From owner-freebsd-questions@FreeBSD.ORG Wed Jan 28 20:02:55 2009 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 C5158106566B for ; Wed, 28 Jan 2009 20:02:55 +0000 (UTC) (envelope-from jaime@snowmoon.com) Received: from mail-gx0-f21.google.com (mail-gx0-f21.google.com [209.85.217.21]) by mx1.freebsd.org (Postfix) with ESMTP id 8B2FD8FC17 for ; Wed, 28 Jan 2009 20:02:55 +0000 (UTC) (envelope-from jaime@snowmoon.com) Received: by gxk14 with SMTP id 14so7697337gxk.19 for ; Wed, 28 Jan 2009 12:02:55 -0800 (PST) MIME-Version: 1.0 Received: by 10.150.157.19 with SMTP id f19mr558301ybe.110.1233171416531; Wed, 28 Jan 2009 11:36:56 -0800 (PST) Date: Wed, 28 Jan 2009 14:36:56 -0500 Message-ID: From: Jaime To: freebsd-questions@freebsd.org Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Subject: Quantum tape drive 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: Wed, 28 Jan 2009 20:02:56 -0000 I am trying to replace an older DLT tape drive (which doesn't like to eject tapes any more) with a new Quantum DLT-4 drive. Its connected by internal SCSI and seems to be set up right. But after DAYS of running a tar command, its still not done backing up 60GB. The old drive could backup 70-80GB in about 7 hours. I changed my backup script to include a -v flag in the tar command, and it now lists hundreds or possibly thousands of files. But it never even gets to /home before I killed the process (after 9 hours in this case). Any suggestions? If it helps, the backup script and output from camcontrol follows. However, this script is the same one that worked on the other drive. A quick test with a Knoppix disk suggested that the backups ran faster in Linux. Not positive of this, but it might be true. $ cat /etc/periodic/daily/910.backups #!/bin/sh # echo echo "Tape archives:" dow=`/bin/date +%w` if test "$dow" -gt 1; then echo " Beginning backup." /usr/bin/uptime /usr/bin/tar -cvpX /usr/local/etc/backups/skiplist-relative.txt -f /dev/sa0 -C / . /usr/bin/uptime else echo " Today is a weekend. Skipping backups." fi $ camcontrol devlist at scbus0 target 0 lun 0 (pass0) at scbus0 target 1 lun 0 (pass1) at scbus0 target 2 lun 0 (pass2) at scbus1 target 0 lun 0 (da0,pass3) at scbus2 target 4 lun 0 (sa0,pass4) Any help is greatly appreciated. Thanks in advance, Jaime