There is also no minimum storage duration, so you can delete files as soon as you upload them (this is important since Borg could possibly delete files immediately after a prune and compact step). They also don't have complicated tiers of storage, every stored file is hot, it can be downloaded as soon as it's uploaded, and there is no limit to how much you can store or retrieve. Downloads are $0.01 per GB (I had downloaded about 650GB/608GiB when I tested this during my DRE, at about $6.50). This translates to about $0.005 per GiB, with the first 10GB free. They mention on their pricing page a flat $5/TB/month pricing (they use SI units, so 1000GB = 1TB, not 1024GiB = 1TiB). Backblaze does not charge for uploads, just storage and downloads. Again, at one point I had over 4TiB stored, with a rough monthly storage cost of about $20 (USD, February 2022).

The upside is, I don't require a NAS in order to restore any client system data.As I mentioned in the abstract, Backblaze B2 storage appears to be quite affordable, and is straightfoward to use. The downside is I have to pay for multiple licenses of the client application. Restoration requires that I have a copy of the backup data (I maintain three+ versions) and the client application.

This approach provides me with all the features of a quality backup compression, dedupe, incremental, block-level backup, etc. My current scenario uses a full-featured backup application on each client system that saves the backup data to my NAS, which is copied to an external drive and the cloud. Is there anything I can do on the ABB side to make backing up the ABB data to B2 more efficient/faster? I'm unclear exactly how ABB stores it's backup files & I'm concerned about trying to upload large files with my limited bandwidth connection.Are there any disadvantages to using the S3 API?

I'm assuming CloudSync is not capable of backing up the ABB store.

Having never used Active Backup, I have a few questions: Synology support has pointed me to a Backblaze blog post about backing up ABB with HyperBackup. I'm considering using Synology's Active Backup for Business but I'm unclear about how that app formats its backup and how the ABB storage can be backed up to B2.

I then backup the nas backup share to BackBlaze B2 via the CloudSync app. I currently backup several LAN systems to a shared folder on my NAS using individual backup apps on each machine.

Backblaze b2 linux backup