Hi Mike,
Thanks for your reply. Well yes vhdx is very new, it is
not yet released
as it's part of the windows 8 server hyper-v layer which
is currently
in beta as far as I know. But still this is very
interesting and I am a
bit worried that windows 8's hyper-v is going to take a
big step ahead
of other virtualisations solutions.
I love Xen and XCP but I must admit that they've
implemented really nice
features...
I don't think there is any vhdx open source implementation
yet. I
thought there was a partnership between citrix and
microsoft, but maybe
I'm wrong.
Still there is the technical specification document
available on ms site:
http://www.microsoft.com/en-us/download/details.aspx?id=29681
If your storage team want to take a look at it.
Cheers,
Sébastien
On 07.06.2012 10:35, Mike McClurg wrote:
> On 01/06/12 23:29, Sébastien Riccio wrote:
>> Hi,
>>
>> I don't know where this question should be
posted, but I'll try here.
>>
>> Is there any plan for XenServer/XCP/Kronos to
support the vhdx format
>> that should get rid of the 2tb limit for a single
volume ?
>>
>> As seen somewhere on the interweb:
>>
>> Now with VHDX Microsoft kills this limitations
and brings some other
>> improvements:
>>
>> * Supports up to 16TB size
>> * Supports larger block file size
>> * improved performance
>> * improved corruption resistance
>
> I just spoke to our storage team dev lead about this.
The short answer
> is that we want to support it, but we don't have any
plans for it in
> the short term.
>
> The real benefits we would get out of VHDX would be
breaking the 2TB
> limit, and potential performance improvements.
Modifying our current
> VHD implementation might let us do that, without
actually implementing
> VHDX. Perhaps QCOW images might allow disks bigger
than 2TB, but I
> don't really know.
>
> The biggest issue with implementing VHDX is that we
don't know of any
> existing, open-source implementation of it, which
means that we would
> have to invest a lot of time to write our own from
scratch. If anyone
> knows of any existing VHDX implementations that we
can use, I'm sure
> the storage team would like to hear about it!
>
> Mike
>
_______________________________________________
Xen-api mailing list
Xen-api@xxxxxxxxxxxxx
http://lists.xen.org/cgi-bin/mailman/listinfo/xen-api
