Slow copy between Backblaze B2 and OVH Public Cloud (Object storage)

General
1

Hi everyone,
I just discovered rcloneview when trying to find a way to transfer a lot of data from Backblaze B2 Cloud storage to OVH public cloud (S3 compatible). I am new to it so forgive my lack of understanding on some aspects of the soft (I never used rclone also).
It works great (I can connect to both remote drives), but when I copy from Backblaze to OVH, the transfer speed is very slow (between 2,5 and 6MB/s). Any clue about the cause of this and the possibility to speed things up ? (it is very likely that I am missing something in the settings of either OVH or Backblaze but I am not an IT guy :)).
Thanks in advance,
Alexandre

2

You’ve run into a really common issue when transferring files between two cloud services like Backblaze B2 and OVH using a tool on your computer: the data has to pass through your local machine first.

Think of it this way—you’re moving boxes from one warehouse (Backblaze B2) to another (OVH). But instead of shipping them directly, you’re acting as the middleman, moving each box yourself.

Here’s what actually happens:

  1. Download to your computer: rclone first downloads the files from Backblaze B2 to your local machine.
  2. Upload from your computer: Then it uploads those files from your machine to OVH.

This means your transfer speed is limited by both your download and upload speeds at home.

Hope that clears things up! Feel free to ask if anything else comes up.

3

Thanks a lot for this detailed answer. I whish there was a way to transfer between to services without having to download on my local machine :smiling_face_with_tear:
I’ll use my local backups then to upload directly to OVH (as I will avoid download fees from Backblaze).
Thanks again !!