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.z...@leaseweb.com> Authored: Fri Sep 27 15:41:13 2013 +0200 Committer: Wei Zhou <w.z...@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>
