By "Enclosures" are they referring to the things that drives sit in to allow
them to be hot pluggable (eg Sun RAID enclosures)?
I think you need the hardware notes for your controller.
I had to read mine about 3 or 4 times before it made sense (referring to a
home system).
You might want to download the service manual for your drive; once I did
that and read it, it all made a lot more sense.

Regards,

Jill.

-----Original Message-----
From: Andy Eager [mailto:[EMAIL PROTECTED] 
Sent: Thursday, 18 December 2003 9:11 PM
To: Slug list
Subject: [SLUG] SCSI termination and 80 pin devices


Hi all,

I've got an interesting question regarding SCSI bus termination and 
newer 80 pin devices.

I have:
 1 x Adaptec 2100S RAID controller
 2 x 36 GB 80 pin SCSI drives & hot-plug boxes.

I have done a lot with SCSI over the years, and it was my understanding 
that the SCSI bus must be terminated at both ends.  The controller 
(normally) handles one end and the other with either active or passive 
terminators. (on the disk or the bus)

I had some problems with the configuration and when querying Adaptec, 
they came back and said:

If you do have drive enclosures, note that you cannot use 
the Adaptec supplied cable with the card. This cable has terminating
resistor built-in and cannot be used on hard-drive enclosures. 
Basically, you do not want to use terminated cable under any 
circumstances if you have drive enclosures or back plane.

Anyone familiar with this?  Are drive enclosures 'auto terminating' now?

TIA

Andy



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