From owner-freebsd-stable@FreeBSD.ORG Sat Aug 18 01:50:56 2007 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 9387D16A418 for ; Sat, 18 Aug 2007 01:50:56 +0000 (UTC) (envelope-from vivek@khera.org) Received: from yertle.kcilink.com (thingy.kcilink.com [74.92.149.59]) by mx1.freebsd.org (Postfix) with ESMTP id 0ED5613C491 for ; Sat, 18 Aug 2007 01:50:56 +0000 (UTC) (envelope-from vivek@khera.org) Received: from [192.168.135.92] (unknown [192.168.135.92]) by yertle.kcilink.com (Postfix) with ESMTP id 8A590B810 for ; Fri, 17 Aug 2007 21:50:55 -0400 (EDT) Mime-Version: 1.0 (Apple Message framework v752.2) In-Reply-To: References: <31BB09D7-B58A-47AC-8DD1-6BB8141170D8@khera.org> X-Gpgmail-State: !signed Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed Message-Id: Content-Transfer-Encoding: 7bit From: Vivek Khera Date: Fri, 17 Aug 2007 21:50:53 -0400 To: FreeBSD Stable X-Mailer: Apple Mail (2.752.2) Subject: Re: large RAID volume partition strategy 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: Sat, 18 Aug 2007 01:50:56 -0000 On Aug 17, 2007, at 7:31 PM, Ivan Voras wrote: > Depending on your allowable downtime after a crash, fscking even a > 1 TB > UFS file system can be a long time. For large file systems there's > really no alternative to using -CURRENT / 7.0, and either gjournal > or ZFS. I'll investigate this option. Does anyone know the stability reliability of the mpt(4) driver on CURRENT? Is it out of GIANT lock yet? It was hard to tell from the TODO list if it is entirely free of GIANT or not. My only fear of this is that once this system is in production, that's pretty much it. Maintenance windows are about 1 year apart, usually longer. > > When you get there, you'll need to create 1 small RAID volume (<= 1 > GB) > from which to boot (and probably use it for root) and use the rest for > whatever your choice is (doesn't really matter at this point). This is > because you can't have fdisk or bsdlabel partitions larger than 2 > TB and > you can't boot from GPT. So what your saying here is that I can't do either my option 1 or 2, but have to create smaller volumes exported as individual drives? Or just that I can't do 1, because my case 2 I could make three 2Tb fdisk slices which bsdlabel can then partition?