The above results will assume memory isn't a limitation in the Cloudron service, because of course some with low memory won't be able to get the best speeds without killing the Backup process from using up too much memory. If using rsync, what are the optimum settings, such as for max part size (I believe it's 128 MB from Backblazes docs though I want to confirm this), copy parallel, download parallel, upload parallel?.So for me, would it make sense to use rsync or tgz as the format? What is the optimal format when most files are small in size vs large in size? I have a mix, where some large 1-4 GB files on my Cloudron, but most are of course way smaller KB-sized files.Some questions I want to try and answer (either myself for others or if others have already done the homework please chime in):

they seem to recommend a max part size of 128 MB (source: ), though conflicting that I've heard that we should use their API to determine a value it gives us individually about recommendedPartSize, however I can't see why that'd be different for people, so not sure how that comes to be. What I've learned so far from Backblaze's docs. what are the optimum settings to ensure the speediest upload to Backblaze? This logic we find here will likely applies to other s3 services but I'm thinking Backblaze specifically in this case. I'm playing around with Backblaze for backups instead of Vultr Object Storage, mostly just due to the same price getting me 1TB instead of 250GB, and performance when uploading tarball seems to be approximately the same (also wanted to use my home NAS but having issues with that for now, that's a project for another day, lol).

Synology backblaze