14 Aug
2012
14 Aug
'12
12:58 p.m.
From: Dave McGuire
Sent: Tuesday, August 14, 2012 1:33 AM
On 08/14/2012 04:06 AM, TeoZ wrote:
> There was a brief hop to just differential SCSI
(higher voltage then
> LVD which is how LVD got its name). HVD and SE/LVD don't like each
> other while the other SCSI standards did with some tweeking.
This overlapped entirely with SE SCSI to the end,
though. HVD was
used in very high-end machines (Tandem and Cray come to mind) for the
better noise immunity for longer cable runs. It really wasn't a hop
from SE to HVD then to LVD.
Also the XKL Toad-1 System (4 x differential FASTWIDE SCSI-2 ports).
An absolute bear to find drives for.
Rich Alderson
Vintage Computing Sr. Systems Engineer
Vulcan, Inc.
505 5th Avenue S, Suite 900
Seattle, WA 98104
mailto:RichA at vulcan.com
mailto:RichA at LivingComputerMuseum.org
http://www.LivingComputerMuseum.org/