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Feature Request: Backblaze B2 As Backup Target



  • @girish Awesome! This is such exciting new! Thank you for prioritizing it and getting it into the next release.

    I'm curious...

    1. Will it be using the native B2 API or with their S3 compatible API?
    2. Will it be optimized to support rsync backups and not just tar/zip?

    Again, huge kudos for baking in B2 support!


  • Staff

    @adrw It will use the S3 compatible API. Both rsync and zip options will be available.



  • @adrw Tested using the S3 compatibility setup and it works perfectly with rsync and tarballs, and the rsync actually doesn't cost anything significant so is still worth doing.

    Very happy with the backup systems and both Backblaze B2 and Wasabi for speed and value. Great work team Cloudron - and hope that's some confident happiness for everyone wondering if either are worth trying.



  • @marcusquinn Great to hear! Curious your experience with B2 rsync. I have a fairly large backup (~250GB) and it seems to blast through the Class C transactions very fast to the point of making rsync multiple times more expensive than tar zip backup. I’m giving it another shot based on your experience, hopefully the increased cost is only on first run.

    @girish Is there a way I can increase the backup timeout? For my large (~250GB) backup it keeps timing out while uploading ~8mbps to B2 and making 65-70% progress. If the timeout can be configurable or increased it looks like it would succeed. Thanks!


  • Staff

    @adrw I am working on some fixed for the next release (as part of https://git.cloudron.io/cloudron/box/-/issues/691). Some settings like copy concurrency, upload concurrency, total backup timeout etc seem to be very installation specific. So, we will expose these in the UI.



  • @girish Great to hear and thanks for prioritizing this. For my own sake, when do you expect those settings will be exposed? I haven't had a successful backup in 3 days since some additional data was uploaded to a Nextcloud instance so I'm starting to sweat a bit. Both tar and rsync fail with the same timeout error after running for hours. If it can land in the next week or two then I'll probably stick it out until then. Otherwise I'm going to revert the data migration so that backups can start again. Many thanks again!



  • @adrw If ingress is too pricey for your volumes with Backblaze then Wasabi is very competitive and doesn't charge for any ingress up or down.



  • @marcusquinn Thanks for the recommendation! It only seems to be a bit pricey when using the rsync backup mode. For tar it works great. Both seem to timing out so I'm hoping @girish exposing some more knobs to turn will allow improvement of backup speed.



  • @girish Good news, rsync backups are now succeeding since the diffs are small and a few failed ones were able to build on each other so no rush on the configuration. Looking forward to testing it out once it lands! Thanks again!


  • Staff

    @adrw I have scheduled configuring the timing issues for 5.5 in any case. We have a couple of others facing similar issues.