VirtualBox

source: vbox/trunk/doc/manual/en_US/dita/topics/snapshots.dita@ 104409

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1<?xml version="1.0" encoding="UTF-8"?>
2<!DOCTYPE topic
3 PUBLIC "-//OASIS//DTD DITA Topic//EN" "topic.dtd">
4<topic xml:lang="en-us" id="snapshots">
5 <title>Snapshots</title>
6
7 <body>
8 <p>
9 With snapshots, you can save a particular state of a virtual
10 machine for later use. At any later time, you can revert to that
11 state, even though you may have changed the VM considerably since
12 then. A snapshot of a virtual machine is thus similar to a machine
13 in Saved state, but there can be many of them, and these saved
14 states are preserved.
15 </p>
16 <p>
17 To see the snapshots of a virtual machine, click on the machine
18 name in <ph conkeyref="vbox-conkeyref-phrases/vbox-mgr"/>. In the machine tools menu for the VM, click
19 <b outputclass="bold">Snapshots</b>. The Snapshots tool is
20 displayed.
21 </p>
22 <fig id="fig-snapshots-tool">
23 <title>Snapshots Tool, Showing Snapshot Properties</title>
24 <xref href="images/snapshots-1.png" format="png" platform="htmlhelp">
25 <image href="images/snapshots-1.png" width="10cm" placement="break">
26 <alt>Snapshots Tool, Showing Snapshot Properties</alt>
27 </image>
28 </xref>
29 <image platform="ohc" href="images/snapshots-1.png" width="10cm" placement="break">
30 <alt>Snapshots Tool, Showing Snapshot Properties</alt>
31 </image>
32 </fig>
33 <p>
34 If you select multiple VMs in the machine list, all snapshots are
35 listed for each VM.
36 </p>
37 <p>
38 Until you take a snapshot of the virtual machine, the list of
39 snapshots will be empty, except for the
40 <b outputclass="bold">Current State</b> item. This item
41 represents the current point in the lifetime of the virtual
42 machine.
43 </p>
44 <p>
45 The Snapshots window includes a toolbar, enabling you to perform
46 the following snapshot operations:
47 </p>
48 <ul>
49 <li>
50 <p>
51 <b outputclass="bold">Take.</b> Takes a snapshot of the
52 selected VM. See
53 <xref href="snapshots-take-restore-delete.dita#snapshots-take-restore-delete"/>.
54 </p>
55 </li>
56 <li>
57 <p>
58 <b outputclass="bold">Delete.</b> Removes a snapshot
59 from the list of snapshots. See
60 <xref href="snapshots-take-restore-delete.dita#snapshots-take-restore-delete"/>.
61 </p>
62 </li>
63 <li>
64 <p>
65 <b outputclass="bold">Restore.</b> Restores the VM
66 state to be the same as the selected snapshot. See
67 <xref href="snapshots-take-restore-delete.dita#snapshots-take-restore-delete"/>.
68 </p>
69 </li>
70 <li>
71 <p>
72 <b outputclass="bold">Properties.</b> Displays the
73 properties for the selected snapshot. The
74 <b outputclass="bold">Attributes</b> tab is used to
75 specify a Name and Description for the snapshot. The
76 <b outputclass="bold">Information</b> tab shows VM
77 settings for the snapshot.
78 </p>
79 </li>
80 <li>
81 <p>
82 <b outputclass="bold">Clone.</b> Displays the
83 <b outputclass="bold">Clone Virtual Machine</b> wizard.
84 This enables you to create a clone of the VM, based on the
85 selected snapshot.
86 </p>
87 </li>
88 <li>
89 <p>
90 <b outputclass="bold">Settings.</b> Available for the
91 Current State snapshot only. Displays the
92 <b outputclass="bold">Settings</b> window for the VM,
93 enabling you to make configuration changes.
94 </p>
95 </li>
96 <li>
97 <p>
98 <b outputclass="bold">Discard.</b> For a running VM,
99 discards the saved state for the VM and closes it down.
100 </p>
101 </li>
102 <li>
103 <p>
104 <b outputclass="bold">Start.</b> Start the VM. This
105 operation is available for the <b outputclass="bold">Current
106 State</b> item.
107 </p>
108 </li>
109 </ul>
110 </body>
111
112
113 </topic>
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