There are hard disks that do both, as I said, this is just a firmware trick. They are really one type but emulate another for compatibility reasons, behind the scenes they are just 4K and do the 512->4K on the controller, many partition schemes are 4K block size or larger anyway, so it is easy to bundle for the controller but benchmarks show a difference in certain situations.
You need to 'reformat' them with some utility if they are in the wrong setting. Depending on the disk, this could be proprietary, hdparm or sg_format may be able to do it as well:
hdparm --set-sector-size 4096 --please-destroy-my-drive /dev/xxx
You need to 'reformat' them with some utility if they are in the wrong setting. Depending on the disk, this could be proprietary, hdparm or sg_format may be able to do it as well:
hdparm --set-sector-size 4096 --please-destroy-my-drive /dev/xxx
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