Is there a safe way to use 7z compression on duplicati

[Sami_Lehtinen]

This thread seems to have fresh information about this topic, just cross-linking:

Is 7z safe to use yet?

Hi @joshmule, welcome to the forum! The 7z problem is still present. We can use external tools like that, but for compression it is a bit problematic. Duplicati needs to get feedback on how large a file currently is, so we can make sure that the files do not grow over the requested volume size. Normally, the commandline tools take an input and produce a compressed output file. We need to keep updating the output until we reach the file size. If something like this is possible with an externa…