From: Paul Brook <paul@codesourcery.com>
To: qemu-devel@nongnu.org
Cc: Charles Duffy <Charles_Duffy@messageone.com>
Subject: Re: [Qemu-devel] [PATCH] add file: migration support (r2)
Date: Tue, 18 Nov 2008 12:57:41 +0000 [thread overview]
Message-ID: <200811181257.42351.paul@codesourcery.com> (raw)
In-Reply-To: <20081118030437.GA940@shareable.org>
On Tuesday 18 November 2008, Jamie Lokier wrote:
> Paul Brook wrote:
> > > I'm not sure if "live" migration to a file is really useful. "Dead"
> > > migration is useful for suspending a VM to disk.
> >
> > Right. That's the point I was trying to make.
>
> I thought of a use for live migration to and from a file. It's when
> you have to restart a host while minimising downtime of all its
> guests. The liveness reduces that downtime.
I wouldn't be surprised if this actually took longer, because you have to read
more data in when you do the restore.
Paul
next prev parent reply other threads:[~2008-11-18 12:57 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-11-13 18:04 [Qemu-devel] [PATCH] add file: migration support (r2) Charles Duffy
2008-11-13 18:39 ` Jamie Lokier
2008-11-13 18:44 ` Paul Brook
2008-11-13 18:49 ` Anthony Liguori
2008-11-14 3:33 ` Jamie Lokier
2008-11-14 3:49 ` Paul Brook
2008-11-18 3:04 ` Jamie Lokier
2008-11-18 12:57 ` Paul Brook [this message]
2008-11-18 14:26 ` Anthony Liguori
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