Bug#838503: debian-installer: mdadm should not start syncing RAID1 arrays at full speed during installation

[Mikhail Zakharenko]

Hi Cyril!

Could You provide preseed variable for "dev.raid.speed_limit_max" sysctl 
setting?
I want to adjust it to near acceptable value around 50Mbytes per second, 
because RAID 1 installation is really slow now

regards
Mikhail Zakharenko