From owner-freebsd-stable Wed May 8 22: 8:47 2002 Delivered-To: freebsd-stable@freebsd.org Received: from rwcrmhc54.attbi.com (rwcrmhc54.attbi.com [216.148.227.87]) by hub.freebsd.org (Postfix) with ESMTP id 4DB6537B40A for ; Wed, 8 May 2002 22:08:44 -0700 (PDT) Received: from mac.com ([12.231.115.57]) by rwcrmhc54.attbi.com (InterMail vM.4.01.03.27 201-229-121-127-20010626) with ESMTP id <20020509050844.WSK25765.rwcrmhc54.attbi.com@mac.com> for ; Thu, 9 May 2002 05:08:44 +0000 Message-ID: <3CDA045A.1060504@mac.com> Date: Wed, 08 May 2002 22:08:42 -0700 From: paul beard User-Agent: Mozilla/5.0 (X11; U; NetBSD i386; en-US; rv:1.0rc1) Gecko/20020429 X-Accept-Language: en-us, en MIME-Version: 1.0 To: stable@FreeBSD.ORG Subject: question on dump(8) and SCSI tape drive Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG I just installed a DDS-2 tape drive (Archive/Seagate Peregrine with HW compression) and want to do some backups. From what I can tell, a 120m tape should hold 4 Gb of uncompressed data and 8 Gb compressed. I'm puzzled why dump(8) wants 2 tapes to backup 77+ Mb of data (the / partition below) and 44% of a tape for /var (16 Mb). DUMP: estimated 77567 tape blocks on 1.99 tape(s). Filesystem 1K-blocks Used Avail Capacity Mounted on /dev/ad0s1a 99183 77187 14062 85% / /dev/ad0s1f 7302338 3610464 3107687 54% /usr /dev/ad0s1e 19815 15980 2250 88% /var procfs 4 4 0 100% /proc -- Paul Beard 8040 27th Ave NE Seattle WA 98115 206 529 8400 There's no future in time travel To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message