From owner-freebsd-questions Wed Sep 5 13:15:19 2001 Delivered-To: freebsd-questions@freebsd.org Received: from smtp1.phx.gblx.net (smtp1.phx.gblx.net [64.208.25.103]) by hub.freebsd.org (Postfix) with ESMTP id 2F18137B408 for ; Wed, 5 Sep 2001 13:15:12 -0700 (PDT) Received: (from daemon@localhost) by smtp1.phx.gblx.net (8.11.2/8.11.2) id f85KEHO09306; Wed, 5 Sep 2001 13:14:17 -0700 (MST) Received: from UNKNOWN(64.210.27.113), claiming to be "pinkfloyd" via SMTP by smtp1, id smtpdAAA7TaGjs; Wed Sep 5 13:14:12 2001 Message-ID: <023601c13647$223681e0$711bd240@pinkfloyd> From: "Scott Stoddard" To: Cc: References: Subject: RE: tape backup newbie Date: Wed, 5 Sep 2001 13:12:48 -0700 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG I have a similar question. I am looking for resources on installing a atapist ide tape drive into freebsd. The freebsd manual is a little sparse on this subject. I have enabled support in my kernel but I cannot talk to the drive. Should I just be able to use the tape commands at this point or am I missing something? Thanx! --Scott > Date: Wed, 05 Sep 2001 16:20:48 +0200 (CEST) > From: Micke Josefsson > Subject: RE: tape backup newbie > > On 04-Sep-01 Fernan Aguero wrote: > > Hi all, > > > > I have reached a certain size limits on my backups and thus I am > > thinking about switching from CD-R backups to tape backups > > [unless I can confirm that a new dump version that can work with CDs > > will work on FreeBSD, but that's for another thread] > > > > I have been doing some research on this topic but there seem to be a > > lot of things that are taken for granted in almost every tutorial. > > They talk about tape backups as if you already have or know how tape > > backups work. > > > > Does any of you have good pointers to very basic tutorials or howtos > > that answer the kind of questions like: > > > > - can I use 1 tape to do several full backups one after the other? > > (suppose I have a 24GB tape and my full backups are 5-10GB) > > Yes! Use the nonrewinding device nrsaX. With the rewinding device the tape is > rewound after each dump - not what you want! > > > > > - likewise can I use 1 tape to do several incremental backups one after > > the other? > > Yes, as above. However, the tape must be inserted the whole time as it is > rewound at insertion. You can of course skip the first NN dumps and start anew > from there. > > > > > - how are the dumps written to tape? Do I have to take care of naming > > the dump output files uniquely so as to identify them later? (is it > > clear that I have never used a tape before?) > > dumps are written just as they are, no filenames. There is no filesystem on the > tape, only a looong series of bytes. EOF signals end of a dump, two EOFs signal > end of all dumps on that tape. Use mt command to move forward and backward along > the tape. You are personally responsible for what is on the tape ("hmm, the 4th > dump is what I want, I have to move forward to that, then restore from there") > > > > > > > > Thanks in advance, > > > > Fernan > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > > with "unsubscribe freebsd-questions" in the body of the message > > - ---------------------------------- > Michael Josefsson, MSEE > mj@isy.liu.se > > This message was sent by XFMail > running on FreeBSD 4.4-RC > - ---------------------------------- > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message