[dm-devel] dm-cache for Fedora 21?

[Paul B. Henson]

> Alasdair G Kergon
> Sent: Wednesday, January 15, 2014 5:22 AM
> 
> On Wed, Jan 15, 2014 at 10:34:46AM +0000, Joe Thornber wrote:
> > I'm not sure what the LVM interface to caching will look like.  But
> > I'd expect you to be able to point to any existing volume and say
> > 'speed that up with XG of cache'.
> 
> To be clear, I'd qualify that as:
>   any existing *Logical Volume*

>From a use case perspective, I'd like to be able to point to a pv (or
perhaps a vg), and say 'speed up that pv/vg with XG of cache',  so hopefully
that will be supported by lvm. My tentative layering for testing dm-cache
prior to lvm support was going to be <raw disk><dm-cache><pv>, ie, the pv
was going to be created on the cached device...