[Openstack-operators] Limiting IOPS on a specific VM

Tim Bell Tim.Bell at cern.ch
Sun Feb 2 09:56:44 UTC 2014

With https://wiki.openstack.org/wiki/InstanceResourceQuota, it is possible to define the maximum disk read rate such as

nova flavor-key m1.small  set quota:disk_read_bytes_sec=10240000

Is there a way to do the same thing for one VM rather than for a flavor ? If a hypervisor is encountering a high I/O load, we would like to be able to throttle back the IOPS from some of the VMs temporarily.


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