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Re: Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD

From piorunz <piorunz@gmx.com>
Newsgroups linux.debian.user
Subject Re: Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD
Date 2021-12-09 17:20 +0100
Message-ID <Dsujg-36l-7@gated-at.bofh.it> (permalink)
References <Ds67g-4Z6-7@gated-at.bofh.it> <Dsfkd-25F-5@gated-at.bofh.it> <DsoQy-8eY-13@gated-at.bofh.it> <DstwR-2AP-1@gated-at.bofh.it>
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On 09/12/2021 15:22, Alexander V. Makartsev wrote:

> "Crucial MX500 250GB" is based on a NAND 3D TLC-3bit¹ ICs and rated only
> 100TBW.
> That is a relatively small amount, if you compare it to the devices I
> was talking about.
> Now if you take 12% for 2 years of 100TBW drive, which may look like a
> lot at a first glance and calculate the difference (300TBW / 100TBW = 3;
> 12 / 3 = 4), it won't look too off from what I've got in the SMART readings.
> So now let's assume you will continue to use your SSDs like before, it
> would take roughly 14 years more (12% / 2 years = 6% per year; 100 / 6 =
> 16) of continuous use to wear out.
> That's way past their warranty period and by reaching that time they
> already paid for themselves.

I monitor SMART very closely.

*SMART data:*
Device Model: CT250MX500SSD1
Power On: 18188 hours
Temperature: 38 °C
Reported Uncorrectable: 0
Offline Uncorrectable: 0
Reallocated NAND Blocks: 0
Unused Reserve NAND Blocks: 31
Life Used: 12%
Total Written: 12 TiB

Device Model: CT250MX500SSD1
Power On: 15601 hours
Temperature: 35 °C
Reported Uncorrectable: 0
Offline Uncorrectable: 0
Reallocated NAND Blocks: 0
Unused Reserve NAND Blocks: 28
Life Used: 12%
Total Written: 13 TiB

Since I use only part of the drive now, and rest is not partitioned,
drive sees this and recognizes as overprovisioning. Wear levelling
mechanisms can use this surface, drive doesn't need to remember states
of cells in this region. I might be wrong, but that's what happening I
think.
Since I did that, writes have stopped. Debian is running on these
drives, / partition, /home and /var are elsewhere. Nothing is happening
on these drives apart from apt updates sometimes. Usage didn't changed
With overprovisioning enabled now, I can easily run with drives in mint
condition for many years without worry.

--
With kindest regards, Piotr.

