From mboxrd@z Thu Jan  1 00:00:00 1970
From: Heinz Mauelshagen <heinzm@redhat.com>
Subject: Re: [PATCH] dm-thinp: new device mapper target to thin
 provision storage
Date: Wed, 29 Sep 2010 13:25:36 +0200
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On Wed, 2010-09-29 at 08:29 +0200, Hannes Reinecke wrote:
> Phillip Susi wrote:
> > On 9/28/2010 4:49 PM, Heinz Mauelshagen wrote:
> >> These are 2 new device mapper targets "thinp" and "thinp-dev"
> >> implemented in one module, which allow for thin provisioning of storage
> >> on a single host from a storage pool to an arbitrary amount of devices.
> > 
> > How is this different than snapshotting a zero target?
> > 
> Main difference is that you actually can free up space.
> You can't with snapshotting as then a rollback
> becomes impossible.
> 

Yes, that's right.

Heinz

> Cheers,
> 
> Hannes