From owner-freebsd-current Thu Mar 14 14:27: 1 2002 Delivered-To: freebsd-current@freebsd.org Received: from dan.emsphone.com (dan.emsphone.com [199.67.51.101]) by hub.freebsd.org (Postfix) with ESMTP id 3DDAF37B416 for ; Thu, 14 Mar 2002 14:26:53 -0800 (PST) Received: from dan.emsphone.com (dan@localhost [127.0.0.1]) by dan.emsphone.com (8.12.2/8.12.2) with ESMTP id g2EMQmv8072485; Thu, 14 Mar 2002 16:26:49 -0600 (CST) (envelope-from dan@dan.emsphone.com) Received: (from dan@localhost) by dan.emsphone.com (8.12.2/8.12.2/Submit) id g2EMQkDx072478; Thu, 14 Mar 2002 16:26:46 -0600 (CST) Date: Thu, 14 Mar 2002 16:26:46 -0600 From: Dan Nelson To: Doug White Cc: Rasmus Skaarup , Poul-Henning Kamp , current@FreeBSD.ORG Subject: Re: GEOM code ready for testing Message-ID: <20020314222646.GD1126@dan.emsphone.com> References: <20020312130810.U18984-100000@skaarup.org> <20020314114358.D17039-100000@resnet.uoregon.edu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20020314114358.D17039-100000@resnet.uoregon.edu> User-Agent: Mutt/1.3.27i X-OS: FreeBSD 5.0-CURRENT X-message-flag: Outlook Error Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG In the last episode (Mar 14), Doug White said: > On Tue, 12 Mar 2002, Rasmus Skaarup wrote: > > Hmm, but I'm not sure all kinds of storage devices have > > serialnumbers that could be fetched (tape devices for instance?) > > and can we rely on the hardware manufacturers to provide unique > > serialnumbers? > > Although it's an isolated case, you do have globally unique > identifiers in FibreChannel. :-) Most SCSI devices also have serial numbers. (root@dan.1) /home/dan># camcontrol inq da0 pass0: Fixed Direct Access SCSI-3 device pass0: Serial Number 363904655202 pass0: 40.000MB/s transfers (20.000MHz, offset 31, 16bit), Tagged Queueing Enabled -- Dan Nelson dnelson@allantgroup.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message