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From: Dave Horsfall <dave@horsfall.org>
To: The Eunuchs Hysterical Society <tuhs@tuhs.org>
Subject: Re: [TUHS] [simh]  2bsd tarball
Date: Wed, 12 Aug 2020 09:55:49 +1000 (EST)	[thread overview]
Message-ID: <alpine.BSF.2.21.9999.2008120942280.10877@aneurin.horsfall.org> (raw)
In-Reply-To: <2d723104-6461-08ba-9235-99b06622f9fa@softjar.se>

On Wed, 29 Jul 2020, Johnny Billquist wrote:

> However, seek times on DECtape aren't really comparable to magtape 
> either. Because DECtape deals with absolute block numbers. So you can 
> always, no matter where you are, find out where you are, and how far you 
> will need to move to get to the correct block.
> 
> With magtapes, this is pretty much impossible. You'll have to rewind, 
> and then start seeking.

Not if you used 512-byte blocks, and mounted it read-only; that way, you 
could use it as a file system (and I did, just for fun).  Oh, you also 
needed a clever tape driver, of course.  And the IRG was a bit of a 
problem, chewing up a lot of tape space.

I posted this here a while back, and some idiot (his name is not
important) practically called me a liar, until he was handed his arse
on a plate by someone else with better knowledge than him.

-- Dave

  reply	other threads:[~2020-08-11 23:56 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-28 23:03 [TUHS] " Will Senn
2020-07-29  0:09 ` Warner Losh
2020-07-29  0:19   ` Clem Cole
2020-07-29  0:45   ` Will Senn
2020-07-29  0:46   ` Will Senn
2020-07-29  0:21 ` Clem Cole
2020-07-29  9:50   ` [TUHS] [simh] " Johnny Billquist
2020-07-29 13:52     ` John Cowan
2020-07-29 14:30       ` Johnny Billquist
2020-08-11 23:41       ` Dave Horsfall
     [not found]     ` <5A12E0BB-4FFF-4C3E-B486-D4E852FAA97F@comcast.net>
2020-07-29 14:29       ` Johnny Billquist
2020-08-11 23:55         ` Dave Horsfall [this message]
2020-07-29 13:42   ` [TUHS] 2bsd tarball -> pdtar, with a side of uuslave John Gilmore
2020-07-29 15:40     ` Clem Cole
2020-07-29 19:34       ` Richard Salz
2020-07-29 19:42         ` Warner Losh

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