From owner-freebsd-stable@FreeBSD.ORG Tue Mar 22 00:05:24 2011 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id C53EB1065679 for ; Tue, 22 Mar 2011 00:05:24 +0000 (UTC) (envelope-from telbizov@gmail.com) Received: from mail-qw0-f54.google.com (mail-qw0-f54.google.com [209.85.216.54]) by mx1.freebsd.org (Postfix) with ESMTP id 752DB8FC0A for ; Tue, 22 Mar 2011 00:05:24 +0000 (UTC) Received: by qwc9 with SMTP id 9so5045815qwc.13 for ; Mon, 21 Mar 2011 17:05:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=jNyse6UsAKQ670tL/dtr1XxhtagPv1WGZ+Oqs/aGKX4=; b=j2V7L/QTI8mudwIBk6Nx9kvbLDX08pxrhgdMwV4daq/73xRtsnwTn9nlWrCJWcFbm7 gaaB5cWTOEeGbzmlYi2qnaOvukxTdNXGEpbOvr6k23iVB4WMsqjC3SqKyyh51dU3DosP 9qte2E50iuo/L02Pw4+R9nCF1zsVKXvc1gzrQ= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; b=PyEWGAQSAKvDx6BZoACDBGvHZ2ItdUp1XZqwM2Iq8LZzCN8OJk75wpUQL6GG0/EtUs uw0GO/mzRxftrnwagD6iAmcGScpAQ8gR9N+66WM0ltEgizlcGe9kv7XOxGw9YoVEEDum wqrY2G2NkSOrg+y7O2zzxn+6RXcLBYjtQTPKw= MIME-Version: 1.0 Received: by 10.229.119.151 with SMTP id z23mr3979975qcq.2.1300752323094; Mon, 21 Mar 2011 17:05:23 -0700 (PDT) Received: by 10.229.225.4 with HTTP; Mon, 21 Mar 2011 17:05:23 -0700 (PDT) In-Reply-To: References: <1300618959.2191.5.camel@netti> <1300696385.16912.5.camel@pcdenny> Date: Mon, 21 Mar 2011 17:05:23 -0700 Message-ID: From: Rumen Telbizov To: Dmitry Morozovsky Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: freebsd-stable@freebsd.org Subject: Re: SAS HBA LSI 9200-8e supported under 8.2? X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 22 Mar 2011 00:05:24 -0000 > > Booting from mps (while I had to set up gmirror, as only 12 disks are > exported > to BIOS, hence very large raidz's are not allowed to boot from) was not a > problem either. What I did into my 48 disk machine was - create a separate 'zroot' pool comprising of 20G gpt partitions carved of off 8 of those 48 disks in mirror (yeah paranoia!!!) and boot of them. It works nice since I don't waste too much space since it's a partition and gives me a lot of redundancy. What I have is simply the first vdev consisting of partitions that are 20G smaller compared to the rest of the vdevs. All those were organized in raidz2 = 6 x 8disks. Anyway ... something to consider in the cases when you don't have or you don't want to have a dedicated bunch of disks for the operating system. Cheers -- Rumen Telbizov http://telbizov.com