Groups > linux.debian.user > #207401

Re: Measuring (or calculating) how many bytes are actually written to disk when I repeatedly save a file

From	"Alexander V. Makartsev" <avbetev@gmail.com>
Newsgroups	linux.debian.user
Subject	Re: Measuring (or calculating) how many bytes are actually written to disk when I repeatedly save a file
Date	2019-04-12 22:50 +0200
Message-ID	<xMbhw-oc-15@gated-at.bofh.it> (permalink)
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On 12.04.2019 23:47, Michael Stone wrote:
> On Fri, Apr 12, 2019 at 01:13:49PM -0400, rhkramer@gmail.com wrote:
>> It looks like I am writing something like 20 GB per day
>
> That's basically nothing for a reasonably sized modern SSD.
>
Still the SSD market is having a steady decline in terms of
quality\longevity of NAND based devices.
SSD manufacturers quickly discovered that drives they sell are too good
and last too long.
So now we have TLC-based and QLC-based drives for almost all market
segments, which sold for almost the same price as MLC-based drives were
sold in the past.
Ex. Kingston HyperX FURY [SHFS37A/120G] was produced in 2014 and was
MLC(2bit)-based. It had 3 year warranty and was rated for 354 TBW or
2,69 DWPD.
HyperX Fury RGB [SHFR200/240G] (2019) is now 3D TLC(3bit)-based. It has
same 3 year limited warranty and advertised as 120 TBW or 0,46 DWPD.

Worst offender of this "modern SSD fraud" is Samsung, because he still
says 3D-NAND-V-whatever MLC in advertisements when in fact those drives
are TLC, because TLC NAND is 3bit per cell.
Only recently, Samsung began to add (3bit) to that "3D V-NAND MLC"
phrasing in specifications.
Other manufacturers parroting the same marketing trick and getting away
with it.
And as a result, MLC-based drives almost vanished from
consumer\enthusiast markets because people are happy with TLC and know
no better.

-- 
With kindest regards, Alexander.

⢀⣴⠾⠻⢶⣦⠀ 
⣾⠁⢠⠒⠀⣿⡁ Debian - The universal operating system
⢿⡄⠘⠷⠚⠋⠀ https://www.debian.org
⠈⠳⣄⠀⠀⠀⠀

