DdB composed on 2023-02-16 09:15 (UTC+0100):
> Felix Miata wrote:
>> What physical boundaries do SSDs have to report? All I know about that are
>> exposed
>> are sector size and sector count. I have yet to find one where
>> logical/physical
>> were not 512B/512B.
> That is what i meant: nowadays SSD's at least are AF Advanced Format =
> 4KB sector size), but even much more than that. Do not trust the values
> reported but check documentation properly. 512B is only virtual
> (sometimes called 512e - for emulated).
You have it backwards. All HDDs tooled since 2011 are advanced format with 4k
physical sectors. e.g.
# parted /dev/sdb print | head
Model: ATA ST1000DM003-1CH1 (scsi)
Disk /dev/sdb: 1000GB
Sector size (logical/physical): 512B/4096B
Partition Table: gpt
Disk Flags:
Number Start End Size File system Name
Flags
1 1049kB 420MB 419MB ST1jh6e reserved
2 420MB 756MB 336MB ST1jh6e realboot backup template
3 756MB 1092MB 336MB ST1jh6e realboot
None of the 25 or so SSDs/NVMEs I have have 4k sectors. e.g.
# parted -l | head
Model: ATA TEAM T253X2256G (scsi)
Disk /dev/sda: 256GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:
Number Start End Size File system Name
Flags
1 1049kB 337MB 336MB fat32 TG1P01 EFI System (ESP) T253X
2295 boot, esp
2 337MB 1885MB 1549MB linux-swap(v1) TG1P02 Linux Swap
swap
3 1885MB 2305MB 419MB ext2 TG1P03 Linux reservation
--
Evolution as taught in public schools is, like religion,
based on faith, not based on science.
Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!
Felix Miata
