Re: [Xen-devel] blktap3 as a block device?

[Darren Shepherd <darren.s.shepherd@xxxxxxxxx>]

On Nov 23, 2012, at 4:39 PM, "Fajar A. Nugraha" <list@xxxxxxxxx> wrote:

> On Sat, Nov 24, 2012 at 7:31 AM, Darren Shepherd
> <darren.s.shepherd@xxxxxxxxx> wrote:
>> So currently blktap2 can be used outside of Xen, but I don't think many
>> people do that.  I have a use case now where I must support KVM (I currently
>> run only Xen servers) and found the disk snapshotting to be not as nice as
>> what I can do with vhd's in blktap2 (and a half).  So I was thinking of
>> actually trying to just run blktap for the storage.  So I'm pretty pleased
>> with that solution and functionally it works just fine.
>> 
>> The problem now is blktap3.  So is there going to be any way to use blktap3
>> outside of Xen?  If blktap3 is the future I probably won't continue with my
>> blktap/kvm solution.
> 
> Since AFAIK blktap3 is not even in xen-unstable, personally I'd just
> use something with more userbase and better tested. Something like
> zfsonlinux. It has support for sparse zvols, as well as snapshot and
> clones.
> 
> -- 
> Fajar

I'm using blktap2, but that's really besides the point.  

The more direct question is going forward with blktap3 is there going to be a 
way to see the blktap device as a block device in dom0?

Darren


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