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Re: Bad Hitachi disk.... how so from a pic?

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On 12/09/2014 05:35 PM, Scott Alfter wrote:
> In article <m63ulf$lhv$1@dont-email.me>,
> Aragorn  <thorongil@telenet.be.invalid> wrote:
>> No, not the controller.  That which is integrated into the drive are the
>> most elementary drive electronics ─ voltage regulators and such ─ which
>> is not the same thing as an actual disk controller.  For that matter,
>> SCSI disks are IDE disks too, and yet they require a separate controller
>> ─ whether installed on the motherboard or on a plug-in adapter card.
>
> There's quite a bit more integration in modern (and many not-so-modern)
> drives than you're letting on.  There was enough logic built into the drive
> that ISA IDE controllers were often little more than some bus transceivers
> and a very small amount of glue logic.  Consider this one, for instance:
>
> https://ancientelectronics.files.wordpress.com/2012/11/wang3.jpg
>
> It's fuzzy, but it looks like the only active components are some 74LS245s
> (or '244s?) and a smallish programmable-logic device.  The intention with
> IDE was to provide a nearly direct connection between the ISA bus and a hard
> drive.
>
>    _/_
>   / v \ Scott Alfter (remove the obvious to send mail)
> (IIGS( https://alfter.us/           Top-posting!
>   \_^_/                              >What's the most annoying thing on Usenet?
>



That item in the photo is not a true IDE controller, it's one of those 
"sound card" controllers often used in 486's

The very first time I installed Linux (Red Hat 5.2) it was on a 486 that 
had one of those controllers. I was surprised that it was even supported 
by Linux.

The performance was quite terrible, but I did get a "command line" 
install functioning.

BTW: That drive was so slow that an installation of Win95 that I tried 
first to install from CD never completed even after running all night.
I later installed Win95 from floppies and it wend much faster.

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Bad Hitachi disk.... how so from a pic? Jax <remove.bear.bottoms1@gmail.com> - 2014-12-06 14:44 +0000
  Re: Bad Hitachi disk.... how so from a pic? philo  <philo@privacy.net> - 2014-12-06 09:44 -0600
    Re: Bad Hitachi disk.... how so from a pic? notbob <notbob@nothome.com> - 2014-12-06 19:37 +0000
      Re: Bad Hitachi disk.... how so from a pic? philo  <philo@privacy.net> - 2014-12-06 14:54 -0600
      Re: Bad Hitachi disk.... how so from a pic? Jax <remove.bear.bottoms1@gmail.com> - 2014-12-06 22:50 +0000
        Re: Bad Hitachi disk.... how so from a pic? notbob <notbob@nothome.com> - 2014-12-06 23:13 +0000
      Re: Bad Hitachi disk.... how so from a pic? philo  <philo@privacy.net> - 2014-12-07 04:57 -0600
        Re: Bad Hitachi disk.... how so from a pic? Aragorn <thorongil@telenet.be.invalid> - 2014-12-07 16:52 +0100
          Re: Bad Hitachi disk.... how so from a pic? philo  <philo@privacy.net> - 2014-12-07 09:59 -0600
            Re: Bad Hitachi disk.... how so from a pic? Aragorn <thorongil@telenet.be.invalid> - 2014-12-07 17:10 +0100
              Re: Bad Hitachi disk.... how so from a pic? philo  <philo@privacy.net> - 2014-12-07 10:48 -0600
                Re: Bad Hitachi disk.... how so from a pic? Aragorn <thorongil@telenet.be.invalid> - 2014-12-07 18:37 +0100
                Re: Bad Hitachi disk.... how so from a pic? philo  <philo@privacy.net> - 2014-12-07 12:28 -0600
                Re: Bad Hitachi disk.... how so from a pic? Pascal Hambourg <boite-a-spam@plouf.fr.eu.org> - 2014-12-07 21:46 +0100
                Re: Bad Hitachi disk.... how so from a pic? Aragorn <thorongil@telenet.be.invalid> - 2014-12-07 22:27 +0100
                Re: Bad Hitachi disk.... how so from a pic? Pascal Hambourg <boite-a-spam@plouf.fr.eu.org> - 2014-12-08 00:36 +0100
                Re: Bad Hitachi disk.... how so from a pic? Richard Kettlewell <rjk@greenend.org.uk> - 2014-12-08 09:26 +0000
                Re: Bad Hitachi disk.... how so from a pic? Aragorn <thorongil@telenet.be.invalid> - 2014-12-08 11:31 +0100
                Re: Bad Hitachi disk.... how so from a pic? Richard Kettlewell <rjk@greenend.org.uk> - 2014-12-08 10:53 +0000
                Re: Bad Hitachi disk.... how so from a pic? Aragorn <thorongil@telenet.be.invalid> - 2014-12-08 17:48 +0100
                Re: Bad Hitachi disk.... how so from a pic? Richard Kettlewell <rjk@greenend.org.uk> - 2014-12-08 17:28 +0000
                Re: Bad Hitachi disk.... how so from a pic? Robert Nichols <SEE_SIGNATURE@localhost.localdomain.invalid> - 2014-12-08 08:43 -0600
                Re: Bad Hitachi disk.... how so from a pic? Pascal Hambourg <boite-a-spam@plouf.fr.eu.org> - 2014-12-09 11:02 +0100
                Re: Bad Hitachi disk.... how so from a pic? scott@alfter.diespammersdie.us (Scott Alfter) - 2014-12-09 23:35 +0000
                Re: Bad Hitachi disk.... how so from a pic? philo  <philo@privacy.net> - 2014-12-09 17:43 -0600
                Re: Bad Hitachi disk.... how so from a pic? philo  <philo@privacy.net> - 2014-12-09 17:54 -0600
                Re: Bad Hitachi disk.... how so from a pic? scott@alfter.diespammersdie.us (Scott Alfter) - 2014-12-10 20:22 +0000
                Re: Bad Hitachi disk.... how so from a pic? scott@alfter.diespammersdie.us (Scott Alfter) - 2014-12-10 20:27 +0000
                Re: Bad Hitachi disk.... how so from a pic? philo  <philo@privacy.net> - 2014-12-10 16:40 -0600
                Re: Bad Hitachi disk.... how so from a pic? Thomas Richter <thor@math.tu-berlin.de> - 2014-12-10 11:06 +0100
  Re: Bad Hitachi disk.... how so from a pic? Baho Utot <baho-utot@invalid.com> - 2014-12-06 13:39 -0500
    Re: Bad Hitachi disk.... how so from a pic? Jax <remove.bear.bottoms1@gmail.com> - 2014-12-06 22:51 +0000
  Re: Bad Hitachi disk.... how so from a pic? Johnny <johnny@invalid.net> - 2014-12-06 13:02 -0600
  Re: Bad Hitachi disk.... how so from a pic? Keith Keller <kkeller-usenet@wombat.san-francisco.ca.us> - 2014-12-06 16:04 -0800

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