From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Paul B. Henson" <henson@acm.org>
Subject: Re: dm-cache for Fedora 21?
Date: Thu, 27 Feb 2014 14:10:23 -0800
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> From: Rolf Fokkens
> Sent: Thursday, February 27, 2014 1:49 PM
>
> For the moment I assume dm-cache is a per LV caching system (since
> nobody confirmed Paul's idea).

Oh, just to clarify, dm-cache itself can be used to cache a pv, sitting
between the raw device and lvm; it's just that lvm will not support setting
that up, you would have to do that directly with dmsetup... I posted an
inquiry on that topic back in December:

https://www.redhat.com/archives/dm-devel/2013-December/msg00038.html

It was pretty much confirmed that it would work, it would just be a rather
manual process.