Subject: Re: Supporting sector size != DEV_BSIZE
To: Wojciech Puchar <wojtek@wojtek.3miasto.net>
From: Ignatios Souvatzis <ignatios@theory.cs.uni-bonn.de>
List: tech-kern
Date: 10/11/2001 12:06:45
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On Thu, Oct 11, 2001 at 11:55:41AM +0200, Wojciech Puchar wrote:
> >
> > Not every scsi disk does support this at all nowadays - remember, you need
> > a couple levels of forward error correction and n-out-of-m-bit encodings to
> > see any meaningful data with modern bit densities, so the user-visible block
> > size is probably fixed.
> >
> > But some media are != 512 - some MO use 1024 bytes, some 2048 bytes.
> > CD in data mode also uses 2048 bytes.
> >
> how is it handled with CD's on non-current netbsd?

"Not". For the cd9660 file system, this is handled fine due to some magic
I never looked at, but for ffs it is probably not handled.

I think ADOSFS works for 2048-byte-sectors, too.

Regards,
	-is

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