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Offline billchase

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Re: SCSI questions
« Reply #14 from previous page: January 27, 2004, 01:43:14 AM »
Can't help you with the Fibre channel drives, but I
can give you some info about the cyberstorm SCSI.
You need a 68pin scsi cable, and they don't have
to be expensive.  Twisted pair SCSI cables on the
other hand are expensive, so don't buy those.
Each end of the SCSI chain will need active
termination, with  the controller somewhere in the
middle.  If you use a 50 pin device at the end, make
sure your adapter has the upper 8bits terminated.
A typical SCSI chain will look like this:

A.TERM-----Controller-----Device-----Device----ETC.-----A.TERM

Try pricewatch or pricegrabber to check prices.
Here is a link for a cable on Newegg:
http://www.newegg.com/app/ViewProductDesc.asp?description=12-119-111&depa=1

C Snyder
 

Offline Sparky

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Re: SCSI questions
« Reply #15 on: January 27, 2004, 03:18:41 AM »
Hi there,

If they are Fibre Channel drives then just stick them back on e-bay and get some money back you won't find a converter to get them onto the SCSI bus.
You can put SCSI onto Fibre Channel with an expnsive SCSI-FC bridge but it won't go the other way.

Just to check, what does the connector look like on the rear of the drives, UW/LVD-SE SCSI is fairly easy to spot as it's a D shapped connected with 68way female connector (block with pin holes in it) there will also be the power connector, Fibre Channel is also D shaped but much smaller and looks more like a card -> slot arrangement and only about 20 connectors in there and no molex power connector.

When you do finally get a 68way SCSI disk connect it as follows :

Header 1 - Active terminator
|
Header 2 - CyberstormPPC
|
Header 3 - Hard drive
|
Header 4 or on hard disk - Active Terminator

Easy to do, don't fold the cable to much, don't go beyond 3 foot of cable.

Regards
 

Offline Wain

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Re: SCSI questions
« Reply #16 on: January 27, 2004, 03:44:42 AM »
Cyberstorm PPC doesn't have internal termination???
wierd.
Professional Expatriate
 

Offline Lo

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Re: SCSI questions
« Reply #17 on: January 27, 2004, 03:53:54 AM »
Quote
Cyberstorm PPC doesn't have internal termination??? weird


How is thiis for weird?  My GVP 030@50 has absolutely no termination for its HD.  There answer then was that the cable was so short as the HD  was mounted on the accelerator that the impedance was better off with no termination.   ~~Welcome to the SCSI world~~ :-o
[color=0000CC]GVP 060 @50 Pwr Twr [/color][color=FF0000]AMD_Amithlon_UAE[/color]
 

Offline zipper

Re: SCSI questions
« Reply #18 on: January 27, 2004, 07:32:33 AM »
> Cyberstorm PPC doesn't have internal termination???  wierd.
 

Not so.  Little space on the board and the price was high already.