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Info - definition of different types of scsi

Posted on 2006-06-04
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Last Modified: 2011-09-20
Having recently suffered a hard disk fault, I would like to know more about
SCSI cards and drives before I buy a replacement. I need a recommendation
and some info...

I have adaptec 2940UW + 2x 36GB UW scsi hard disks + 2x scsi ultra cdrom drives.

It seems hard to find a replacement old UW hard disk on Ebay and I can't afford to
buy any new scsi drives. But I saw some Ultra 160 and 320 drives for sale and also
some adaptec cards.

What is the difference in connectors between the drives I have and those Ultra3
drives (what does 160 and 320 mean). Do I need special cables for those drives
and would they work off my 2940UW card or would I need to buy some other
scsi controller card?
What is the cheapest option going to be?
Thanks for any advice!  (don't feel you need to answer all these questions in order
for me to accept an answer.
Cheers!
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Question by:kcs_tec
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garycase earned 1000 total points
ID: 16828264
The key is to have the correct connections -- here are some pictures of the various types of connectors, and a summary of the transfer specifications:  http://www.ramelectronics.net/html/scsi_connecters.html
... and a discussion of how to mix connections:  http://www.ramelectronics.net/html/scsi_help.html

Note that your controller will work fine with modern drives - you just need the correct cable.

... however, since you asked for the "cheapest option" ==>  is there a compelling need to say with SCSI?   If not, you can buy a good add-in controller card (either IDE or SATA;  SATA is preferable but IDE is cheaper, both for the controller & the drives) and simply switch to ATA drives.


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by:kcs_tec
ID: 16828506
Thanks mate!  got all the info I need from those web pages.
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