Which problems can appear with HDDs large than 128 GB?
The main problem with those HDDs is that they use a new sector addressing protocol. The old one allows the system to address up to 228=268,435,456 sectors which corresponds to a disk capacity equal to 137,438,953,472 bytes, or 128 GB. The new protocol LBA48 uses the 48-bit address, the maximum HDD capacity being 281,474,976,710,656 sectors. If the BIOS or OS driver (depending on which software module translates application requests into the commands of HDD’s hardware controller) supports only the 28-bit addressing, the higher bits in the address are ignored when an area above 128 GB is addressed. As the result, the HDD controller will address sector N-268,435,456 rather than sector N. If that is a read command, data will be read from a wrong disk area, if that is a write command, new data will be overwritten above the old one in sector N-268,435,456. Actually that damages data in the beginning of the disk space, most likely, in the partition table and first logical disk. Such damage ma
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