From owner-freebsd-fs@FreeBSD.ORG Thu Nov 16 17:55:00 2006 Return-Path: X-Original-To: freebsd-fs@freebsd.org Delivered-To: freebsd-fs@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 6B99A16A4CA for ; Thu, 16 Nov 2006 17:55:00 +0000 (UTC) (envelope-from user@dhp.com) Received: from shell.dhp.com (shell.dhp.com [199.4.150.5]) by mx1.FreeBSD.org (Postfix) with ESMTP id 171F243D53 for ; Thu, 16 Nov 2006 17:55:00 +0000 (GMT) (envelope-from user@dhp.com) Received: by shell.dhp.com (Postfix, from userid 896) id 2499C263EE; Thu, 16 Nov 2006 12:54:58 -0500 (EST) Date: Thu, 16 Nov 2006 12:54:58 -0500 (EST) From: Ensel Sharon To: freebsd-fs@freebsd.org Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Subject: what is the safe <2 TB number, precisely ? X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 16 Nov 2006 17:55:00 -0000 (6.1-RELEASE - already installed and running with other arrays) I am installing a new array of 5 500 GB disks. It's hard to say what the total raw space will be, but it will certainly be above 2 TB. However, I want to ensure a ZERO-exposure to any 2 TB limit issues (with quotas, and disk tools and snapshots, etc.) So with that in mind, when I go into my adaptec firmware to create an array, and it asks me to specify the size of the array, I am going to type in a number _less than_ the max possible size. So the question is, do I type in 1999 ? 2000 ? 2047 ? 2048 ? What number is totally, absolutely safe and will shield me from _all possible_ BIGDISK related issues ? I am leaning towards 1999 since that _must be_ safe...but am curious if I could get away with 2047 or 2048 ... All comments appreciated. Thank you!