SCA SCSI hard drive performace?

chrisfrog

Member
Oct 15, 2001
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do the sca 80pin hard drives decrease performance at all when using a 80pin -> 68pin adapter??

just kinda curious, they got some cheap drives for sale on ebay...

SEAGATE 36.4GB 10,000 RPM Cheetah Ultra2 LVD 80 Pin SCA SCSI Hard Drive (ST136403LC)


$159
 

GoSharks

Diamond Member
Nov 29, 1999
3,057
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76
nope, they are of exact same performance as long as you get a lvd convertor as opposed to a UW convertor.
 

dkozloski

Diamond Member
Oct 9, 1999
3,005
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76
When properly installed and configured there is absolutely no difference in performance, longevity or any other parameter between SCA and 68 pin drives of the same model.
 

kjmcdonald

Member
Dec 6, 2001
103
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SCA != LVD

You can have both together, but you can also get SCA on either single ended or regular
differential SCSI.

SCA is just a different type of 68pin wide SCSI connector. The extra 12 pins carry the power
and drive ID assignment. on a SCA drive, the SCA connector is the only connector.
On a 68 pin drive you have a separate power connector, and you usually have jumpers to
set the SCSI ID. SCA was developed for hot pluggable drives.

-Kyle