• RobertYoung (7/16/2012)


    rmechaber (7/16/2012)


    You state:

    In addition there are more sectors in the outside tracks than there are in the innter [sic] tracks.

    My understanding of disk sectors has always been that the number of sectors per track is constant for a given disk, and that each sector stores the same amount of data as any other sector.

    Anyone confirm this?

    Rich

    That was true about a decade ago, or perhaps longer. For very many years, HDD have had variable geometry, with more sectors on outer tracks, since there's more there, there. http://en.wikipedia.org/wiki/Zone_bit_recording%5B/quote%5D

    Ah, thank you -- it's been that long or more since I've looked into disk storage geometry. The 'net has a memory: I found several authoritative-"looking" pages via Google supporting my (older) knowledge in a way that sounded current. Hence my request for some confirmation/elaboration.

    Without add'l sectors on outer tracks, the concept of short-stroking makes no sense, so I knew something was off.

    Thanks again,

    Rich