Especially offsite. Someone will steal it and all your private stuff is out. I am not even considering case when you store crypto on said PC Otoh, keeping your storage encrypted means losing your keys is losing your data. And your heirs are likely unable to access it. You have to weigh your threats.
- m463 5y ago
  I think people need to get a strategy - any strategy - before they can think about these sort of second-order details.