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andrijapanic pushed a commit to branch volumes-metrics-doc-update
in repository https://gitbox.apache.org/repos/asf/cloudstack-documentation.git
commit 753c9b159967c4abb2fba57846d662368ca2e4e9
Author: Andrija Panic <45762285+andrijapani...@users.noreply.github.com>
AuthorDate: Thu Jul 25 18:02:51 2019 +0200
Description on the volume metrics
---
source/adminguide/storage.rst | 31 +++++++++++++++++++++++++++++++
1 file changed, 31 insertions(+)
diff --git a/source/adminguide/storage.rst b/source/adminguide/storage.rst
index 44f5fcb..63b2ae7 100644
--- a/source/adminguide/storage.rst
+++ b/source/adminguide/storage.rst
@@ -789,6 +789,35 @@ snapshot data.
been taken and stored in OVA format will continue to exist in that
format, and will continue to work as expected.
+Volume Metrics
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Volume statistics are collected on a regular interval (defined by global
+setting volume.stats.interval with a default of 600 seconds).
+This feature is currently only available for VMware and KVM.
+Volume stats include include bytes/s and IO/s statistics as shown in the
+API output bellow.
+
+.. code:: bash
+
+ [root@mgmt]# cmk list volumesmetrics id=272c3d8b-ef2c-499e-abfb-736b54d3d6b1
+ {
+ "count": 1,
+ "volume": [
+ {
+ ...
+ "diskiopstotal": 30245,
+ "diskioread": 22443,
+ "diskiowrite": 7802,
+ "diskkbsread": 343124,
+ "diskkbswrite": 217619,
+ ...
+Bytes read/write statistics are not exposed via UI, as shown in the image
below.
+
+|volume-metrics.png|
+
+These statistics are obtained from the hypervisor directly and they represent
+"current" bytes/s and IO/s values at the time of collection.
.. |AttachDiskButton.png| image:: /_static/images/attach-disk-icon.png
:alt: Attach Disk Button.
@@ -802,3 +831,5 @@ snapshot data.
:alt: Detach Disk Button.
.. |Migrateinstance.png| image:: /_static/images/migrate-instance.png
:alt: button to migrate a volume.
+.. |volume-metrics.png| image:: /_static/images/volume-metrics.png
+ :alt: Volume metrics
