I am moving data from an external USB 2.5" hard drive (encrypted with
cryptsetup) to an unencrypted internal 1TB 3.5" hard drive on a GNU/Linux quad-core headless server with 2GB RAM, using Midnight Commander over an SSH connection. The USB drive is connected directly to the server; I am not copying data over the SSH connection.
Copying speed, according to Midnight Commander, is maxing at around 950 KB/s. Is this very slow? I'm sure it should copy faster than that? Less than 1MB/s is very slow? The machine, which is otherwise idle, has a load average now of over 2.0.
I am moving the files across as a backup, because I am experiencing input/output errors in one folder on the USB drive. I have not selected that folder for copying now, and all other files are copying via Midnight Commander without any errors.
Edit: Follow-up question here for reference.