Subject: Re: wedges and DEV_BSIZE (Was Re: removing VOPs)
To: SODA Noriyuki <firstname.lastname@example.org>
From: Jason Thorpe <email@example.com>
Date: 10/10/2005 10:47:28
On Oct 10, 2005, at 10:09 AM, SODA Noriyuki wrote:
>>>>>> On Mon, 10 Oct 2005 09:21:52 -0700, Chuck Silvers
>>>>>> <firstname.lastname@example.org> said:
>> all of the devices that I know of with such restrictions on
>> writing have
>> a sector size of 512 bytes or larger, so this isn't an issue in
> Well, some older pc98 uses 256bytes/sector.
> Of course, currently pc98 isn't supported by NetBSD, though...
Older HP-IB drives also had 256 bytes/sector. The hp300 port's rd(4)
driver does all of the necessary fiddling. It only matters if you
have file systems laid down on the disk that don't have 512-byte
alignment, which I have never encountered in the wild.