On Wed, Oct 02, 2002 at 07:53:27PM -0700, Long, Scott wrote: > > > > The aic 7890/91 is a dual 160 MB controller. > > No, the 7890/91 is 80MB/s max.
The Tyan S2462UNG has an aic-7899w. > > > Adaptec's > > documentation expliciely states that the bus speed is the > > rate of the _slowest_ device on the channel. > > No it does not. Well, the whole bus will switch to SE-speed if a SE-device is connected, guess that's what he meant. > > > Did you try > > placing the cd on the B channel or vice-versa? Tyan, in > > their 2642 SMP manual, recommends that the faster (and > > boot) drives be placed on the B bus. > > I can't imagine why it would say this. Can you provide a > reference? > Me neither but my 2642 additionally only boots from channel B. The manual is available at: ftp://ftp.tyan.com/manuals/thunder/m_s2462_100.pdf He was refering to: "You can connect Ultra160 and Ultra2 SCSI devices to the 68-pin Low Voltage Differential/Single-Ended (LVD/SE) connectors on both SCSI channels. Or you can operate the newer Ultra160 and Ultra2 devices at their maximum speed on Channel B while at the same time using legacy SCSI devices on Channel A." (page 47) To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-current" in the body of the message
