From owner-freebsd-fs@freebsd.org Wed Sep 23 15:55:55 2015 Return-Path: Delivered-To: freebsd-fs@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 39E47A07091 for ; Wed, 23 Sep 2015 15:55:55 +0000 (UTC) (envelope-from tjg@ucsc.edu) Received: from mail-wi0-x22b.google.com (mail-wi0-x22b.google.com [IPv6:2a00:1450:400c:c05::22b]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id C5BD812C3 for ; Wed, 23 Sep 2015 15:55:54 +0000 (UTC) (envelope-from tjg@ucsc.edu) Received: by wicge5 with SMTP id ge5so214035125wic.0 for ; Wed, 23 Sep 2015 08:55:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ucsc.edu; s=ucsc-google; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=sUqOpj5XGH35951jGTPZOiX4nGqp10sk13Caa05zrKA=; b=UVKHxpStLGxhu/Fm0/dGhazCmhlqdFKQon29/lx4OGs3JpwzBtmHHo1W9G+bzahl5z 5WkmeQ0a2YqWIi7VKXESHXpKTG/WdmITB2jlOsFiOS3QS6iHbBwJvxFwoSTvyrD52/L6 DLPf+LGwHeVzhTqOkyI4vGTetZk2+6E0n5ZzE= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=sUqOpj5XGH35951jGTPZOiX4nGqp10sk13Caa05zrKA=; b=Mw7iwBfWYfaLLY8Oj+cLTgbnQXcTn04GKAiZv483+fGk0dLBvXOfYAZBLcxLL+37Ko nQdlD9XhtzOi5/LXAMQW+ISpwZ/wNzs9wRQ8hEHJFUyGxW1un5PaxfCj2B1bZEpvFq9G 0C0EKOQxOXmu3Pkv1f82c7prfAqGFhnnWzT+4o5grRwPYj5ZvSqm3fhdjbN1zy+4uf3K MFceegQe/fkXZBsKP6rCxB2CVfil5bFqIEtFCtrdNptHqf0ToL4v9/q/OtNUxzujXccZ QZfXBCbs4JAArotpdPxI7Un624vuvYuCadggzOmVghBOb8PdgmFbmqYrWjuy3bLIdARw XS+Q== X-Gm-Message-State: ALoCoQnkvZDDGNtS8yX7Rolu/AjFYgTn6oWBnKrKNvL2aCz0ysFd+kWDS9uD7w+w5TAs5FeLnS8s MIME-Version: 1.0 X-Received: by 10.180.198.180 with SMTP id jd20mr5150042wic.70.1443023753119; Wed, 23 Sep 2015 08:55:53 -0700 (PDT) Received: by 10.194.92.209 with HTTP; Wed, 23 Sep 2015 08:55:53 -0700 (PDT) In-Reply-To: <56023C15.7080007@fuckner.net> References: <56023C15.7080007@fuckner.net> Date: Wed, 23 Sep 2015 08:55:53 -0700 Message-ID: Subject: Re: Switching from MFI to MRSAS From: Tim Gustafson To: Michael Fuckner Cc: freebsd-fs@freebsd.org Content-Type: text/plain; charset=UTF-8 X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 23 Sep 2015 15:55:55 -0000 > Different driver for different LSI Chipsets That's not what the man page says. The man page says: "Older MegaRAID controllers are supported by mfi(4) and will not work with mrsas, but both the mfi(4) and mrsas drivers can detect and manage the LSI MegaRAID SAS 2208/2308/3008/3108 series of controllers." And goes on to say: "The device.hints(5) option is provided to tune the mrsas driver's behavior for LSI MegaRAID SAS 2208/2308/3008/3108 controllers. By default, the mfi(4) driver will detect these controllers. See the PRIORITY section to know more about driver priority for MR-Fusion devices. mrsas will provide a priority of (-30) (between BUS_PROBE_DEFAULT and BUS_PROBE_LOW_PRIORITY) at probe call for device id's 0x005B, 0x005D, and 0x005F so that mrsas does not take control of these devices without user intervention." The FreeBSD hardware support page specifically says that the "mrsas" driver will handle the Dell PERC H330 controller (which is what I have): https://www.freebsd.org/relnotes/CURRENT/hardware/support.html So that's what I'm asking about. I have a newer card, which according to the man page is supported by the mrsas driver. So my question is, if I "flip the switch" so that the mrsas driver takes over, will everything "just" work, or will I need to re-format my disks because the "mfi" driver configures the disks in a way that is somehow incompatible with the "mrsas" driver. -- Tim Gustafson tjg@ucsc.edu 831-459-5354 Baskin Engineering, Room 313A