How does resume work?


We have an Alibaba Object Storage (S3 compatible) containing around 250 million objects.
We want to sync it with our local object storage such as Minio. the question is how does the resume work?

Imagine we could sync around 100 million objects (around 30TB), then our rclone instance
stopped for any reason. When we rerun it, does it recheck the past 100 million objects, which have already been downloaded? or does it just resume the reset items? I need technical detail about it.

Yes, if you stop rclone it will recheck the copied objects.

I suggest you use the --checksum parameter to avoid HEAD requests and this will run very quickly.

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