Date: Tue, 16 Aug 2005 13:47:41 -0500 From: Nikolas Britton <nikolas.britton@gmail.com> To: Dick Hoogendijk <dick@nagual.st> Cc: freebsd-questions <freebsd-questions@freebsd.org> Subject: Re: atacontrol Message-ID: <ef10de9a05081611474f0d9a30@mail.gmail.com> In-Reply-To: <20050816082409.GA45012@lothlorien.nagual.st> References: <20050816082409.GA45012@lothlorien.nagual.st>
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On 8/16/05, Dick Hoogendijk <dick@nagual.st> wrote: > I have a simple question. Some time ago I was told always to use the > same type of harddisk transfers. Now I have i.e.: >=20 > Master =3D UDMA100 > Slave =3D UDMA66 >=20 > Does this mean the first disk really works on UDMA100 or is is delayed > by the second one (as I was told some time ago). >=20 > Or is the fbsd ata controller capable of setting each drive to its > right speed? AFAIK everything slows down. This is a hardware problem and FreeBSD can do nothing about it. This is why I only put one device on a controller/channel, I also do it because the controller can only talk to one device at a time.
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