[DRBD-user] 'systemctl start drbd' resets /sys/block/sdb/queue/rotational

[Holger Kiehl]

Hello,

I have megaraid controller with only SAS SSD's attached which always
sets /sys/block/sdb/queue/rotational to 1. So, in /etc/rc.d/rc.local
I just did a 'echo -n 0 > /sys/block/sdb/queue/rotational', that fixed
it. But after a 'systemctl start drbd' this value gets reset back to
1. Any idea why this is done?

Regards,
Holger