Hard disks with > 1024 Cylindars

[John Romkey]

In article <1535 at chinacat.Unicom.COM> chip at chinacat.Unicom.COM (Chip Rosenthal) writes:
>Some ESDI controllers, such as the WD1007, do remapping, and present a
>different disk geometry to the system.  Thus, as far as the system is
>concerned the disk *is* less than 1024 cylinders.

I got bitten by a remapping problem with the WD1007 once. It can remap
up to a maximum of 1024 cylinders, 64 sectors per track and 16 heads.
That multiplies out to a maximum of 512MB, which is sad when you're
using a 660MB disk like I was. Then I discovered that Xenix could deal
with the controller without mapping and still access the entire disk,
and became very, very happy.
-- 
			- john romkey
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