The internal organization of drives is completely abstracted away from the user and operating system, it is instead addressed by logical sector/block numbers (LBA) from the beginning to the end of the disk.
Modern drives have sector remapping capabilities to deal with the possibility of bad sectors, so there is no guarantee that logical and physical mappings are 1:1.
CHS notation is obsolete, and you really have no idea about disk actual geometry anymore.. it doesn't matter.
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