From owner-freebsd-questions@FreeBSD.ORG Mon Jan 26 18:35:43 2015 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 552BF11C for ; Mon, 26 Jan 2015 18:35:43 +0000 (UTC) Received: from mail-ie0-x22e.google.com (mail-ie0-x22e.google.com [IPv6:2607:f8b0:4001:c03::22e]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 1945EA2F for ; Mon, 26 Jan 2015 18:35:43 +0000 (UTC) Received: by mail-ie0-f174.google.com with SMTP id vy18so10459439iec.5 for ; Mon, 26 Jan 2015 10:35:42 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=message-id:date:from:user-agent:mime-version:to:subject:references :in-reply-to:content-type:content-transfer-encoding; bh=qZ8h4kXg4kt45hnW4kF8kyMq10ZEVeqC3BCMS2ykMqE=; b=kcA4paxgRTUldoblZXWRu66DRdteEboI5KW8wXUXOlwXc+DMAA4dx9Xb7B9m2GF7I6 tbe+al+wCPAHcJBCqyqZd9wTqH4ENv1xtNnSnm81tTywPI7Rx1WN72/iph9Pbu1MjU6m wWmljJEAXcw0jB3KUhWjmROSUEIvwS8IsmOIW2RfOCBlhg0/+1HBw3cyOoodO7luXYXO oK5mkO95y309GRsTv6jkwgZbMIyHBzF2VeCLmtbHWPZ9MXGATncWdXBBRLsSea4+dSPX l90siAGIs2znuZOAUPmqZDTllU77pQ70+2r4NvfhZhViaeWzYt80mYiQtyDIQrzGhuls 1k1g== X-Received: by 10.50.25.166 with SMTP id d6mr17767315igg.41.1422297342428; Mon, 26 Jan 2015 10:35:42 -0800 (PST) Received: from localhost.localdomain ([73.3.70.211]) by mx.google.com with ESMTPSA id s94sm6315945ioe.40.2015.01.26.10.35.41 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 26 Jan 2015 10:35:41 -0800 (PST) Message-ID: <54C688FC.4070209@gmail.com> Date: Mon, 26 Jan 2015 11:35:40 -0700 From: jd1008 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.4.0 MIME-Version: 1.0 To: freebsd-questions@freebsd.org Subject: Re: [Semi-OT] SFF-8087 to eSata? References: In-Reply-To: Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 26 Jan 2015 18:35:43 -0000 On 01/26/2015 11:25 AM, C. P. Ghost wrote: > HBA which comes with 2 external SFF-8087 connectors > for 4 drives each (that's an Avago SAS HBA 9207-8e, which > supports up to 1024 HDDs according to specs). I'm trying to understand your statement above. You say each external sff supports 4 drives, yet you say the HBA supports 1024 drives. So, where are all the rest of the ports of the HBA? I know of eSATA chipset that understands when it is connected (via a single connector) to a disk farm. Does you ssf port understand it is connected to a disk farm box? If yes, can you configure your hba to make it talk to a multi-disk (i.e. more than 4 disks) farm via one of the ssf ports?