Is it possible to guarantee a Cinder I/O rate for an instance?

Solution Unverified - Updated -

Issue

Since Havana we have QoS support for Cinder:

https://wiki.openstack.org/wiki/ReleaseNotes/Havana#libvirt_.28KVM.29_driver

Using this I can set upper max for for IOPS and BW on a per volume basis. Question is, is it possible somehow to set min values as well, i.e. guarantee rate for a volume?

Environment

  • Red Hat OpenStack

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