From owner-freebsd-chat Fri Apr 5 10:25:18 2002 Delivered-To: freebsd-chat@freebsd.org Received: from odin.ac.hmc.edu (Odin.AC.HMC.Edu [134.173.32.75]) by hub.freebsd.org (Postfix) with ESMTP id D1B2C37B41D for ; Fri, 5 Apr 2002 10:25:09 -0800 (PST) Received: (from brdavis@localhost) by odin.ac.hmc.edu (8.11.0/8.11.0) id g35IP4Z04023; Fri, 5 Apr 2002 10:25:04 -0800 Date: Fri, 5 Apr 2002 10:25:04 -0800 From: Brooks Davis To: "f.johan.beisser" Cc: Brett Glass , freebsd-chat@FreeBSD.ORG Subject: Re: backup solutions Message-ID: <20020405102504.A29398@Odin.AC.HMC.Edu> References: <4.3.2.7.2.20020405084626.00b8e360@nospam.lariat.org> <20020405092135.A96787-100000@pogo.caustic.org> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-md5; protocol="application/pgp-signature"; boundary="sm4nu43k4a2Rpi4c" Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: <20020405092135.A96787-100000@pogo.caustic.org>; from jan@caustic.org on Fri, Apr 05, 2002 at 09:53:25AM -0800 Sender: owner-freebsd-chat@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org --sm4nu43k4a2Rpi4c Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Apr 05, 2002 at 09:53:25AM -0800, f.johan.beisser wrote: > On Fri, 5 Apr 2002, Brett Glass wrote: >=20 > > At 10:08 PM 4/4/2002, f.johan.beisser wrote: > > > > >my own preference is tape. > > > > > >tape.. > > > > > > 1. tape transfers between machines, and usually OSs fairly wel= l. > > > > I've found that tape drives often do not read tapes written on other > > drives reliably. The electrical, rather than mechanical, interface of > > a hard drive eliminates that problem. >=20 > this is a matter of having good hardware, i believe. i've had very few > problems with Sony AIT and AIT2 tapes. older DLT-IV tapes seem to be > somewhat inconsistent in quality. Newer Fujifilm DLTs have been very good > to me. It's certaintly true that early helical scan products were crap in this department. It's probably best to assume that there's a significant chance that only a data recovery shop will be able to read a DDS1 tape if the drive dies and it was from the DDS1 era. That's not to say you can't transfer data with them, but since the road to failure generally starts with misaligned heads, tapes written at the end of a drives life are often bad. Having said that, modern helical scan devices are quite solid and my Sony DDS3 drive has survived much more time and use then the old HP DDS1s we used for backups in college. -- Brooks --=20 Any statement of the form "X is the one, true Y" is FALSE. PGP fingerprint 655D 519C 26A7 82E7 2529 9BF0 5D8E 8BE9 F238 1AD4 --sm4nu43k4a2Rpi4c Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: For info see http://www.gnupg.org iD8DBQE8rev/XY6L6fI4GtQRAoGyAKDfibrBJrr4VndFT9if4NMIDl8kuQCfepuU uOLGdvzpJlDdSh1SEKnH7PU= =LUcl -----END PGP SIGNATURE----- --sm4nu43k4a2Rpi4c-- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-chat" in the body of the message