Thread

Measuring (or calculating) how many bytes are actually written to disk when I repeatedly save a file rhkramer@gmail.com - 2019-04-06 19:40 +0200
  Re: Measuring (or calculating) how many bytes are actually written to  disk when I repeatedly save a file "Alexander V. Makartsev" <avbetev@gmail.com> - 2019-04-06 22:40 +0200
  Re: Measuring (or calculating) how many bytes are actually written to disk when I repeatedly save a file Stefan Monnier <monnier@iro.umontreal.ca> - 2019-04-06 23:50 +0200
    Re: Measuring (or calculating) how many bytes are actually written to  disk when I repeatedly save a file Nicholas Geovanis <nickgeovanis@gmail.com> - 2019-04-07 00:40 +0200
    Re: Measuring (or calculating) how many bytes are actually written  to disk when I repeatedly save a file Curt <curty@free.fr> - 2019-04-07 11:50 +0200
      Re: Measuring (or calculating) how many bytes are actually written  to disk when I repeatedly save a file Curt <curty@free.fr> - 2019-04-07 12:00 +0200
      Re: Measuring (or calculating) how many bytes are actually written to disk when I repeatedly save a file rhkramer@gmail.com - 2019-04-07 15:10 +0200
    Re: Measuring (or calculating) how many bytes are actually written to disk when I repeatedly save a file rhkramer@gmail.com - 2019-04-07 14:20 +0200
      Re: Measuring (or calculating) how many bytes are actually written  to disk when I repeatedly save a file Erik Christiansen <dvalin@internode.on.net> - 2019-04-07 15:00 +0200
      Re: Measuring (or calculating) how many bytes are actually written to disk when I repeatedly save a file Stefan Monnier <monnier@iro.umontreal.ca> - 2019-04-07 18:30 +0200
  Re: Measuring (or calculating) how many bytes are actually written  to disk when I repeatedly save a file Andy Smith <andy@strugglers.net> - 2019-04-07 03:30 +0200
    Re: Measuring (or calculating) how many bytes are actually written to disk when I repeatedly save a file rhkramer@gmail.com - 2019-04-07 15:00 +0200
  Re: [OFF-LIST] Re: Measuring (or calculating) how many bytes are actually written to disk when I repeatedly save a file rhkramer@gmail.com - 2019-04-07 14:00 +0200
  Re: Measuring (or calculating) how many bytes are actually written  to disk when I repeatedly save a file Carles Pina i Estany <carles@pina.cat> - 2019-04-07 22:30 +0200
    Re: Measuring (or calculating) how many bytes are actually written  to disk when I repeatedly save a file Reco <recoverym4n@enotuniq.net> - 2019-04-07 22:30 +0200
      Re: Measuring (or calculating) how many bytes are actually written  to disk when I repeatedly save a file Curt <curty@free.fr> - 2019-04-08 09:50 +0200
        Re: Measuring (or calculating) how many bytes are actually written to disk when I repeatedly save a file rhkramer@gmail.com - 2019-04-08 14:50 +0200
          Re: Measuring (or calculating) how many bytes are actually written to disk when I repeatedly save a file rhkramer@gmail.com - 2019-04-08 15:40 +0200
          Re: Measuring (or calculating) how many bytes are actually written  to disk when I repeatedly save a file Curt <curty@free.fr> - 2019-04-08 15:40 +0200
            Re: Measuring (or calculating) how many bytes are actually written to disk when I repeatedly save a file rhkramer@gmail.com - 2019-04-08 15:50 +0200
              Re: Measuring (or calculating) how many bytes are actually written  to disk when I repeatedly save a file Curt <curty@free.fr> - 2019-04-08 16:20 +0200
                Re: Measuring (or calculating) how many bytes are actually written to disk when I repeatedly save a file rhkramer@gmail.com - 2019-04-08 17:00 +0200
                Re: Measuring (or calculating) how many bytes are actually written to disk when I repeatedly save a file Gene Heskett <gheskett@shentel.net> - 2019-04-08 18:20 +0200
                Re: Measuring (or calculating) how many bytes are actually written  to disk when I repeatedly save a file Curt <curty@free.fr> - 2019-04-08 19:00 +0200
                Re: Measuring (or calculating) how many bytes are actually written to  disk when I repeatedly save a file "Alexander V. Makartsev" <avbetev@gmail.com> - 2019-04-08 19:20 +0200
            Re: Measuring (or calculating) how many bytes are actually written  to disk when I repeatedly save a file Andy Smith <andy@strugglers.net> - 2019-04-12 11:20 +0200
              Re: Measuring (or calculating) how many bytes are actually written  to disk when I repeatedly save a file Curt <curty@free.fr> - 2019-04-12 14:10 +0200
                Re: Measuring (or calculating) how many bytes are actually written to disk when I repeatedly save a file rhkramer@gmail.com - 2019-04-12 19:20 +0200
                Re: Measuring (or calculating) how many bytes are actually written  to disk when I repeatedly save a file Michael Stone <mstone@debian.org> - 2019-04-12 20:50 +0200
                Re: Measuring (or calculating) how many bytes are actually written to  disk when I repeatedly save a file "Alexander V. Makartsev" <avbetev@gmail.com> - 2019-04-12 22:50 +0200
          Re: Measuring (or calculating) how many bytes are actually written to  disk when I repeatedly save a file "Alexander V. Makartsev" <avbetev@gmail.com> - 2019-04-08 15:50 +0200
            Re: Measuring (or calculating) how many bytes are actually written to disk when I repeatedly save a file rhkramer@gmail.com - 2019-04-08 18:00 +0200
      Re: Measuring (or calculating) how many bytes are actually written to disk when I repeatedly save a file rhkramer@gmail.com - 2019-04-08 14:40 +0200
        Re: Measuring (or calculating) how many bytes are actually written to  disk when I repeatedly save a file David <bouncingcats@gmail.com> - 2019-04-08 16:40 +0200

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