Rustedt, Florian schrieb:

Hello List,

while resyncing, the process takes the whole bandwidth from disk to disk.

This leads in a VERY unhappy situation, because the system on this raid is
unpractical slow now, because it has to wait for disk-io.

How can i tune this? I want somthing like "nice -n 19 dm-mirror" ;)

Look into sync_speed_min and sync_speed_max in /sys/block/mdX/md.


-- 
Tomasz Chmielewski
http://blog.wpkg.org