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CDROM: SCSI vs ATAPI? - SCO

I'm in the process of building a new server to be used with 5.0.6a for a client. The system will use a SCSI tape drive and HD. What I'm curious about is if there is any benefit to also using a SCSI CD drive as they're getting more and more difficult to find. The office where the server will be located has a BIG issue with nasty oily dust that tends to kill off floppy drives and CD drives, so it would make more sense to use a cheaper and more readily available ATAPI CD drive unless there's a downside ...

  1. #1

    Default CDROM: SCSI vs ATAPI?


    I'm in the process of building a new server to be used with 5.0.6a for a
    client. The system will use a SCSI tape drive and HD. What I'm curious
    about is if there is any benefit to also using a SCSI CD drive as
    they're getting more and more difficult to find. The office where the
    server will be located has a BIG issue with nasty oily dust that tends
    to kill off floppy drives and CD drives, so it would make more sense to
    use a cheaper and more readily available ATAPI CD drive unless there's a
    downside to doing so.



    So what's the better option?

    1) track down a SCSI CD drive and not use IDE controller at all

    2) use a cheap and easy to find ATAPI CD drive



    Thanks,

    Chris Bethel

    Senior Network Engineer


    --
    Posted via http://dbforums.com
    bimmer95 Guest

  2. #2

    Default Re: CDROM: SCSI vs ATAPI?

    Chris Bethel wrote:
     

    I don't know of any evidence that SCSI CD-ROMs are better made than
    ATAPI ones. As you say, they're getting hard to find -- new ones are
    low-volume specialty items to their manufacturers; old ones are used or
    have been sitting somewhere collecting dust.

    What do they intend to do with this drive? If it's just for ISL and
    occasionally reading a supplement CD or transferring a bit of data, does
    it even need to be particularly reliable?

    One consideration: ATAPI CD writers do not yet work on OSR506 (that
    should be resolved when the pending "wd" BTLD ships, though). If they
    need a writer and need it right away, use SCSI.
     
    Bela Guest

  3. #3

    Default Re: CDROM: SCSI vs ATAPI?


    Originally posted by Bela Lubkin
     
     
     
     [/ref]



    The CDROM drive would only need to be able to read CDs for updates etc,
    so it wouldn't be used particularly often nor would it need to write
    CDs. That's why I'm leaning towards a simple ATAPI CDROM, but I'm
    definitely not a SCO expert, so I just wanted to make sure I wasn't
    overlooking something important.



    Thanks,

    Chris Bethel

    Senior Network Engineer


    --
    Posted via http://dbforums.com
    bimmer95 Guest

  4. #4

    Default Re: CDROM: SCSI vs ATAPI?

    You may not be able to find a SCSI CD drive. Most manufacturers have
    stopped making SCSI based CD drives. However, I did read once that Plextor
    came out with an SCSI to IDE converter unit. but I do not know how well that
    unit works.

    IDE CD drive are treated as SCSI units when you use the "wd" SCO drivers.
    Besides, they are affordable, so you "could" replace the unit more often.

    BTW: You may want to consider to build an enclosure for the server. Oily
    dust does not only kill off floppy and CD drives but is also not good for
    CPU/Case/Power Supply fans. Also, the motherboard would not like to be
    covered with this type of dust, especially if you would be using a P4/Xeon
    based motherboard.

    Yves


    "bimmer95" <com> wrote in message
    news:com... 


    Yves Guest

  5. #5

    Default Re: CDROM: SCSI vs ATAPI?

    In article <com> bimmer95 <com> writes:
    $I'm in the process of building a new server to be used with 5.0.6a for a
    $client. The system will use a SCSI tape drive and HD. What I'm curious
    $about is if there is any benefit to also using a SCSI CD drive as
    $they're getting more and more difficult to find.

    Most of the servers on which I've run OSR5 in the last several years
    have been either Compaq or Dell boxes, all with ATAPI CD-ROMs. No
    problems to report. My home and office machines (both currently
    running OSR5.0.5) both have ATAPI DVD-ROM/CD-RW combo drives;
    you can't burn with these (5.0.7 supports writing to both SCSI
    and ATAPI burners; previous versions only support writing to SCSI
    burners) but otherwise they work fine.

    There are some technical reasons why SCSI or ATAPI might
    theoretically be better in certain situations, but in the real
    world, for occasional use for loading software, I've wasted
    more time typing this paragraph (and I type quickly) than it's
    worth :-)

    Don't bother with a SCSI CD-ROM; get a cheap ATAPI drive.
    --
    Stephen M. Dunn <ca> [/ref][/ref]
    ------------------------------------------------------------------
    Say hi to my cat -- http://www.stevedunn.ca/photos/toby/
    Stephen Guest

  6. #6

    Default Re: CDROM: SCSI vs ATAPI?

    In article <com>,
    bimmer95 <com> wrote:
     

    This only addresses the dirty/oily environment.

    You should get a server style case that pulls in air through a
    filter. The standard design uses a fan that s air out so any
    opening in the case is a dirt inlet.

    I had one customer in a similar environment that solved the problem
    of dirt being ed into floppies and CD drives with a simple
    solution. They were an automotive repair shop and then just hung a
    clean shop rag on the computer so that it fell in front of the
    floppy and the CD. No more problems.

    The latter is cheaper, the former is best. With a pressurized
    case with a fan drawing air in through a filter clean air is n
    across the floppy and CD and >tape drive heads< and keeps those
    devices from getting dirty from air coming in.
     
     
     

    Filter the air and don't worry about it.

    Bill

    --
    Bill Vermillion - bv wjv . com
    Bill Guest

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