So, I'm moving the contents of an External WD 10TB HDD to a brand new External WD 20TB HDD. It's all movies & tv shows and associated images/files for Jellyfin. A lot of small files, but hundreds of large files too.
I think Buffer Size(MB) is 256 MB by default. I can't remember why I changed it to 512 MB, but I must have. I doubt these settings would be adjustable if default settings were perfect in all situations. I don't understand if bigger is better due to hundreds of very large files. I read the manual page and it doesn't help me a bit.
https://i.imgur.com/omlCVgA.png
What does it mean to use a small value in Buffer Size versus a large value? Say 32MB versus 512MB? I have no clue what the MaxIO settings do and my Google-Fu has been terrible.
https://i.imgur.com/aCWu3iq.png
https://i.imgur.com/zV4c7DL.png
Example of a typical directory & its contents:
https://i.imgur.com/ulIRegM.png
Do you recommend using a single Buffer Size setting regardless of the copy job? Do you recommend I get a different hobby? HELP!