Re: [gentoo-user] Re: Finally got a SSD drive to put my OS on

[Mark Knecht <markknecht@gmail.com>]

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On Wed, Apr 19, 2023 at 10:59 AM Dale <rdalek1967@gmail.com> wrote:
>
> Peter Humphrey wrote:
> > On Wednesday, 19 April 2023 09:00:33 BST Nikos Chantziaras wrote:
> >
> >> With my HDD:
> >>
> >>    # smartctl -x /dev/sda | grep -i 'sector size'
> >>    Sector Sizes:     512 bytes logical, 4096 bytes physical
> > Or, with an NVMe drive:
> >
> > # smartctl -x /dev/nvme1n1 | grep -A2 'Supported LBA Sizes'
> > Supported LBA Sizes (NSID 0x1)
> > Id Fmt  Data  Metadt  Rel_Perf
> >  0 +     512       0         0
> >
> > :)
> >
>
> When I run that command, sdd is my SDD drive, ironic I know.  Anyway, it
> doesn't show block sizes.  It returns nothing.
>
> root@fireball / # smartctl -x /dev/sdd  | grep -A2 'Supported LBA Sizes'
> root@fireball / #

Note that all of these technologies, HDD, SDD, M.2, report different things
and don't always report them the same way. This is an SDD in my
Plex backup server:

mark@science:~$ sudo smartctl -x /dev/sdb
[sudo] password for mark:
smartctl 7.2 2020-12-30 r5155 [x86_64-linux-5.15.0-69-generic] (local build)
Copyright (C) 2002-20, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family:     Crucial/Micron Client SSDs
Device Model:     CT250MX500SSD1
Serial Number:    1905E1E79C72
LU WWN Device Id: 5 00a075 1e1e79c72
Firmware Version: M3CR023
User Capacity:    250,059,350,016 bytes [250 GB]
Sector Sizes:     512 bytes logical, 4096 bytes physical

In my case the physical block is 4096 bytes but
addressable in 512 byte blocks. It appears that
yours is 512 byte physical blocks.

[QUOTE]
=== START OF INFORMATION SECTION ===
Model Family:     Samsung based SSDs
Device Model:     Samsung SSD 870 EVO 500GB
Serial Number:    S6PWNXXXXXXXXXXX
LU WWN Device Id: 5 002538 XXXXXXXXXX
Firmware Version: SVT01B6Q
User Capacity:    500,107,862,016 bytes [500 GB]
Sector Size:      512 bytes logical/physica
[QUOTE]

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