I have such config:
none on /storage type aufs 
(rw,sum,create=rr,br:/storage1=rw:/storage2=rw:/storage3=rw:/storage4=rw:/storage5=rw:/storage6=rw:/storage7=rw:/storage8=rw)

And wrote small bash-script for backup:

#!/bin/bash
cp -aufx /storage1/* /storage2
cp -aufx /storage2/* /storage1
cp -aufx /storage3/* /storage4
cp -aufx /storage4/* /storage3
cp -aufx /storage5/* /storage6
cp -aufx /storage6/* /storage5
cp -aufx /storage7/* /storage8
cp -aufx /storage8/* /storage7


Now I have problem,
DSK |         sde | busy     99% | read   230/s | write    3/s | avio  4 
ms |
DSK |         sdf | busy     95% | read   213/s | write    0/s | avio  4 
ms |
DSK |         sdg | busy     34% | read   157/s | write    0/s | avio  2 
ms |


aufs use only one disk, but same files are on two disks.
Now using only /storage1, /storage3, /storage5, /storage7, and disks are 
red. I want to use all disks, how can I do this?
-- 
WBR, Andrey Vasilishin CDIG1-UANIC, CDIG1-RIPE

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