Re: [Xen-devel] maximum size of a block device in a domU

["Sebastian Reitenbach" <sebastia@xxxxxxxxxxxxxxxxxxxx>]

Hi Samuel,

Samuel Thibault <samuel.thibault@xxxxxxxxxxxxx> wrote:
> Sebastian Reitenbach, le Mon 21 Jul 2008 12:48:51 +0200, a écrit :
> > I'm looking for an answer to my question that I have since days, but not
> > found an answer yet.
> > I am looking for the maximum size a block device, like a harddisk can
have?
> > AFAIK, on vmware, there is a limit at 2TB for block devices of being
usable?
> > I was already asking on the users list, and searched the archives, but
did
> > not found a sufficient answer yet, therefore I hope one of the developer
> > will let me know.
>
> For HVM domU, since qemu supports lba48, the maximum should be 2^57B
> there, not tested though :) The actual limit is then the size that dom0
> itself can cope with.
>
> For PV domU, the PV interface is 64bit, so theorically 2^73B...  Then
> it's up to limitations of dom0 and domU themselves.

Thanks a lot for the fast and informative answer.

Sebastian


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