> > Host with only one osd gets too much data.
> 
> I think this is just fundamentally a problem with distributing 3 replicas 
> over only 4
> hosts.  Every piece of data in the system needs to include either host 3 or 4 
> (and
> thus device 4 or 5) in order to have 3 replicas (on separate hosts).  Add more
> hosts or disks and the distribution will even out.

I also thought that, but the same thing also happen with more hosts.



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