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Unpopular Scsi Interface

Discussion in 'A+' started by st giles, Sep 4, 2005.

  1. st giles

    st giles Nibble Poster

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    Hi,
    Have been busy getting my lab equipment together as i start studying A+ tomorrow. I don't know if anyone has had the same trouble but trying to get hold of a external scsi device is a nightmare. There's hardly any on ebay and i went to a computer fair today and was told they dont bother getting them in as nobody wants to buy scsi. Why is this interface so unpopular?. Also can u mix scsi 2 devices with scsi 3?. Also let me say a big well done to all the recent A+ passes out there :clap
     
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  2. simongrahamuk
    Honorary Member

    simongrahamuk Hmmmmmmm?

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    From knowledge (and it's been a while) I think that scsi 2 and scsi 3 have different connectors.

    This type of connection is not unpopular, the vast majority of servers use scsi, as it is a faster interface than IDE and can support more devices connected to it.

    8)
     
  3. Phoenix
    Honorary Member

    Phoenix 53656e696f7220 4d6f64

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    its not that its unpopular, its that its rather specialist when it comes to home equipment
    you can get external SCSI backup devices (infact most ARE scsi) as well as external scanners and the like

    internal is generally limited to 68pin LVD HDDs but you can get old 50 pin CDRom drives too

    i believe they are backward compatable, IE SCSI 3 will work on SCSI2 with limitations
    but SCSI 2 wont work on SCSI 3, but i could be totally off on this, my experiance of external SCSI stuff is limited to my Ultrium drive :)

    Edit: Simon could be right on the different connector, making my last paragraph utter crap :)
    ill do some scoping out

    Could of been the case, I was refurring to Ultra-2 and Ultra-3 :)

     
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  4. st giles

    st giles Nibble Poster

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    By different connectors, do you mean either 50pin and 68 pin etc.
    What are the main differences of scsi2 and scsi3?
    :blink
     
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  5. st giles

    st giles Nibble Poster

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    Cheers chaps. Got a better idea now. :respct
     
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  6. simongrahamuk
    Honorary Member

    simongrahamuk Hmmmmmmm?

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    That's exactly what I mean, but like I said it's been a while all of my new stuff uses SATA and not SCSI, so I haven't had any reason to keep upto date with it.

    As for the differences see phoenix's edited post.

    8)
     

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