[rescue] Re: Drive Reliability (was SCSI drive for sale at buy.com)

Phil Stracchino alaric at caerllewys.net
Wed May 14 13:38:23 CDT 2003

On Wed, May 14, 2003 at 11:25:18AM -0400, Curtis H. Wilbar Jr. wrote:
> Got a stash of various MFM drives myself.  I've had MFM, ESDI, SCSI,
> and IDE drives... somehow missing RLL along the way :-) ).

If you have MFM, you didn't miss RLL.  :) MFM drives ARE RLL ....  it's
just that (if I remember the parameters correctly) drives sold as MFM
were actually RLL(2,5) while drive sold as RLL were RLL(3,7).  Seagate
reportedly tested all of their MFM drives at RLL(3,7) first, labelled
them as RLL if they passed, and as MFM if they didn't.

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