Joerg Johannes <[EMAIL PROTECTED]> writes: > Ramin Motakef wrote: > > > > Joerg Johannes <[EMAIL PROTECTED]> writes: > > > > > Hi List > > > > > > Has anybody of you a dual-channel SCSI-Controller working? > > > ..... > > > > > > thanks > > > > > > joerg > > > > > > > I've just installed a Dawicontrol DC-2980 U2W Controller, wich works > > just fine and is cheap (compared to adaptec...). I use only LVD > > Devices with this Controller, so can not comment on the dual-channel > > operation (i do not think this will cause problems) > > It is no real Dual-Channel-Controller. It only permits to use two > different cables for internal devices. As soon as you want to use an > external scanner, you can use only one cable for internal devices, so > you will slow down U2W-harddisks to Fast-SCSI because of the CD-Roms > (very bas, in this case I don't have to buy a new controller ;) ) > ......
Another possibility is to use an internal <-> external Adapter on the SE cable, but you have to be carefull about the max cable length. BTW, some scanners do not support scsi-disconnect and will stop the scsi bus while scanning (Mustek ie.) so a dedicated controller for the scanner might be a good idea anyway . Ramin