How to use/select physical sector size?

Hi, all.

I heard earlier version DC series SSD reports is 512B of physical sector size.

But my firmware updated SSD reports 4K physical size.

Recently update in 3.2.1, SSD DC S3700 and S3500 have following change.

-Support for both 512B and 4KB physical sector size

How to use 512B physical sector size force, like older version?

thank you.