Re: Unidentified subject!

["Thomas Schmitt" <scdbackup@gmx.net>]

Hi,

i wrote:
> > In the other thread about the /dev/sdm test:
Gene Heskett wrote:
> > > Creating file 39.h2w ... 1.98% -- 1.90 MB/s -- 257:11:32
> > > [...]
> > > $ sudo f3probe --destructive --time-ops /dev/sdm
> > > Bad news: The device `/dev/sdm' is a counterfeit of type limbo
> > > Device geometry:
> > >                  *Usable* size: 59.15 GB (124050944 blocks)
> > >                 Announced size: 1.91 TB (4096000000 blocks)

David Christensen wrote:
> Which other thread?  Please provide a URL to archived post.

[🔎] e7a0c1a1-f973-4007-a86d-8d91d8d915aa@shentel.net">https://lists.debian.org/msgid-search/[🔎] e7a0c1a1-f973-4007-a86d-8d91d8d915aa@shentel.net
[🔎] b566504b-5677-4d84-b5b3-b0de632304b6@shentel.net">https://lists.debian.org/msgid-search/[🔎] b566504b-5677-4d84-b5b3-b0de632304b6@shentel.net


> So, the 2 TB USB SSD's are really scam 64 GB devices?

The manufacturer would probably state that it's no intentional scam but
just poor product quality. (Exploiting Hanlon's Razor.)

It might be intentional that the write speed gets slower and slower as
the end of the usable area is approached. This avoids the need for
confessing the failure to the operating system.
But it might also be an honest attempt of the disk's firmware to find
some blocks which can take and give back the arriving data.


Have a nice day :)

Thomas