> With the Vaxstation, you need to know
> the answers to a series of questions it will ask you.  Someone 
> has posted examples for RD52, RD53 and RD54,
[...]
> Looking XT1140 up in my handy POCKET PCRef, I find that the 
> CHS is (917,15,17), and the RD54 (XT2190) is (1224,15,17).
> Formatted capacity 119 Mb, about a third of the way between an RD53 and
> RD54.

If a drive with CHS that doesn't match any normal DEC RDxx drive is
formatted on a VAXstation 2000, will an RQDX3 deal with it properly?

I thought that the drive parameters were *required* to match the DEC
drives.  It's my understanding that the RQDX3 does strange and wondrous
things to figure out what kind of drives are attached.  Are there some
on-disk structures describing the geometry which the controller will
respect?