Skip site navigation (1)Skip section navigation (2)
Date:      Wed, 12 Jan 2000 13:41:58 -0500 (EST)
From:      Andrew Gallatin <gallatin@cs.duke.edu>
To:        mjacob@feral.com
Cc:        freebsd-scsi@FreeBSD.ORG
Subject:   Re: 68 <-> 80 pin SCSI converter
Message-ID:  <14460.51878.772844.467809@grasshopper.cs.duke.edu>
In-Reply-To: <Pine.BSF.4.05.10001120718240.92347-100000@semuta.feral.com>
References:  <14460.38703.454117.921172@grasshopper.cs.duke.edu> <Pine.BSF.4.05.10001120718240.92347-100000@semuta.feral.com>

next in thread | previous in thread | raw e-mail | index | archive | help

Matthew Jacob writes:
 > 
 > > 
 > > I apologize for what may be a fairly silly question: Is there any
 > > clean way to attach a 68-pin drive to an 80-pin SCA backplane?
 > > 
 > > My group is purchasing a server-class box which comes with an U2
 > > hot-pluggable backplane with 80-pin SCA connectors.  We are hoping
 > > to reuse some existing 68-pin U2 cheetahs from another machine.
 > > 
 > > I have looked for 68-80 pin converters for a while & all I can find
 > > are adapters which allow you to attach an 80-pin SCA drive to a 68-pin 
 > > cable.  I have not found any method for attaching a 68-pin drive to an 
 > > 80-pin SCA backplane.  Does such a best exist?
 > 
 > I'd try http://www.amp.com to get a part no, if it exists, and then search
 > around for someone who'll sell it. I'd also check Kingston- the folks who
 > make slide rail carriers may have this.
 > 
 > I'd doubt that this is a great idea because the whole point of SCA is it
 > combines signal power and mounting in one deal- to go form SCA, you'll
 > have to come out with both the MOLEX +5/+12 connector, the 68 pin cable
 > connector, and it won't necessarily have the right mounting and any length
 > of 68 pin longer than 50mm is gonna add signal noise.
 > 

OK, I haven't been able to find any connectors & your argument against
doing it even if it were possible sounds valid.  I'll see if I can get
the powers that be to purchase new drives too.

Thanks for the help,

Drew


To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-scsi" in the body of the message




Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?14460.51878.772844.467809>