From owner-freebsd-questions Fri Sep 3 12:45:22 1999 Delivered-To: freebsd-questions@freebsd.org Received: from bingnet2.cc.binghamton.edu (bingnet2.cc.binghamton.edu [128.226.1.18]) by hub.freebsd.org (Postfix) with ESMTP id D46AB15729 for ; Fri, 3 Sep 1999 12:45:13 -0700 (PDT) (envelope-from zzhang@cs.binghamton.edu) Received: from sol.cs.binghamton.edu (cs1-gw.cs.binghamton.edu [128.226.171.72]) by bingnet2.cc.binghamton.edu (8.9.3/8.9.3) with SMTP id PAA21247; Fri, 3 Sep 1999 15:44:55 -0400 (EDT) Date: Fri, 3 Sep 1999 15:31:14 -0400 (EDT) From: Zhihui Zhang To: Steve Friedrich Cc: FreeBSD Questions Subject: Re: df inconsistency In-Reply-To: <199909031914.PAA21107@laker.net> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Fri, 3 Sep 1999, Steve Friedrich wrote: > df output on my system: > Filesystem 1K-blocks Used Avail Capacity Mounted on > /dev/wd1s1e 1113967 929244 95606 91% /usr > > Problem is that (total blocks) - (used blocks) does not equal > (available blocks) > 1113967 - 929244 = 184723 = 83% > > 95606/1113967 = 9% (so the inverse is 91%) > > So it appears that 89117 are "unavailable" but not counted as "used". I believe that there is a minimum percentage of disk space 8% reserved for performance reason. If the file system is *entirely* full, its performance will be very bad. Only root can access the reserved part of space. -Zhihui To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message