====== 4k sectors ======

[[https://wiki.archlinux.org/title/Advanced_Format#Setting_native_sector_size|]]

<code bash>
# lsblk -td
NAME    ALIGNMENT MIN-IO OPT-IO PHY-SEC LOG-SEC ROTA SCHED RQ-SIZE  RA WSAME
sda             0   4096      0    4096     512    1 none       32 128    0B
sdb             0   4096      0    4096     512    1 none       32 128    0B
nvme0n1         0  16384 131072     512     512    0 kyber     256 256    0B
</code>

<code>
Node                  Generic               SN                   Model                                    Namespace Usage                      Format           FW Rev  
--------------------- --------------------- -------------------- ---------------------------------------- --------- -------------------------- ---------------- --------
/dev/nvme0n1          /dev/ng0n1            ???????????????      Samsung SSD 980 1TB                      1           0,00   B /   1,00  TB    512   B +  0 B   2B4QFXO7

# nvme id-ns -H /dev/nvme0n1 | grep "Relative Performance"
LBA Format  0 : Metadata Size: 0   bytes - Data Size: 512 bytes - Relative Performance: 0 Best (in use)
</code>

<code bash>
# nvme id-ns /dev/nvme0n1
...
lbaf  0 : ms:0   lbads:9  rp:0 (in use)
</code>

about which the wiki page says

    It has an lbads (LBA data size) of 9, which means sectors are 2^9 or 512 bytes. If the device is capable of 4 KiB sectors, there will be another entry here with an lbads of 12.
    
    
<code bash>
# smartctl -c /dev/nvme0n1
Supported LBA Sizes (NSID 0x1)
Id Fmt  Data  Metadt  Rel_Perf
 0 +     512       0         0
</code>

===== firmware =====

Samsung SSD 980 1TB firmware 2B4QFXO7

[[https://semiconductor.samsung.com/consumer-storage/support/tools/]]

  - Download [[https://download.semiconductor.samsung.com/resources/software-resources/Samsung_SSD_980_3B4QFXO7.iso|Samsung_SSD_980_3B4QFXO7.iso]]
  - unpack gzip cpio and go to ''/root/fumagician''
  - run ''sudo ./fumagician''
    - NOTE: will reboot at end !!!