From owner-freebsd-isp@FreeBSD.ORG Fri Oct 10 22:50:23 2003 Return-Path: Delivered-To: freebsd-isp@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id E35F316A4B3 for ; Fri, 10 Oct 2003 22:50:23 -0700 (PDT) Received: from cobra.acceleratedweb.net (cobra-gw.acceleratedweb.net [207.99.79.37]) by mx1.FreeBSD.org (Postfix) with SMTP id A5CB543FD7 for ; Fri, 10 Oct 2003 22:50:22 -0700 (PDT) (envelope-from simon@optinet.com) Received: (qmail 60457 invoked by uid 110); 11 Oct 2003 05:51:06 -0000 Received: from ool-18baaf5c.dyn.optonline.net (HELO win2kpc1) (24.186.175.92) by cobra.acceleratedweb.net with SMTP; 11 Oct 2003 05:51:06 -0000 From: "Simon" To: "freebsd-isp@freebsd.org" , "PsYxAkIaS (FreeBSD)" Date: Sat, 11 Oct 2003 01:50:20 -0400 Priority: Normal X-Mailer: PMMail 2000 Professional (2.20.2661) For Windows 2000 (5.0.2195;4) In-Reply-To: <001701c38f75$aa4b19e0$dec2fea9@computer> MIME-Version: 1.0 Message-Id: <20031011055022.A5CB543FD7@mx1.FreeBSD.org> Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Content-Filtered-By: Mailman/MimeDel 2.1.1 Subject: Re: Harddisk Problem X-BeenThere: freebsd-isp@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Internet Services Providers List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 11 Oct 2003 05:50:24 -0000 Here is why: manufacturers consider 1GB = 1,000,000,000 bytes, so 80gb drive is really 80,000,000,000 / 1024 / 1024 / 1024 = 74.5GB Now, why you get 68 usable space out of 73gb? 8% of usable space is held back by freebsd due to performance issues. You can change this to 0%, but it is not suggested. If you still want to, read man tunefs, option -m -Simon On Sat, 11 Oct 2003 00:29:55 +0300, PsYxAkIaS (FreeBSD) wrote: >Hello, > >We just installed and mounted a 2nd HDD(secondary ide channel) on a Dedicated Server on FreeBSD 4.8 and look what it gives: > >] df >Filesystem 1K-blocks Used Avail Capacity Mounted on >/dev/ad0s1a 2015918 52114 1802532 3% / >/dev/ad0s1f 22479870 16924774 3756708 82% /usr >/dev/ad0s1e 4031950 73418 3635976 2% /var >procfs 4 4 0 100% /proc >/dev/ad2s1e 76958474 4 70801794 0% /drive2 > >] df -h >Filesystem Size Used Avail Capacity Mounted on >/dev/ad0s1a 1.9G 51M 1.7G 3% / >/dev/ad0s1f 21G 16G 3.6G 82% /usr >/dev/ad0s1e 3.8G 72M 3.5G 2% /var >procfs 4.0K 4.0K 0B 100% /proc >/dev/ad2s1e 73G 4.0K 68G 0% /drive2 > >] cat /etc/fstab ># See the fstab(5) manual page for important information on automatic mounts ># of network filesystems before modifying this file. ># ># Device Mountpoint FStype Options Dump Pass# >/dev/ad0s1b none swap sw 0 0 >/dev/ad0s1a / ufs rw 1 1 >/dev/ad0s1f /usr ufs rw 2 2 >/dev/ad0s1e /var ufs rw 2 2 >/dev/acd0c /cdrom cd9660 ro,noauto 0 0 >proc /proc procfs rw 0 0 >/dev/ad2s1e /drive2 ufs rw 2 2 > >The problem is that from 73GB (80gb hdd) it only sees free 68GB. > >How can i check if it has bad sectors? A friend suggested me low-level format but I never done that before under unix. > >Also, do i need to be in single-user (I dont have physical access, only remote root via ssh). > > >Thank you. >_______________________________________________ >freebsd-isp@freebsd.org mailing list >http://lists.freebsd.org/mailman/listinfo/freebsd-isp >To unsubscribe, send any mail to "freebsd-isp-unsubscribe@freebsd.org" >