Here to document the SSDs i came acorss regarding their support to 4K block size.

The context is that while the majority of NAND uses 4K page size at the lowest level, many SSDs still expose itself as 512-byte sector size. NVMe has an optional feature to toggle the device between different block size, but information regarding this feature isn't easily available from vendors. That means some SSDs can be set to show 4K sector size to OS, some cannot.

nvme-cli command used:

dev=/dev/nvme0n1; sudo sh -c "\
    nvme id-ctrl $dev | \
    grep '^\(mn\|fr\)\s' ; \
    nvme id-ns -H $dev | grep '^LBA'"

Sample output:

root:~# dev=/dev/nvme0n1; sudo sh -c "\
>     nvme id-ctrl $dev | \
>     grep '^\(mn\|fr\)\s' ; \
>     nvme id-ns -H $dev | grep '^LBA'"
mn        : Samsung SSD 980 PRO with Heatsink 2TB
fr        : 5B2QGXA7
LBA Format  0 : Metadata Size: 0   bytes - Data Size: 512 bytes - Relative Performance: 0 Best (in use)

Table

SSD Name	FW Version	LBA supports	note
Samsung SSD 980 PRO with Heatsink 2TB	5B2QGXA7	512B + 0
CT2000P5PSSD8	P7CR403	512B + 0	Crucial P5 Plus 2TB
Samsung SSD 970 EVO 1TB	2B2QEXE7	512B + 0

feiyax/ssd_nvme_4kn_support.md

Table