From 2263589ae94d8db2eecbc2cc68f28e893b06cc39 Mon Sep 17 00:00:00 2001 From: Bardia Keyoumarsi Date: Mon, 15 Aug 2016 11:53:06 -0700 Subject: [PATCH] Coho Data: QoS support documentation Closes-Bug: #1610497 Change-Id: I23d717c7d9dc1bd3e4e9ceec4a9a1263783ac716 Signed-off-by: Bardia Keyoumarsi --- .../drivers/coho-data-driver.rst | 28 +++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/doc/config-reference/source/block-storage/drivers/coho-data-driver.rst b/doc/config-reference/source/block-storage/drivers/coho-data-driver.rst index bb60f1ff4a..736a75a8db 100644 --- a/doc/config-reference/source/block-storage/drivers/coho-data-driver.rst +++ b/doc/config-reference/source/block-storage/drivers/coho-data-driver.rst @@ -26,6 +26,34 @@ Supported operations * Create a thin provisioned volume. * Get volume statistics. +Coho Data QoS support +~~~~~~~~~~~~~~~~~~~~~ + +QoS support for the Coho Data driver includes the ability to set the +following capabilities in the OpenStack Block Storage API +``cinder.api.contrib.qos_specs_manage`` QoS specs extension module: + +* **maxIOPS** - The maximum number of IOPS allowed for this volume. + +* **maxMBS** - The maximum throughput allowed for this volume. + +The QoS keys above must be created and associated with a volume type. +For information about how to set the key-value pairs and associate +them with a volume type, run the following commands: + +.. code-block:: console + + $ cinder help qos-create + + $ cinder help qos-key + + $ cinder help qos-associate + +.. note:: + + If you change a volume type with QoS to a new volume type + without QoS, the QoS configuration settings will be removed. + System requirements ~~~~~~~~~~~~~~~~~~~