On 2019/06/06 09:25, Marc Roos wrote:
> Hmmm without being a maintainer. I would say cp -r is most used on 
> single disk, so one thread is using the maximum disk iops taking y time 
> to copy.
    not exactly true, if the 1 disk as a 20 disk raid10.

You can target 10 areas at a time and get considerable benefit
if they are spread across multiple disks in the raid.

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