What is recommended when copying large volumes and sized files?

[ncw (Nick Craig-Wood)]

Being relatively new to rclone, is the command below sufficient in achieving the following (with or without encryption)?

• Resuming transfers if interrupted
• Delta transfers
• Displaying itemized changes
• Preserving metadata such as permissions, ownership
• Parallelization

You command will do pretty well at that, though you don't want --stats and --progress (and --stats takes a time unit, eg --stats 10s.

Rclone doesn't do delta transfers like rsync (cloud storage doesn't support it in general) nor preserve permissions (same reason). You can quit and restart rclone and it will pick up where it left off. Rclone is very good at parallel transfers.

Rclone stores files 1:1 your disk -> cloud storage.

If you want a backup program which does do delta transfers and preserve permissions then you could use restic which can use rclone as a backend to store the actual objects.

Additionally, will the command below support verification of corruption and a successful write after the initial upload?

Rclone checks checksums after each upload. You can also use rclone check to do a complete check of all the checksums.

What is the recommendation to limit the rate of transfer so that bandwidth utilization isn't saturated? The current upload limit is approximately 40Mbps.

Use --bwlimit. The parameter it takes is in bytes/s so 40Mbit/s = 8 MByte/s. Knock that down a bit to avoid saturation, say --bwlimit 7M (you'll probably need to experiment).