SCSI Hardware

[Starren, Erick X (NRSW N92R63)]

The tape drive may have a terminator on it.  The drive's documentation will
usually tell you whatever you need to know about terminating it.  

External SCSI drives commonly have two connectors.  One in, one out.  The
terminator in this case is a plug that goes in the "out" socket of the last
device in the chain.  Where you only have one device, that's the one.

The SCSI setup operates at such high speed that an exposed (un-terminated)
"end" of a cable or chain of cabling severely impairs the electrical
performance of the chain.  Termination ensures clean, strong signals.

If you really need a terminator, you buy them at the same places you buy
SCSI cables.  Again, the drive's documentation will usually tell you what
you need.  Failing that, take the drive to a place the sells lots of
SCSI-grade cables and show it to them.  They will sell you the correct
terminator.

Erick Starren
San Diego

-----Original Message-----
From: Darrel Lawrence [mailto:darrel at coma.ucsd.edu]
Sent: Wednesday, March 13, 2002 2:08 PM
To: kplug-list at kernel-panic.org
Subject: SCSI Hardware


I'm looking to add a SCSI DDS-3 Tape Drive to
a RH 7.2 system I have.  I'm entirely new to the
world of SCSI devices.  I think I've decided on
a controller card (Adaptec 2930 Ultra).  The DDS3 drive 
is external, so I'll need to buy an external cable, but 
will I also need to buy a terminator?  If I do, will
he travel back in time and kill my mother to prevent
me from being born?  I'm asking because I don't see
them listed as accessories to any of the devices I've
looked at, I can't find them on the adaptec site at all,
and they don't appear to come with the card.

-Darrel

-- 
An investment in knowledge pays the best interest.  
     - Benjamin Franklin

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