Basic volume QoS doc.
The Cinder Basic volume quality of service documentation does
not provide enough information to understand difference
between options to control volume quality of service.
These option can categorized into fixed and burst IOPS per volume
and fixed and burst bandwidth per volume.
Closes-Bug:
@@ -12,18 +12,32 @@ As of the 13.0.0 Rocky release, Cinder supports the following options to
control volume quality of service, the values of which should be fairly
self-explanatory:
+For Fixed IOPS per volume.
+
* `read_iops_sec`
* `write_iops_sec`
* `total_iops_sec`
-* `read_bytes_sec`
-* `write_bytes_sec`
-* `total_bytes_sec`
+
+For Burst IOPS per volume.
+
* `read_iops_sec_max`
* `write_iops_sec_max`
* `total_iops_sec_max`
+
+For Fixed bandwidth per volume.
+
+* `read_bytes_sec`
+* `write_bytes_sec`
+* `total_bytes_sec`
+
+For Burst bandwidth per volume.
+
* `read_bytes_sec_max`
* `write_bytes_sec_max`
* `total_bytes_sec_max`
+
+For burst bucket size.
+
* `size_iops_sec`
Note that the `total_*` and `total_*_max` options for both iops and bytes
