Comment 0 for bug 1436319

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Kaizoku (neoark) wrote : Unable to increase nr_requests...

Anyone know why ubuntu utopic/trusty doesn’t allow to change nr_requests and I/O scheduler for instance that is running on the cloud running openstack havana?

echo 129 > /sys/block/vda/queue/nr_requests
-bash: echo: write error: Invalid argument

However values lower then 129 works.

Thanks