Es geht auch mit OS/2 Boardmitteln, wenn Danis506 geladen ist zeigt dieser beim Booten die CHS-Werte an, geht übrigens mit IBMS506 und /W auch.
Auszug aus der Doku (DANIS506.doc):
3) I have a large (> 33GB) disk but FDISK or LVM report only a fraction of the
true disk capacity. Where does that come from ?
Run "COPY IBMS506$ con:" and look at the geometry values (example):
Model:WDC WD400BB-00AUA1 18.20D18
OS2:log phys BIOS:log BPB:log IDE:log phys Total Sectors
C 4865 65535 16383 65535 16383 Avail 78165360
H 255 16 16 255 16 16 OS2 78156225
S 63 63 63 63 63 63 % Used 99.98
If the "OS2:log" column shows a C value of 65535 then there is most likely
a 16 bit overflow due to a badly chosen translation mode. Presumably, the
H value will be 16 instead of the much more appropriate 255 (or 240).
If you see the same H value in the "BPB:log" column then this is the
translation geometry stored on the disk itself, in the partition table
and/or the BPB sectors. In this case you *must* zero out the partition
table to get rid of this unwise translation mode, a mere change in the BIOS
settings is not sufficient!
If there are only zeroes in the "BPB:log" column, then the disks doesn't
have a valid partition table yet and the translation mode is taken from the
BIOS. Change the BIOS setting to "LBA translation" mode.
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