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Subject git commit: updated refs/heads/master to ced2c9e
Date Fri, 09 Aug 2013 00:08:43 GMT
Updated Branches:
  refs/heads/master 42655c541 -> ced2c9e8d

CLOUDSTACK-2402. DOC. Document volume snapshot enhancements for VMware.


Branch: refs/heads/master
Commit: ced2c9e8d5ec6de25ea3e49f9aba32c8b37c0479
Parents: 42655c5
Author: Jessica <>
Authored: Thu Aug 8 17:08:17 2013 -0700
Committer: Jessica <>
Committed: Thu Aug 8 17:08:17 2013 -0700

 docs/en-US/snapshot-performance-vmware.xml | 39 +++++++++++++++++++++++++
 docs/en-US/working-with-snapshots.xml      |  3 +-
 2 files changed, 41 insertions(+), 1 deletion(-)
diff --git a/docs/en-US/snapshot-performance-vmware.xml b/docs/en-US/snapshot-performance-vmware.xml
new file mode 100644
index 0000000..b1ca98a
--- /dev/null
+++ b/docs/en-US/snapshot-performance-vmware.xml
@@ -0,0 +1,39 @@
+<?xml version='1.0' encoding='utf-8' ?>
+<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" ""
+<!ENTITY % BOOK_ENTITIES SYSTEM "cloudstack.ent">
+<!-- Licensed to the Apache Software Foundation (ASF) under one
+ or more contributor license agreements.  See the NOTICE file
+ distributed with this work for additional information
+ regarding copyright ownership.  The ASF licenses this file
+ to you under the Apache License, Version 2.0 (the
+ "License"); you may not use this file except in compliance
+ with the License.  You may obtain a copy of the License at
+ Unless required by applicable law or agreed to in writing,
+ software distributed under the License is distributed on an
+ KIND, either express or implied.  See the License for the
+ specific language governing permissions and limitations
+ under the License.
+<section id="snapshot-performance-vmware">
+  <title>VMware Volume Snapshot Performance</title>
+  <para>When you take a snapshot of a data volume on VMware, &PRODUCT; uses an
+    efficient storage technique to improve performance.</para>
+  <para>A snapshot is not immediately exported from vCenter to a mounted NFS
+    share and packaged into an OVA file format. This operation would consume time and resources.
+    Instead, the original file formats (e.g., VMDK) provided by vCenter are
+    retained. An OVA file will only be created as needed, on demand. To generate the OVA,
+    &PRODUCT; uses information in a properties file (*.ova.meta) which it stored along
+    the original snapshot data. </para>
+  <note><para>For upgrading customers: This process applies only to newly created
snapshots after upgrade to &PRODUCT;
+    4.2. Snapshots that have already been taken and stored in OVA format will continue to
+    exist in that format, and will continue to work as expected.</para></note>
+  <para/>
diff --git a/docs/en-US/working-with-snapshots.xml b/docs/en-US/working-with-snapshots.xml
index b984439..674b232 100644
--- a/docs/en-US/working-with-snapshots.xml
+++ b/docs/en-US/working-with-snapshots.xml
@@ -28,9 +28,10 @@
     <para>Snapshots may be taken for volumes, including both root and data disks. The
administrator places a limit on the number of stored snapshots per user. Users can create
new volumes from the snapshot for recovery of particular files and they can create templates
from snapshots to boot from a restored disk.</para>
 	<para>Users can create snapshots manually or by setting up automatic recurring snapshot
policies. Users can also create disk volumes from snapshots, which may be attached to a VM
like any other disk volume. Snapshots of both root disks and data disks are supported. However,
&PRODUCT; does not currently support booting a VM from a recovered root disk. A disk recovered
from snapshot of a root disk is treated as a regular data disk; the data on recovered disk
can be accessed by attaching the disk to a VM.</para>
 	<para>A completed snapshot is copied from primary storage to secondary storage, where
it is stored until deleted or purged by newer snapshot.</para>
-    <xi:include href="snapshot-throttling.xml" xmlns:xi=""
     <xi:include href="automatic-snapshot-creation-retention.xml" xmlns:xi=""
     <xi:include href="incremental-snapshots-backup.xml" xmlns:xi=""
     <xi:include href="volume-status.xml" xmlns:xi="" />

     <xi:include href="snapshot-restore.xml" xmlns:xi=""
+	<xi:include href="snapshot-throttling.xml" xmlns:xi=""
+	<xi:include href="snapshot-performance-vmware.xml" xmlns:xi=""/>

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