From mboxrd@z Thu Jan 1 00:00:00 1970 From: Samuel Thibault Subject: Re: maximum size of a block device in a domU Date: Mon, 21 Jul 2008 11:54:52 +0100 Message-ID: <20080721105452.GR4501@implementation.uk.xensource.com> References: <20080721104852.3B67B52288@smtp.l00-bugdead-prods.de> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Return-path: Content-Disposition: inline In-Reply-To: <20080721104852.3B67B52288@smtp.l00-bugdead-prods.de> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Sebastian Reitenbach Cc: xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org Sebastian Reitenbach, le Mon 21 Jul 2008 12:48:51 +0200, a =E9crit : > I'm looking for an answer to my question that I have since days, but no= t=20 > found an answer yet.=20 > I am looking for the maximum size a block device, like a harddisk can h= ave? > AFAIK, on vmware, there is a limit at 2TB for block devices of being us= able? > I was already asking on the users list, and searched the archives, but = did=20 > not found a sufficient answer yet, therefore I hope one of the develope= r=20 > 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. Samuel