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Re: [Xen-devel] xm block-configure

To: xen-devel@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-devel] xm block-configure
From: Mark Williamson <mark.williamson@xxxxxxxxxxxx>
Date: Sun, 13 Apr 2008 16:58:33 +0100
Cc: Jayson Vantuyl <jvantuyl@xxxxxxxxxxxxxx>
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> Our business currently provides literally thousands of VMs with
> filesystems via blkback / blkfront.

Wow!  Cool :-)

> For security purposes, it's 
> absolutely critical that we keep LVM outside of the VMs.

OK.  I generally recommend keeping LVM outside VMs anyhow, to ease 

> What is the 
> feasibility of getting block-configure to actually update the DomUs
> concept of the disk of a block device device?
> It hasn't worked for us for quite a while.

I don't quite understand what you're trying to do?  Could you please provide a 
little more detail?

Is the idea just to make the resizing of LVM volumes visible to the guest?  
I'm not sure exactly why this would be broken but I can imagine it might have 
been.  It'd certainly be a useful feature to have back.


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