From owner-freebsd-questions@FreeBSD.ORG Sat Jun 23 08:21:28 2012 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 36DB61065672 for ; Sat, 23 Jun 2012 08:21:28 +0000 (UTC) (envelope-from freebsd-questions@m.gmane.org) Received: from plane.gmane.org (plane.gmane.org [80.91.229.3]) by mx1.freebsd.org (Postfix) with ESMTP id E1D538FC12 for ; Sat, 23 Jun 2012 08:21:27 +0000 (UTC) Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1SiLav-0005IN-R2 for freebsd-questions@freebsd.org; Sat, 23 Jun 2012 10:21:25 +0200 Received: from pool-173-79-82-23.washdc.fios.verizon.net ([173.79.82.23]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sat, 23 Jun 2012 10:21:25 +0200 Received: from nightrecon by pool-173-79-82-23.washdc.fios.verizon.net with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sat, 23 Jun 2012 10:21:25 +0200 X-Injected-Via-Gmane: http://gmane.org/ To: freebsd-questions@freebsd.org From: Michael Powell Date: Sat, 23 Jun 2012 04:21:13 -0400 Lines: 29 Message-ID: References: <4FE2CE38.9000100@gmail.com> <4FE32C16.3050205@gmail.com> <4FE57481.90601@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 7Bit X-Complaints-To: usenet@dough.gmane.org X-Gmane-NNTP-Posting-Host: pool-173-79-82-23.washdc.fios.verizon.net Subject: Re: Is ZFS production ready? X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: nightrecon@hotmail.com List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 23 Jun 2012 08:21:28 -0000 Hooman Fazaeli wrote: > > I meant, is it now possible to have >2TB FS with UFS? > Yes. The 2TB limitation so many are used to applies more to the tools than the UFS2 file system itself. UFS2 has a max volume size of 2^73, or 8 Zeta-Bytes. If you utilize the old Dos MBR scheme with old fdisk and disklabel tools you will still face the 2TB volume limit. Use Gpart, Glabel, and GPT partitioning instead. A quick and short example: http://www.mebsd.com/configure-freebsd-servers/big-partitions-in-freebsd-bigger-than-2tb.html However, fsck'ing such large volumes will take considerable time if such a thing needs doing. There is the new "Soft-update plus Journaling" coming along with the advent of 9.x, which is supposed to ameliorate this. Not completely sold on it yet, as I don't have enough knowledge/experience yet. Some may say "it's not just quite ready for prime time yet", but I don't really know definitively myself. [snip] -Mike