From owner-freebsd-scsi Wed Feb 3 12:49:33 1999 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id MAA19789 for freebsd-scsi-outgoing; Wed, 3 Feb 1999 12:49:33 -0800 (PST) (envelope-from owner-freebsd-scsi@FreeBSD.ORG) Received: from dingo.cdrom.com (castles240.castles.com [208.214.165.240]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id MAA19777 for ; Wed, 3 Feb 1999 12:49:28 -0800 (PST) (envelope-from mike@dingo.cdrom.com) Received: from dingo.cdrom.com (localhost [127.0.0.1]) by dingo.cdrom.com (8.9.1/8.8.8) with ESMTP id MAA08894; Wed, 3 Feb 1999 12:45:27 -0800 (PST) (envelope-from mike@dingo.cdrom.com) Message-Id: <199902032045.MAA08894@dingo.cdrom.com> X-Mailer: exmh version 2.0.2 2/24/98 To: Joerg Wunsch cc: freebsd-scsi@FreeBSD.ORG Subject: Re: SCSI Tape Drives... In-reply-to: Your message of "Wed, 03 Feb 1999 21:01:28 +0100." <19990203210128.25194@uriah.heep.sax.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Wed, 03 Feb 1999 12:45:27 -0800 From: Mike Smith Sender: owner-freebsd-scsi@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org > As Wilko Bulte wrote: > > > Exabytes (primarily the earlier ones) are consumer-electronics based > > cr* > > Sounds like our drives are from those series. > > > Hmmm. You better do a couple of retension wind/rewinds every now and > > then. Really helps to keep QIC cartridges happy. > > In the end, they're retensioning regularly, i guess. I do a full > backup of three partitions each weekend, starting at BOT, rewind it, > append daily increments throughout the week, rewind again, etc. The > full backups itself should suffice to wind the tape several times from > end to end. Note that I've seen QIC tapes fail fairly rapidly if not stored fully rewound; the tension pulls the tape over the index holes and causes the layer or two immediately above the holes to deform, making several sets of tracks unreadable at that point. Aside from that, I tend to concur; if you want the data to last any length of time, 9-track or QIC is about the best you'll manage. -- \\ Sometimes you're ahead, \\ Mike Smith \\ sometimes you're behind. \\ mike@smith.net.au \\ The race is long, and in the \\ msmith@freebsd.org \\ end it's only with yourself. \\ msmith@cdrom.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message