formatting MFM drives on a IBM PC

Geoffrey Oltmans oltmansg at gmail.com
Thu Sep 28 09:21:56 CDT 2017


On Wed, Sep 27, 2017 at 11:16 AM, allison via cctalk <cctalk at classiccmp.org>
wrote:

>
>>
> IDE disks format usually meant high level only.  SCSI could be either
> depnding on the specific controller and media.
>
>
Seems like the omission of low level formatting of IDE drives had more to
do with preserving the servo track data, (and maybe aforementioned
firmware/bad sector data) yes? Were any earlier MFM/RLL voice coil/servo
controlled, or were they all stepper drives?


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