From owner-freebsd-questions@FreeBSD.ORG Fri Aug 12 22:28:21 2011 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 00D121065670 for ; Fri, 12 Aug 2011 22:28:21 +0000 (UTC) (envelope-from deuza@me.com) Received: from smtp.smtpout.orange.fr (smtp05.smtpout.orange.fr [80.12.242.127]) by mx1.freebsd.org (Postfix) with ESMTP id 5BA6C8FC12 for ; Fri, 12 Aug 2011 22:28:19 +0000 (UTC) Received: from mbp.maison.com ([81.48.10.211]) by mwinf5d28 with ME id KZyF1h0034ZBwl503ZyFYn; Fri, 12 Aug 2011 23:58:16 +0200 X-ME-engine: default From: Alain AUDEBERT aka 2A Date: Fri, 12 Aug 2011 23:58:12 +0200 Message-Id: <5F5BA901-50F2-4F5F-A1A6-1267E5B7C212@me.com> To: freebsd-questions@freebsd.org Mime-Version: 1.0 (Apple Message framework v1244.3) X-Mailer: Apple Mail (2.1244.3) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Subject: Don't understand df/du output X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 12 Aug 2011 22:28:21 -0000 Hello list, I having a problem to understand the output of du and df command : [root@ftp ~]# df -h /opt/ Filesystem Size Used Avail Capacity Mounted on /dev/xbd6 387G 342G 13G 96% /opt [root@ftp ~]# du -sh /opt/ 342G /opt/ But 387Go - 342Go not equal to 13Go ! Where's the available space ? (same thing with df -k) I have try a tunefs -m 1 /dev/xbd6, unmount, mount and nothing change Is it the 8% reserved by FFS ? Regards, Alain -- -----BEGIN GEEK CODE BLOCK----- Version: 3.1 GIT/MU/S/SS d--(---)@ s++:++>+ a C++>+++ UBLS+++>++++$ P+++ L E--- W++ N++ o+ K- w--(---) O M+(++) V PS++ PE-- Y++ PGP+ !t !5 X++>+ R-- tv- b++ DI++ D+ G++ e+++ h++>+ r y* ------END GEEK CODE BLOCK------