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RE: [Xen-devel] What the most efficient way to access HVM guest'sfilesystem from dom0?


  • To: 胡少龙 <sunofblack@xxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • From: "James Harper" <james.harper@xxxxxxxxxxxxxxxx>
  • Date: Fri, 1 Oct 2010 17:13:45 +1000
  • Cc:
  • Delivery-date: Fri, 01 Oct 2010 00:14:53 -0700
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: ActhNxeZytusXs65QnSlAikSapmKJAAAEWxA
  • Thread-topic: [Xen-devel] What the most efficient way to access HVM guest'sfilesystem from dom0?

> 
> Hi,
> 
> What the most efficient way to get a file from a Windows HVM guest from dom0
> when the guest is running? No need to change the file, just read it.
> 

If the DomU is running on top of LVM then an LVM snapshot which is then mounted 
in Dom0 using ntfs-3g is probably the best way.

If not running LVM (or a SAN that can take snapshots) then I think your only 
other choice is smbclient.

In theory, you could take a VSS snapshot in DomU, then mount that snapshot in 
Dom0 and read that, but I don't know if software exists to do that, or if it 
would work anyway.

James

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