nova/releasenotes/notes/bp-hyperv-storage-qos-d559634e5df0f1d4.yaml
Lucian Petrut 802a0afa57 Add Hyper-V storage QoS support
Hyper-V provides options to specify maximum IOPS per virtual disk
image.

By leveraging this feature, this blueprint proposes to add support
for setting QoS specs targeting instance local disks as well
as volumes exported through SMB.

This will work similar to the libvirt driver, expecting the same
extra specs.

Implements: blueprint hyperv-storage-qos

Change-Id: I4ce44c8b7ab54a0bfc8c7401e675876dbd109e2d
2016-09-23 11:34:24 -07:00

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YAML

---
features:
- |
The Hyper-V driver now supports the following quota flavor extra
specs, allowing to specify IO limits applied for each of the
instance local disks, individually.
- quota:disk_total_bytes_sec
- quota:disk_total_iops_sec - those are normalized IOPS, thus each
IO request is accounted for as 1 normalized IO if the size of the
request is less than or equal to a predefined base size (8KB).
Also, the following Cinder front-end QoS specs are now supported
for SMB Cinder backends:
- total_bytes_sec
- total_iops_sec - normalized IOPS