Hello!

Thanks to Jochen and Kees for your useful links.  It seems
likely that I still have many of these old MFM drives in
an attic in Wales - they'll make interesting carry-on
luggage next time I visit there!

It looks as though the RD3x were 5.25" half-hight drives,
which might leave room for another device (perhaps a
larger, faster SCSI drive).  I'm wondering whether an MFM
drive could be just large enough to boot a kernel, and then
powered down once the machine was properly up.  What are
people's thoughts on this?

Regards,
  - Andy Ball

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                                               Watts
DEC   Equivalent        Cyl  Hd Spt Spc  Mb   Max  Typ
RD31  Seagate ST225      615  4 17   68   21   33   15
RD32  Seagate ST251-1

DEC   Equivalent        Cyl  Hd Spt Spc  Mb   Max  Typ
RD50  Seagate ST506      153  4 17   68    5   47   23
RD51  Seagate ST412      306  4 17   68   11   50   26
RD52  Quantum Q540       512  8 17  136   36
RD53  Micropolis 1325   1024  8 17  136   71   51   29
RD54  Maxtor XT2190     1224 15 17  255  160   64   27

           (all figures approximate or blatantly made up ;-)
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