On 2017-12-27 06:58, Robert P. J. Day wrote:
> time to kill, so i found an unused 1TB USB hard drive in the drawer
> and thought, what the heck, just do an end-of-year backup of all of
> /home/rpjday on my fedora box, and since i don't care how long it
> takes, i just did a basic "cp -a" to preserve owner/group/timestamps,
> and it's chugging away, but i'm curious ... what would be the
> *fastest* way to do that?
>
> should i have run it through tar with compression, or rsync with
> compression, or scp, or ... you get the idea. i suspect that since i
> didn't take advantage of compression, i'm currently being limited by
> the throughput of the USB port and i'm currently doing it the slowest
> way possible.
I'd be using rsync -vaP so that subsequent updates are faster, but tar zcvf
might be faster due to compression... but that depends on USB 2 vs 3, speed of
CPUs... I prefer gzip over bzip, but I've not benchmarked them for
optimization of compression ratio vs cpu bandwidth.
> thoughts?
>
> rday
slainte mhath, RGB
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