From owner-freebsd-hardware@FreeBSD.ORG Fri Sep 7 14:53:04 2012 Return-Path: Delivered-To: freebsd-hardware@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 4A4AA1065670 for ; Fri, 7 Sep 2012 14:53:04 +0000 (UTC) (envelope-from ayoung@mosaicarchive.com) Received: from mail-ob0-f182.google.com (mail-ob0-f182.google.com [209.85.214.182]) by mx1.freebsd.org (Postfix) with ESMTP id A582B8FC16 for ; Fri, 7 Sep 2012 14:53:03 +0000 (UTC) Received: by obbun3 with SMTP id un3so5989635obb.13 for ; Fri, 07 Sep 2012 07:53:02 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=mime-version:x-originating-ip:date:message-id:subject:from:to :content-type:x-gm-message-state; bh=6ftCRvl4Bl0wO7hi7ljIt2nFQ91X25ei6SXwfarfITY=; b=pVaVJ2PHU/rsxuGgy09M0p/6LumQzmMUCkB9TRTzOzJzztDlws6TC6wkXyo2WSQqOB n06+IrofIFQGtdzwGvGziSh8+vEipaFgGaLupaSdVtOMbqzBVVOgsNKaKkG/fZFGmPBq E9+YWD0R5qAXGUdELlGySAPsXZ3LiEqaOnRamzQw3wMub5WJ4FEmsZGbWCOCTnlSBZ/G +FWD8gUXmpDzRPXCodX465ZEmcTOOwd1Gr1ymP9N5c6qSvd2S2ovG+05knZyq1QGZJ2j B0Bd2FI5A+B4z01yf0BxqRLhaTmB13gVvLYlzR6yLC6VtUELKhTe1dVqibLNY/ilydkZ uqfg== MIME-Version: 1.0 Received: by 10.182.188.41 with SMTP id fx9mr6156884obc.92.1347029582634; Fri, 07 Sep 2012 07:53:02 -0700 (PDT) Received: by 10.76.174.38 with HTTP; Fri, 7 Sep 2012 07:53:02 -0700 (PDT) X-Originating-IP: [75.147.53.134] Date: Fri, 7 Sep 2012 10:53:02 -0400 Message-ID: From: Andy Young To: freebsd-hardware@freebsd.org X-Gm-Message-State: ALoCoQmraO0AdSMypFYNefV7X4VS2Pt4DWKQjN8lMmEX+3xyPyQ9QNVruDkG5vWsRIkiAUgAYgdu Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Subject: Can FreeBSD handle redundant SAS controllers? X-BeenThere: freebsd-hardware@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: General discussion of FreeBSD hardware List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 07 Sep 2012 14:53:04 -0000 I'm having trouble finding information about this on the web. I have a SAS backplane with redundant expanders designed so you can use redundant SAS controllers. Seems obvious to me that the drivers need to support two cards pointing to the same drives. Does this work in FreeBSD? Does it matter which HBAs I buy? Thanks! Andy