formatting MFM drives on a IBM PC

Al Kossow aek at
Thu Sep 28 09:34:24 CDT 2017

On 9/28/17 7:21 AM, Geoffrey Oltmans via cctalk wrote:
> Were any earlier MFM/RLL voice coil/servo
> controlled, or were they all stepper drives?

Most drives 40mb and up are closed-loop with dedicated
servo surfaces and many have servos that don't work any more.

Maxtor and Atasi are early examples of embedded servo drives.
You can tell if a drive is embedded or dedicated by the number
of heads, odd if dedicated, even if embedded.

More information about the cctalk mailing list