you don't need to jumpper the seagate cheetah lp scsi hard disk, it is auto-detected. According to seagate, you will see a burst if plug your u2w hard disk in u2w controller.
Lawrence Christopher Barry wrote: > > A lot of U2W disk drives can be jumpered to run in UW single ended mode, so > that they > can be run on a 2940UW or a 2940U2W without the U2W connecter working yet. I > should note > though that the cable that comes with U2W controllers (part # ACK-68I-U2W) > uses a > differential terminator and cannot be used to connect U2W drives to a 2940UW > or to the > UW connector on a 2940U2W and this is important because U2W drives being truly > differential, like SCA drives, come with no means to provide termination, > which must be > provided by the cable. I've just had some email with Adaptec and Seagate > about this > because I might buy a second generation Seagate Cheetah which is a lot faster > than the > first generation Cheetah but is only available with U2W or better interfaces, > and I see > no need to spend over $300 for a new motherboard or 2940U2W card when I'm > very happy > with my 2940UW. So I'm ordering the U2W Cheetah and Adaptec's actively > terminated UW > ribbon cable (ACK-W2W-5IT) and I'm set. > > I only bothered to write this because if you already have a U2W controller > you can run > U2W drives under Linux right now and you don't need to wait if you already > possess or > purchase an actively terminated UW cable and if you are interested in running > a U2W > drive without U2W SCSI you'll probably be able to so also without spending > extra cash > for an interface that provides 3-4 times more bandwidth you'll ever need > unless you have > a RAID. > > Markus Lechner wrote: > > > Hi Lawrence, > > > > I read on the kernel-list that the new boards run all except U2W - but > > they > > are working on it and it may soon be done. You can use the other > > SCSI-Parts up to UW-SCSI without any problems. You simply can't use the > > U2W-Part of your controller until they (the kernel and driver > > developers) > > get it done. I'm buying a new MB with U2W in a week, for example :) > > > > ok, > > > > Mac > > > > Lawrence wrote: > > > > > > Does the current adaptec driver support Adaptec 2940U2W (Ultra2 Wide) > > > scsi card? > > > > > > Lawrence > > > > > > -- > > > Unsubscribe? mail -s unsubscribe [EMAIL PROTECTED] < /dev/null > > > > -- > > Markus Lechner (Company - LightWolf) | The > > Prometheus-Project > > [EMAIL PROTECTED] | > > [EMAIL PROTECTED] > > http://home.munich.netsurf.de/Markus.Lechner | (only for > > Project-Team) > > PGP-Public-Key(s) are available | > > > > -- > > Unsubscribe? mail -s unsubscribe [EMAIL PROTECTED] < /dev/null > > -- Unsubscribe? mail -s unsubscribe [EMAIL PROTECTED] < /dev/null