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Date:      Thu, 08 Oct 1998 01:08:46 -0700
From:      Mike Smith <mike@smith.net.au>
To:        Marius Bendiksen <Marius.Bendiksen@scancall.no>
Cc:        Kevin Day <toasty@home.dragondata.com>, freebsd-current@FreeBSD.ORG
Subject:   Re: CDROM as system disk 
Message-ID:  <199810080808.BAA02150@dingo.cdrom.com>
In-Reply-To: Your message of "Thu, 08 Oct 1998 08:51:14 %2B0200." <3.0.5.32.19981008085114.0091f220@mail.scancall.no> 

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> >Depending on if your delays between seeks are enough time for the drive to
> >spin down or not are a big factor. (spin down/spin up/seek/read is nasty)
> 
> How much work would it take to tweak the CDROM driver to wait 5-15 minutes
> (or, perhaps add an option somewhere, to make it dynamically configurable)
> before spinning down? I think that would solve some of the problem.

It's determined by the drive, not the driver.  None of our drivers 
spin the CDROM down intentionally.

Many drives don't offer any standard way of disabling the spindown; 
you're basically stuck with it.

-- 
\\  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



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