| 1 | <?xml version="1.0" encoding="UTF-8"?>
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| 2 | <!DOCTYPE topic
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| 3 | PUBLIC "-//OASIS//DTD DITA Topic//EN" "topic.dtd">
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| 4 | <topic xml:lang="en-us" id="storage">
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| 5 | <title>Virtual Storage</title>
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| 6 |
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| 7 | <body>
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| 8 | <p>
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| 9 | As the virtual machine will most probably expect to see a hard disk
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| 10 | built into its virtual computer, Oracle VM VirtualBox must be able to
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| 11 | present real storage to the guest as a virtual hard disk. There are
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| 12 | presently three methods by which to achieve this:
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| 13 | </p>
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| 14 | <ul>
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| 15 | <li>
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| 16 | <p>
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| 17 | Oracle VM VirtualBox can use large image files on a real hard disk and
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| 18 | present them to a guest as a virtual hard disk. This is the most
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| 19 | common method, described in <xref href="vdidetails.dita#vdidetails"/>.
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| 20 | </p>
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| 21 | </li>
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| 22 | <li>
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| 23 | <p>
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| 24 | iSCSI storage servers can be attached to Oracle VM VirtualBox. This is
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| 25 | described in <xref href="storage-iscsi.dita#storage-iscsi"/>.
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| 26 | </p>
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| 27 | </li>
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| 28 | <li>
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| 29 | <p>
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| 30 | You can allow a virtual machine to access one of your host disks
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| 31 | directly. This is an advanced feature, described in
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| 32 | <xref href="rawdisk.dita">Using a Raw Host Hard Disk From a Guest</xref>.
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| 33 | </p>
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| 34 | </li>
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| 35 | </ul>
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| 36 | <p>
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| 37 | Each such virtual storage device, such as an image file, iSCSI
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| 38 | target, or physical hard disk, needs to be connected to the virtual
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| 39 | hard disk controller that Oracle VM VirtualBox presents to a virtual
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| 40 | machine. This is explained in the next section.
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| 41 | </p>
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| 42 | </body>
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| 43 |
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| 44 |
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| 45 |
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| 46 |
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| 47 |
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| 48 |
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| 49 |
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| 50 |
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| 51 |
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| 52 |
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| 53 |
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| 54 | </topic>
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