From owner-freebsd-questions@FreeBSD.ORG Tue Jun 5 05:01:17 2007 Return-Path: X-Original-To: freebsd-questions@freebsd.org 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 7EF7616A46B for ; Tue, 5 Jun 2007 05:01:17 +0000 (UTC) (envelope-from illoai@gmail.com) Received: from ug-out-1314.google.com (ug-out-1314.google.com [66.249.92.171]) by mx1.freebsd.org (Postfix) with ESMTP id 1842813C44B for ; Tue, 5 Jun 2007 05:01:16 +0000 (UTC) (envelope-from illoai@gmail.com) Received: by ug-out-1314.google.com with SMTP id u2so71515uge for ; Mon, 04 Jun 2007 22:01:16 -0700 (PDT) DKIM-Signature: a=rsa-sha1; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=bVDnbG1oVMkr/irLiIozWwJ7CMDR3bPgVEZHy6awjh3FwJj0I0VDaghHHoSbfz45qsEyhA8YuQiA2VF6tqSZJs8e7m1BXRLEWDWr+31MvA7yt+r4OGjgSumJdL2egF8Ag5hUu7aNMaj3Vrs+DjUijFgZGcjI0OUT+ZWGilyEKB8= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=IssDMeuqrmRVCh2+cx3f5gzxGS3I9hDxq6k5qCrrRF/zLhSqFquyMEwTcGkjHpSfOEVaJy5S7mb6PrIRMDv/cBhjZyFPyXPi3Q3WFoxPZ0dPtipJgNT+5IeU8pQxY2dj7bIEJmOW5CkIYEm3RCcjA+FrwKwErIYN6dwLjP+4Wx0= Received: by 10.82.174.20 with SMTP id w20mr7949358bue.1181019675945; Mon, 04 Jun 2007 22:01:15 -0700 (PDT) Received: by 10.82.185.16 with HTTP; Mon, 4 Jun 2007 22:01:15 -0700 (PDT) Message-ID: Date: Tue, 5 Jun 2007 00:01:15 -0500 From: "illoai@gmail.com" To: "Olivier Nicole" In-Reply-To: <200706050415.l554FsDj008294@banyan.cs.ait.ac.th> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <4664DCAB.8050107@careytech.com.au> <200706050415.l554FsDj008294@banyan.cs.ait.ac.th> Cc: freebsd-questions@freebsd.org, ivan@careytech.com.au Subject: Re: How to understand partition sizes 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: Tue, 05 Jun 2007 05:01:17 -0000 On 04/06/07, Olivier Nicole wrote: > > The /server is 9Gb smaller than I partitioned and the actual free space > > without any files in the partition is shown as 396.5Gb which is another > > 34.5Gb smaller. > > The number of disk sectors/blocks allocated to a partition at install > is reduced by the amount of space taken by the system to put file > system information (table of inodes, etc.) plus some percentage of > space kept for security reason (so the operating system can fill up > your partition by more than 100% in case of emergency). There is also the fact that your "500GB" drive is not actually 500GB. I think there is even a FAQ entry about this. -- --