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Looking for SCSI SCA-40 to 68 pin adapter

Posted on 2001-06-02
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Last Modified: 2013-11-14
Hi !

Recently I?ve purchased a new Fujitsu 36.4 Gb MAF3363FC which has SCA-2 40 pin connection.

The functional specification (http://www.fujitsu-europe.com/home/product.asp?L=en&PID=1256867333&INFO=fsp
) states that my drive have Ultra2(LVD)SCSI/FC-AL. interface. I have very hard times to find any adapter from SCA-2 to 68-pin wide SCSI.

Does such an adapter exist? Where can I purchase it?
If not, how exactly (physically) can I connect my hard drive using Fibre Channel interface?
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Question by:alex_r
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Expert Comment

by:micro66
ID: 6149261
Is this what you're looking for:

http://www.oscaroscar.com/pp_SCA-806850.asp

Or maybe this one:

http://www.starmount.co.uk/sca_1.htm

Or you might go through this selection process:

http://www.scsi-cables.com/adaptersconverters.htm

And, this was found on the net for a similar drive question:

Seagate Technician's Response:

Fibre Channel devices require a specific Fibre Channel Host Bus Adapter (HBA) and will not work with a standard SCSI controller. Seagate drives are manufactured to a specific standard (FC, SCSI, ATA, MFM, etc.), not to a specific hardware platform. Contact your system manufacturer or vendor for information on Fibre Channel host adapters compatible with your specific configuration. Adaptec and DPT (www.adaptec.com, www.dpt.com) both make Fibre Channel controllers that can be used in a desktop system.

Fibre Channel drives are designed to be installed into a backplane enclosure with the appropriate 40-pin SCA connector. An adapter is necessary if you will be connecting a Fibre channel device directly to the controller instead of using an enclosure system. The appropriate adapter will convert the 40-pin SCA interface connector to a connection with discrete interface and power connectors.

CS Electronics (+1-949-475-9100) offers a "Fibre Channel Evaluation Kit" which contains the adapter and two drive interconnect cables. In addition to this kit, an external cable is needed to attach the adaptor to the Fibre channel HBA.

One evaluation kit is needed per drive, and one external cable per host adapter. Interconnections between drives on the loop are made with the cables furnished with the evaluation kit.
==================================
CS Electronics Fiber Channel products can be found at:

http://www.scsi-cables.com/line/fibre.htm

Hope all this helps.
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Expert Comment

by:oldgreyguy
ID: 6149297
to your question.......... SCA is not what this drive is.......... does it have a power connector on it.?
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Author Comment

by:alex_r
ID: 6149727
micro66: SCA-806850 is convertor from 80 pin (not from 40)

At http://www.scsi-cables.com/line/fibre.htm I have found
SCA40-to-DB9 and SCA40-to-PTP. It looks like SCA40-to-DB9 can be used for connection to Fibre Channel adapter (for which I don't like to spend so much many). The only question is why the hell the functional specification states that my drive have "Ultra2(LVD)SCSI/FC-AL" interface (see the link in the question).


oldgreyguy: Please read the question more carefully. My drive has SCA connection. It does NOT have power connector.
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Author Comment

by:alex_r
ID: 6149728
micro66: SCA-806850 is convertor from 80 pin (not from 40)

At http://www.scsi-cables.com/line/fibre.htm I have found
SCA40-to-DB9 and SCA40-to-PTP. It looks like SCA40-to-DB9 can be used for connection to Fibre Channel adapter (for which I don't like to spend so much many). The only question is why the hell the functional specification states that my drive have "Ultra2(LVD)SCSI/FC-AL" interface (see the link in the question).


oldgreyguy: Please read the question more carefully. My drive has SCA connection. It does NOT have power connector.
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Expert Comment

by:magarity
ID: 6153245
You shouldn't be able to find a converter for 68 SCSI2 to 40 LVD.  Almost all 68pin SCSI-2 devices are HVD (High Voltage Differential).  The drive you have is LVD (Low Voltage Differential) and requires a controller card that is capable of that.  You can't just convert from LVD to HVD and vice-versa with a simple in-line plug or cable with different end plugs like you could with 68pin to 50 to 25.  It has to do with the amount of power with which the data is transmitted.

Whoever recommended this drive should have found out what kind of controller you have before you bought it.  :(

I think you will need either a new controller that runs LVD devices or the exchange for the non-LVD model of this drive, if they make one.
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Accepted Solution

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ComTech earned 0 total points
ID: 6283737
Hi all,

This question has been open for awhile. I am going to allow feedback from the questioner and experts. If it is not resolved, I will delete or accept an answer based on the info I have been given. Experts, feel free to offer input. I will monitor this question for a period of 5-7 days and come back and evaluate the situation.

If an Expert has helped, please accept with the answer button.

If returned to I will leave open for discussion.

Please do NOT accept this notice as answer.

Thank you,
ComTech
Community Support Moderator
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Expert Comment

by:ComTech
ID: 6310842
Even though there was no response to my reminder, magartiy is tight on this Q.  I shall award the question, and PAQ this Question as it contains valuable information.

Thank you,
ComTech
Community Support Moderator
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Expert Comment

by:magarity
ID: 6325325
I remember actually researching this to find out about the LVD and HVD incompatibility so that information is correct...  did Comtech's reminder get accepted by accident?
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Author Comment

by:alex_r
ID: 6325481
Hmm ... It's really strange. I didn't look at this page for a while and it looks like somebody (NOT ME) accepted ComeTech comment as an answer to MY QUESTION. I think that micro66 was the closest. I would give him the points.
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Expert Comment

by:ComTech
ID: 6326533
Something to look into, I'e had reminders accepted before...which really irritates me.  I'm NOT  supposed o get points.

When I do an Accept ro delete, the points are ALWAYS 0'd out!

I'll have a look and see what happened.

Thanks,
ComTech
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