From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:57062) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ay5Ol-0004uB-On for qemu-devel@nongnu.org; Wed, 04 May 2016 18:36:09 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ay5OZ-0004eq-Tg for qemu-devel@nongnu.org; Wed, 04 May 2016 18:35:58 -0400 Received: from mga09.intel.com ([134.134.136.24]:62578) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ay5OZ-0004XU-OL for qemu-devel@nongnu.org; Wed, 04 May 2016 18:35:51 -0400 Date: Wed, 4 May 2016 18:42:00 -0400 From: Keith Busch Message-ID: <20160504224200.GB2108@localhost.localdomain> References: <20160428174421.24544.77308.malonedeb@gac.canonical.com> <20160429091039.GC20753@stefanha-x1.localdomain> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20160429091039.GC20753@stefanha-x1.localdomain> Subject: Re: [Qemu-devel] [Bug 1576347] [NEW] Only one NVMe device is usable in Windows (10) guest List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Stefan Hajnoczi Cc: Bug 1576347 <1576347@bugs.launchpad.net>, qemu-devel@nongnu.org > > C:\Windows\system32>sg_vpd -p sn PD1 > > Unit serial number VPD page: > > Unit serial number: 0000_0000_0000_0000." I checked your serial number against the SNT refernce on nvmexpress.org and it's definitely the wrong translation, so that has to be a guest OS driver bug (Linux has the right translation if interested, but it's use is deprecated). I pinged some Windows comrades to see if a potential serial conflict prevents both disks from surfacing. I'm surprised to see this bad translation as I know of folks successfully testing multiple nvme drives in various versions of Windows with both the OFA and Microsoft drivers. An emulated NVMe is no different than real h/w for namespace identification from the host's perspective.