IO rate-limiting with Ceph RBD (and libvirt)

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I'm trying to determine the best way to go about configuring IO rate-limiting for individual images within an RBD pool.

Here [1], I've found that OpenStack appears to use Libvirt's "iotune" parameter, however I seem to recall reading about being able to do so via Ceph's settings.

Is there a place in Ceph to set IO limits on individual images within an RBD pool? Thanks in advance for the advice.

[1] https://ceph.com/geen-categorie/openstack-ceph-rbd-and-qos/

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Andre Goree
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