Comment # 2 on bug 1052770 from Howard Guo

Here's the output:

root@g130 /etc/dirsrv #  echo noop > /sys/block/vda/queue/scheduler             
-bash: echo: write error: Invalid argument          
root@g130 /etc/dirsrv # cat /sys/block/vda/queue/scheduler                      
[mq-deadline] none