undefined | Better HN

0 pointsfnord1238y ago0 comments

If you have a file version, it's frozen in time. So if you have syncing with file versions you can rollback files individually.

0 comments

2 comments · 1 top-level

nolok8y ago· 1 in thread

I don't think I was clear enough: with a two way sync, if a disgruntled employee / script failure / any other thing destroys the file version 1.0, it gets uploaded and replace the old file version 1.0

Backup is not just about having a copy, it's having a copy that stops being kept in sync with the original after it is made.

fnord123OP8y ago

The version (in S3) is a hash of the data so if you remove your local version and replace it then you won't be tricked into thinking version 1.0 is the wrong thing (unless someone brute forces a new file with the same hash).

There is also a concept of Write Once Read Many in storage which is used for compliance. So you can use sync with WORM and it's basically append only.

j / k navigate · click thread line to collapse