Am 19.04.2000 10:44:06 schrieb owner-linux-raid:
> [EMAIL PROTECTED] wrote:
> >
> > On Tue, 18 Apr 2000, Chris Mauritz wrote:
> >
> > > Also, make sure you have active (not passive) termination.
> >
> > Since I am no SCSI guru, can someone please explain, how to determine
> > which is active and which is passive?
> >
> > I went to the computer store, asked for a SCSI terminator and got it. It
> > has three little LEDs (one is POWER, one is LVD and the third is SE).
> > After I connected it to SCSI bus, POWER and LVD are on. Is this active or
> > passive?
> >
> > D.
> >
> > PS: I had instability issues with on-board AIC7xxx too. I think it could
> > have been a heat problem, so I'm going to glue a small cooler on the AIC
> > chip.
>
> LVD is Low Voltage Differential. SE is Single Ended. LVD is for the
> new U160 protocol, which I don't think the U2W supports. Change is to
> SE for this.
First of all Ultra 2 Scsi implies LVD. A device running with 80 MB/sec is
running LVD.
If you plug an Ultra Wide device in the same bus, the whole bus falls back to
UW
Single Ended at 40 MB/sec. So stick with LVD.
I have a ASUS P2BD-S Mainboard with 2 PIII/500 and 768 MB RAM, running
stock 2.2.14 with the B1 Raid patch and 2 IBM 9GB DNES-309170W disks running in
Raid-1
mode from the onboard AIC7xxx. There's another Adaptec 2944 Adapter in the
machine
(UW differential, connected to an EMC^2 disk array). I don't have SCSI- or
RAID-related
problems with the machine. Your problems sound like a cabling problem to me.
---
MfG, Klaus-Georg Adams
