Newbie: What is the most cost effective way to backup 12+ terabytes windows folder of data daily to AWS Deep Archive?

[drwtsn32]

Duplicati can work with archive-tier storage, but you must change some default options. See this post for more information:

Amazon Glacier Best Practices?

Glacier doesn’t allow immediate read access to the objects. As such, Duplicati fails when it tries testing the files. I personally advise against using archive tier storage. (You can get hot storage at about the same cost as Glacier from other cloud providers such as Backblaze B2 or Wasabi.) Google does have an archive tier that allows for near immediate access, so that’s another option. If you really, really want to use Glacier, then you should set these options: --no-auto-compact = true --n…

And this thread:

Up-to-date on glacier usage

I went through nearly all threads I could find and most are outdated, what’s the current method if one wants to use (scaleway-) glacier for backups? I assume --no-backend-verification is necessary, but what about the rest, any other configs needed for duplicati to blindly trust the remote? any of the custom URLs necessary still? how would one attempt a restore; say I restore it to hot-storage first, would I have to set that up as a separate remote first and then point duplicati at it? or i…

Also for a 12TiB backup you’ll want to either change the default deduplication “block size”, or break up the backups into smaller sets, or both.

Choosing sizes in Duplicati

Choosing Sizes in Duplicati All options in Duplicati are chosen to fit a wide range of users, such that as few as possible of the users need to change settings. Some of these options are related to sizes of various elements. Choosing these options optimally is a balance between different usage scenarios and has different tradeoffs. This documents explains what these tradeoffs are and how to choose those that fit a specific backup best. The block size As Duplicati makes backups with blocks, aka…