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

Holger Kiehl Holger.Kiehl at dwd.de
Fri Mar 22 11:45:52 CET 2019


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?


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