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From weiz...@apache.org
Subject git commit: updated refs/heads/4.2 to a463f5e
Date Fri, 27 Sep 2013 13:41:55 GMT
Updated Branches:
  refs/heads/4.2 2c0430610 -> a463f5ecc


add docs: disk I/O statistics and disk I/O throttling (KVM)


Project: http://git-wip-us.apache.org/repos/asf/cloudstack/repo
Commit: http://git-wip-us.apache.org/repos/asf/cloudstack/commit/a463f5ec
Tree: http://git-wip-us.apache.org/repos/asf/cloudstack/tree/a463f5ec
Diff: http://git-wip-us.apache.org/repos/asf/cloudstack/diff/a463f5ec

Branch: refs/heads/4.2
Commit: a463f5eccc0bca6d6f3677ee4b35bf6c9d4a50b9
Parents: 2c04306
Author: Wei Zhou <w.zhou@leaseweb.com>
Authored: Fri Sep 27 15:41:13 2013 +0200
Committer: Wei Zhou <w.zhou@leaseweb.com>
Committed: Fri Sep 27 15:41:13 2013 +0200

----------------------------------------------------------------------
 docs/en-US/Release_Notes.xml | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/cloudstack/blob/a463f5ec/docs/en-US/Release_Notes.xml
----------------------------------------------------------------------
diff --git a/docs/en-US/Release_Notes.xml b/docs/en-US/Release_Notes.xml
index a10b74f..a971d31 100644
--- a/docs/en-US/Release_Notes.xml
+++ b/docs/en-US/Release_Notes.xml
@@ -868,6 +868,22 @@ under the License.
           </listitem>
         </itemizedlist>
       </section>
+      <section id="vm-disk-statistics">
+        <title>Disk I/O statistics for VMs</title>
+        <para>(Supported on KVM)</para>
+        <para>The disk I/O statistics for virtual machines, including read/write (bytes
and I/O requests)
+          are collected and save in the database from &PRODUCT; 4.2. The data are also
managed by 
+          &PRODUCT; Usage Server. You can get the statistics through listUsageRecords
API call. </para>
+        <para>This functionality is supported from libvirt 0.9.4. </para>
+      </section>
+      <section id="vm-disk-throttling">
+        <title>Disk I/O throttling for VMs</title>
+        <para>(Supported on KVM)</para>
+        <para>In &PRODUCT; 4.2, you can limit the read/write rate (bytes and I/O
requests per second)
+          at user's virtual machines. This is useful to deduce the mutual influence between
the 
+          virtual machines running on the same storage device.</para>
+        <para>This functionality is supported from libvirt 0.9.8 and QEMU 1.1.0.</para>
+      </section>
     </section>
     <section id="ops">
       <title>Monitoring, Maintenance, and Operations Enhancements</title>


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