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This forum is part of our mission to promote the preservation of vintage computers through education and outreach. (In real life we also run events and have a museum.) We encourage you to join us, participate, share your knowledge, and enjoy.

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Why do we have this policy? Sending a "PM Sent!" type message basically wastes everybody else's time by making them having to scroll past a post in a thread that looks to be updated, when the update is not meaningful. And the person you are sending the PM to will be notified by the forum software that they have a message waiting for them. Look up at the top near the right edge where it says 'Notifications' ... if you have a PM waiting, it will tell you there.

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Help With Hard Drive ( IBM Type 0665-30 )

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    Help With Hard Drive ( IBM Type 0665-30 )

    Hello, I'm New here.

    So my name is Rony

    i have IBM 5150 with monitor ( IBM 5151 monochrome ).

    and i have hard drive IBM Type 0665-30.

    I have an expansion card, I connected it to a hard disk and it recognizes it, but I can't tell how many cylinders it has, or how many heads.

    hare is pictures:
    https://imgur.com/a/iiR2Lcv

    #2
    See this previous discussion regarding this drive model:

    http://www.vcfed.org/forum/showthrea...rive-type-0665

    Comment


      #3
      Welcome to these forums.

      The large '2' on your 0665-30's defect sticker indicates that if the drive were to be fitted into an IBM AT, that drive type 2 is what would be set in the IBM AT's SETUP (a.k.a. 'CMOS setup').
      IBM drive type 2 equates to: 615 cylinders, 4 heads, 17 sectors per track

      Comment


        #4
        In regard to fitting hard drives into an IBM 5150, in case you are not already aware, be aware of the information at [here].

        Comment


          #5
          Originally posted by modem7 View Post
          Welcome to these forums.

          The large '2' on your 0665-30's defect sticker indicates that if the drive were to be fitted into an IBM AT, that drive type 2 is what would be set in the IBM AT's SETUP (a.k.a. 'CMOS setup').
          IBM drive type 2 equates to: 615 cylinders, 4 heads, 17 sectors per track
          Hello
          i need your help

          in diskpart

          i will do manual info

          have:

          ccc h rrr ppp ee o

          so i write:
          615 4 rrr?? ppp?? ee=11 o=5 ? what i need write in rrr and ppp ??

          rrr = starting reduced write cylinder
          ppp= write percomp cylinder

          please help to me.

          Comment


            #6
            Originally posted by TheKin988 View Post
            please help to me.
            The IBM 0665-30 (0665-030) will not need 'reduced write current', and so set the starting cylinder for 'reduced write current' to 615. Set the starting cylinder for write pecompensation to 300 (because the 0665-30 is an IBM type 2 drive).

            It is not clear to me what it is that you are doing. Diskpart is about partitioning, but 'ccc h rrr ppp ee o' is the format of a string used sometimes when low-level formatting using a Western Digital made hard drive controller (or some clones of).

            There are three things to do:
            Step 1 of 3: Do a low-level format of the drive. How that is done depends on the hard drive controller.
            Step 2 of 3: Create a partition. (e.g. Use FDISK.)
            Step 3 of 3: Do a high-level format of the partition, and make the partition bootable. (e.g. Use FORMAT.)

            For step 1, you need to tell us the make and model of the hard drive controller.

            An example of steps 2 and 3 is at [here].

            Comment

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