<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">OVF is a very broad spec, it doesn't say much about the things that the OVF files refer to. You can put in whatever container format you like. It just happens that streaming VMDK are most suitable because they are compressed.<br><div>
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<br><div><div>On Sep 9, 2009, at 16:30 , Huihong Luo wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><table cellspacing="0" cellpadding="0" border="0"><tbody><tr><td valign="top" style="font: inherit;">That's what I thought about using diff. We can try to impl it.<br><br>I wanted to use it from original place, for example, P2V vm is 250G in size for my laptop, importing will take very long time. <br><br>A simple question, is compression optional? or is it mandatory by spec? I noticed Citrix uses uncompressed VHD for OVF disk.<br><br>--- On <b>Wed, 9/9/09, Achim Hasenmueller <i><<a href="mailto:achim@sun.com">achim@sun.com</a>></i></b> wrote:<br><blockquote style="border-left: 2px solid rgb(16, 16, 255); margin-left: 5px; padding-left: 5px;"><br>From: Achim Hasenmueller <<a href="mailto:achim@sun.com">achim@sun.com</a>><br>Subject: Re: [vbox-dev] GUI feature request<br>To: "Christian Pötzsch" <<a href="mailto:Christian.Poetzsch@sun.com">Christian.Poetzsch@sun.com</a>><br>Cc: "Huihong Luo" <<a href="mailto:huisinro@yahoo.com">huisinro@yahoo.com</a>>, <a href="mailto:vbox-dev@virtualbox.org">vbox-dev@virtualbox.org</a><br>Date: Wednesday, September 9, 2009, 7:20 AM<br><br><div class="plainMail">I think they support random reads but not
random writes. So using a snapshot on them, it could work.<br><br>Volunteers to implement that? Huihong?<br><br>Achim.<br><br>On Sep 9, 2009, at 13:36 , Christian Pötzsch wrote:<br><br>> Hi,<br>> <br>> Huihong Luo wrote:<br>>> For OVF import, I wonder if can add a checkbox to tell whether or not<br>>> clone the virtual disk. For large files, use it from original place is<br>> ideal<br>> <br>> this is not possible. The VMDK's used in the OVF export are in a<br>> compressed format. It is not possible to use that format for working<br>> with the VM's.<br>> <br>> Christian<br>> <br>> --Dr. Christian Pötzsch Sun Microsystems <a href="http://www.sun.com/" target="_blank">http://www.sun.com/</a><br>> <br>> _______________________________________________<br>> vbox-dev mailing list<br>> <a ymailto="mailto:vbox-dev@virtualbox.org" href="x-msg://216/mc/compose?to=vbox-dev@virtualbox.org">vbox-dev@virtualbox.org</a><br>> <a href="http://vbox.innotek.de/mailman/listinfo/vbox-dev" target="_blank">http://vbox.innotek.de/mailman/listinfo/vbox-dev</a><br><br></div></blockquote></td></tr></tbody></table>
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