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

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Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD "Jorge P. de Morais Neto" <jorge+list@disroot.org> - 2021-12-08 15:30 +0100
  Re: Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD piorunz <piorunz@gmx.com> - 2021-12-08 16:00 +0100
    Re: Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD Jorge P. de Morais Neto <jorge+list@disroot.org> - 2021-12-08 20:40 +0100
      Re: Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD piorunz <piorunz@gmx.com> - 2021-12-09 00:00 +0100
        Re: Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD Jorge P. de Morais Neto <jorge+list@disroot.org> - 2022-01-02 17:40 +0100
          Re: Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD piorunz <piorunz@gmx.com> - 2022-01-03 00:40 +0100
            Re: Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD Jorge P. de Morais Neto <jorge+list@disroot.org> - 2022-01-03 12:50 +0100
              Re: Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD Michael Stone <mstone@debian.org> - 2022-01-03 16:20 +0100
                Re: Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD Dan Ritter <dsr@randomstring.org> - 2022-01-03 17:00 +0100
                Re: Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD Michael Stone <mstone@debian.org> - 2022-01-03 19:30 +0100
                Re: Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD Jorge P. de Morais Neto <jorge+list@disroot.org> - 2022-01-04 01:00 +0100
                Re: Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD Michael Stone <mstone@debian.org> - 2022-01-04 19:20 +0100
      Re: Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD piorunz <piorunz@gmx.com> - 2021-12-09 14:30 +0100
  Re: Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD "Alexander V. Makartsev" <avbetev@gmail.com> - 2021-12-09 01:20 +0100
    Re: Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD Andy Smith <andy@strugglers.net> - 2021-12-09 02:10 +0100
      Re: Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD Jorge P. de Morais Neto <jorge+list@disroot.org> - 2021-12-15 15:50 +0100
        Re: Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD Andy Smith <andy@strugglers.net> - 2021-12-16 04:30 +0100
    Re: Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD piorunz <piorunz@gmx.com> - 2021-12-09 11:30 +0100
      Re: Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD "Alexander V. Makartsev" <avbetev@gmail.com> - 2021-12-09 16:30 +0100
        Re: Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD piorunz <piorunz@gmx.com> - 2021-12-09 17:20 +0100
          Re: Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD piorunz <piorunz@gmx.com> - 2021-12-09 18:30 +0100
    Re: Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD Jorge P. de Morais Neto <jorge+list@disroot.org> - 2021-12-15 15:40 +0100
  Re: Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD David Christensen <dpchrist@holgerdanske.com> - 2021-12-09 07:10 +0100
    Re: Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD Jorge P. de Morais Neto <jorge+list@disroot.org> - 2021-12-14 18:50 +0100
      Re: Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD David Christensen <dpchrist@holgerdanske.com> - 2021-12-15 03:50 +0100
        Re: Why MBR partitioning (was: Reasonably simple setup for 1...) Felix Miata <mrmazda@earthlink.net> - 2021-12-15 04:00 +0100
          Re: Why MBR partitioning (was: Reasonably simple setup for 1...) David Christensen <dpchrist@holgerdanske.com> - 2021-12-15 05:20 +0100
          Re: Why MBR partitioning (was: Reasonably simple setup for 1...) "Thomas Schmitt" <scdbackup@gmx.net> - 2021-12-15 09:10 +0100
  Re: Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD Anssi Saari <as@sci.fi> - 2021-12-09 10:40 +0100
    Re: Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD Dan Ritter <dsr@randomstring.org> - 2021-12-09 13:10 +0100
    Re: Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD Jorge P. de Morais Neto <jorge+list@disroot.org> - 2021-12-14 18:40 +0100
      Re: Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD Andrei POPESCU <andreimpopescu@gmail.com> - 2021-12-15 21:30 +0100
  Re: Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD "hdv@gmail" <hdv.jadev@gmail.com> - 2021-12-09 15:10 +0100
    Re: Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD Dan Ritter <dsr@randomstring.org> - 2021-12-09 16:10 +0100
      Re: Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD "hdv@gmail" <hdv.jadev@gmail.com> - 2021-12-09 16:50 +0100
        Re: Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD Curt <curty@free.fr> - 2021-12-09 18:30 +0100
          Re: Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD David Wright <deblis@lionunicorn.co.uk> - 2021-12-10 06:00 +0100
            Re: Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD Darac Marjal <mailinglist@darac.org.uk> - 2021-12-10 10:30 +0100
      Re: Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD Stefan Monnier <monnier@iro.umontreal.ca> - 2021-12-10 05:10 +0100
      Re: Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD Andrei POPESCU <andreimpopescu@gmail.com> - 2021-12-10 10:40 +0100
        Re: Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD Dan Ritter <dsr@randomstring.org> - 2021-12-10 13:40 +0100
          Re: Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD Andrei POPESCU <andreimpopescu@gmail.com> - 2021-12-10 14:00 +0100
            Re: Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD Dan Ritter <dsr@randomstring.org> - 2021-12-10 15:10 +0100
              Re: Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD Charles Curley <charlescurley@charlescurley.com> - 2021-12-11 02:10 +0100
                Re: Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD "Andrew M.A. Cater" <amacater@einval.com> - 2021-12-11 12:30 +0100
          Re: Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD Darac Marjal <mailinglist@darac.org.uk> - 2021-12-10 14:20 +0100
    Re: Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD Jorge P. de Morais Neto <jorge+list@disroot.org> - 2021-12-15 16:00 +0100
      Re: Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD "hdv@gmail" <hdv.jadev@gmail.com> - 2021-12-15 16:30 +0100

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