From owner-freebsd-questions@freebsd.org Fri May 13 13:55:35 2016 Return-Path: Delivered-To: freebsd-questions@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 3831AB3A341 for ; Fri, 13 May 2016 13:55:35 +0000 (UTC) (envelope-from byrnejb@harte-lyne.ca) Received: from inet08.hamilton.harte-lyne.ca (inet08.hamilton.harte-lyne.ca [216.185.71.28]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "inet08.hamilton.harte-lyne.ca", Issuer "CA HLL ISSUER 01" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 0DDE31CB6 for ; Fri, 13 May 2016 13:55:34 +0000 (UTC) (envelope-from byrnejb@harte-lyne.ca) Received: from localhost (localhost [127.0.0.1]) by inet08.hamilton.harte-lyne.ca (Postfix) with ESMTP id 73DD96222D for ; Fri, 13 May 2016 09:55:33 -0400 (EDT) X-Virus-Scanned: amavisd-new at harte-lyne.ca Received: from inet08.hamilton.harte-lyne.ca ([127.0.0.1]) by localhost (inet08.hamilton.harte-lyne.ca [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id l8G1IfuFHzvE for ; Fri, 13 May 2016 09:55:31 -0400 (EDT) Received: from webmail.harte-lyne.ca (inet04.hamilton.harte-lyne.ca [216.185.71.24]) (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by inet08.hamilton.harte-lyne.ca (Postfix) with ESMTPSA id B246262226 for ; Fri, 13 May 2016 09:55:30 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=harte-lyne.ca; s=dkim_hll; t=1463147731; bh=dKZ0fZAaqUm2n6k0L9dlePrBIp3cMOXBnpUuugupm9Q=; h=In-Reply-To:References:Date:Subject:From:To:Reply-To; b=YS25Jvox9vOvpPenZZjcA3TyHXtCpaFsBrLLSW9d1XVrJDfKklYlmsm9fyH4YgT5r gGlZ4VP1Ik6vN++B3Fs0WDtm8mtH/NI/KpZFjbmfbR3BNW7mL52CDfYWCFygMqZ3UY eYQcvEo3pl3VyKH6lhFH8qqUiNpZoUlEPXnJr6qIt3Nr3khOHxjvQQDiLC+bw7WzjH T8WbhMVqGRB9adtEbQ3wHfeB2K1rKit1SYFXR/JOaj8XNlWytZWiWB6Tgl7VKxVj3a BuvFSvnpNAGuMu+6C9bGHF+1KUbtT/xb8zqI2RtbD/mQw8uqumusaPxRGFggg6yxHE ttp3OIAM7aT0Q== Received: from 216.185.71.44 (SquirrelMail authenticated user byrnejb) by webmail.harte-lyne.ca with HTTP; Fri, 13 May 2016 09:55:31 -0400 Message-ID: <715faec7a2abc20924c7b2ee7ff79204.squirrel@webmail.harte-lyne.ca> In-Reply-To: References: Date: Fri, 13 May 2016 09:55:31 -0400 Subject: Re: FreeBSD-10.3 root ZFS From: "James B. Byrne" To: freebsd-questions@freebsd.org Reply-To: byrnejb@harte-lyne.ca User-Agent: SquirrelMail/1.4.22-4.el6 MIME-Version: 1.0 Content-Type: text/plain;charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Priority: 3 (Normal) Importance: Normal X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 13 May 2016 13:55:35 -0000 On Fri, May 13, 2016 09:06, James B. Byrne wrote: > I am going through an initial install using the automatic guided root > on zfs procedure. I have selected the 2 redundant disks raid option. > I am at the point where I assign the disks to the zpool. I have 8 > disks listed. These have the dev ids: ada0-ada3 and da0-da3. The > descriptions of the four adaX devs all begin with 'WDC WD30EFRX-...' . > The descriptions of the four daX devs all begin with 'ATA WDC > WD30EFRX-...'. > > What is the significance of this, if any? > > Given this hardware specification for the SYS-5027R-WRF: SATA 2x SATA 3.0 ports (6Gbps) 4x SATA 2.0 ports (3Gbps) SCU 4x SATA ports (3Gbps) via SCU I infer that the four ada0-ada3 devices are connected via SATA notwithstanding the IDE nomenclature used for the device names and that the the four da0-da3 devices are connected via SAS through the SCU given the SCSI nomenclature used for their device names. Since the four SCU devices are 3Gbps I speculate the the four SATA devices are also connected at 3Gbps. So, what would the two 6Gbps ports be used for? -- *** e-Mail is NOT a SECURE channel *** Do NOT transmit sensitive data via e-Mail Do NOT open attachments nor follow links sent by e-Mail James B. Byrne mailto:ByrneJB@Harte-Lyne.ca Harte & Lyne Limited http://www.harte-lyne.ca 9 Brockley Drive vox: +1 905 561 1241 Hamilton, Ontario fax: +1 905 561 0757 Canada L8E 3C3