The Unix Heritage Society mailing list
 help / color / mirror / Atom feed
From: wb@freebie.xs4all.nl (Wilko Bulte)
Subject: [TUHS] Irwin 285
Date: Thu, 21 Jan 2010 12:32:13 +0100	[thread overview]
Message-ID: <20100121113213.GB14623@freebie.xs4all.nl> (raw)
In-Reply-To: <20100121121917.eb90e950.jkunz@unixag-kl.fh-kl.de>

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain, Size: 1479 bytes --]

Quoting Jochen Kunz, who wrote on Thu, Jan 21, 2010 at 12:19:17PM +0100 ..
> On Thu, 21 Jan 2010 13:26:39 +0300
> Sergey Lapin <slapinid at gmail.com> wrote:
> 
> > And I've got a strange device I've seen nowhere else - floppy-attached
> > tape drive, labelled Irwin, model 285.
> [...]
> > Also - how wide these devices were used? I've never met one before
> > while I can't say I have little IT experience.
> Floppy tapes where quite common consumer grade (i.e. cheap crap) backup
> drives in the early 90'is. They just mimic a floppy drive to the
> controler. But you need special software to actually use the drive.
> They don't work like a big floppy.
> 
> Don't waste your time with this crap. Floppy streamers are sslllooowww
> and unreliable. They are limited to the data rate of a floppy drive,
> IIRC 500 kBit/s max. and the tapes need to be formated before use. They
> have no "read after write" verify. So you need an extra verify run
> after the backup was written. I.e. you need to run the whole tape three
> times through the drive. This can take up to several hours.
> 
> The only reason to resurrect one of these drives is to read old tapes
> with important data that would be lost otherwise.

Exactly.  Even at the best of times this was basically junk, these
days it is probably worse than junk.  "SperrmÃŒll" ;-)

Wilko
_______________________________________________
TUHS mailing list
TUHS at minnie.tuhs.org
https://minnie.tuhs.org/mailman/listinfo/tuhs


  reply	other threads:[~2010-01-21 11:32 UTC|newest]

Thread overview: 64+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-01-21 10:26 Sergey Lapin
2010-01-21 10:51 ` Brantley Coile
2010-01-21 11:19 ` Jochen Kunz
2010-01-21 11:32   ` Wilko Bulte [this message]
2010-01-21 12:07     ` Sergey Lapin
2010-01-21 12:37       ` Jason Stevens
2010-01-21 13:02         ` Wilko Bulte
2010-01-21 16:50           ` Jochen Kunz
2010-01-21 17:11       ` Jochen Kunz
2010-01-21 17:37         ` M. Warner Losh
2010-01-21 17:41         ` Sergey Lapin
2010-01-21 19:00           ` Jochen Kunz
2010-01-21 19:10             ` Al Kossow
2010-01-21 19:36               ` Jochen Kunz
2010-01-21 19:41               ` Wilko Bulte
2010-01-21 19:45             ` John Cowan
2010-01-21 18:59         ` Wilko Bulte
2010-01-21 19:48           ` Jochen Kunz
2010-01-21 19:56             ` Wilko Bulte
2010-01-21 19:58               ` Larry McVoy
2010-01-21 20:00                 ` Wilko Bulte
2010-01-21 20:11                   ` Larry McVoy
2010-01-21 20:26                     ` Jason Stevens
2010-01-21 20:41                       ` Wilko Bulte
2010-01-21 20:44                         ` Larry McVoy
2010-01-21 21:00                           ` Wilko Bulte
2010-01-21 21:01                             ` Larry McVoy
2010-01-21 21:36                               ` lyricalnanoha
2010-01-21 22:15                                 ` Larry McVoy
2010-01-21 22:22                                   ` M. Warner Losh
2010-01-22  9:14                           ` Jochen Kunz
2010-01-22  9:34                             ` Wilko Bulte
2010-01-22 10:15                               ` Jochen Kunz
2010-01-22 10:46                                 ` Wilko Bulte
2010-01-22 11:06                                   ` Jochen Kunz
2010-01-22 11:12                                     ` Wilko Bulte
2010-01-22 15:38                                 ` Larry McVoy
2010-01-22 16:52                                   ` Jochen Kunz
2010-01-22 16:55                                   ` Wilko Bulte
2010-01-21 20:46                         ` Jason Stevens
2010-01-21 22:15                         ` Aaron J. Grier
2010-01-21 22:57                           ` Wilko Bulte
2010-01-21 20:36                     ` Wilko Bulte
2010-01-21 20:44                       ` Corey Lindsly
2010-01-21 21:45                         ` Wilko Bulte
2010-01-22  0:36                         ` [TUHS] Backup software (was: Irwin 285) Greg 'groggy' Lehey
2010-01-22  0:48                           ` Jason Stevens
2010-01-28 20:27                           ` Brad Spencer
2010-02-12 17:03                             ` Tim Bradshaw
2010-02-15  1:19                             ` [TUHS] dump(8) compatibility (was: Backup software (was: Irwin 285)) Greg 'groggy' Lehey
2010-02-15  1:24                               ` Jason Stevens
2010-02-15  1:30                               ` [TUHS] dump(8) compatibility M. Warner Losh
2010-02-15  2:27                                 ` Larry McVoy
2010-02-15  5:05                                   ` Warner Losh
2010-02-15  5:18                                     ` Jason Stevens
2010-01-21 20:33                   ` [TUHS] Irwin 285 Jochen Kunz
2010-01-21 20:44                     ` Wilko Bulte
2010-01-21 20:47                       ` Larry McVoy
2010-01-22  9:23                       ` Jochen Kunz
2010-01-22  9:32                         ` Wilko Bulte
2010-01-22  0:38                 ` [TUHS] Tape backups? (was: Irwin 285) Greg 'groggy' Lehey
2010-01-21 20:18               ` [TUHS] Irwin 285 Jochen Kunz
2010-01-21 12:05 ` Andrzej Popielewicz
2010-01-21 12:12   ` Sergey Lapin

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20100121113213.GB14623@freebie.xs4all.nl \
    --to=wb@freebie.xs4all.nl \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).