docs: Add Release Notes about Disk I/O Polling and Throttling
Project: http://git-wip-us.apache.org/repos/asf/cloudstack/repo Commit: http://git-wip-us.apache.org/repos/asf/cloudstack/commit/c6672dd6 Tree: http://git-wip-us.apache.org/repos/asf/cloudstack/tree/c6672dd6 Diff: http://git-wip-us.apache.org/repos/asf/cloudstack/diff/c6672dd6 Branch: refs/heads/disk-cache Commit: c6672dd68a6f94b7fb6d1a0e4e4ac3a4ab7b9758 Parents: f5e7f46 Author: Wido den Hollander <w...@widodh.nl> Authored: Fri Aug 30 17:04:54 2013 +0200 Committer: Wido den Hollander <w...@widodh.nl> Committed: Fri Aug 30 17:05:21 2013 +0200 ---------------------------------------------------------------------- docs/en-US/Release_Notes.xml | 9 +++++++++ 1 file changed, 9 insertions(+) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/cloudstack/blob/c6672dd6/docs/en-US/Release_Notes.xml ---------------------------------------------------------------------- diff --git a/docs/en-US/Release_Notes.xml b/docs/en-US/Release_Notes.xml index dbd7520..15b452c 100644 --- a/docs/en-US/Release_Notes.xml +++ b/docs/en-US/Release_Notes.xml @@ -243,6 +243,15 @@ under the License. the patch disk a VirtIO serial console is used to pass meta information to System VMs. This enabled the deployment of System VMs on RBD Primary Storage.</para> </section> + <section id="disk-io-polling-throttling"> + <title>Disk I/O polling and throttling</title> + <para><ulink url="https://issues.apache.org/jira/browse/CLOUDSTACK-1192";>CLOUDSTACK-1192</ulink>: + On KVM hypervisors polling and throttling of disk I/Os is supported. Per disk disk attached to + an Instance the usage server will record the amount of IOps.</para> + <para>Per disk offering you are able to specify the number of Read and Write I/Os. Trottling is + done by Qemu/KVM.</para> + <para>Both polling and throttling only works with KVM and with all types of Primary Storage.</para> + </section> </section> <section id="issues-fixed-4.2"> <title>Issues Fixed in 4.2.0</title>
