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Groups > linux.debian.user > #267127

Re: Unidentified subject!

From Stefan Monnier <monnier@iro.umontreal.ca>
Newsgroups linux.debian.user
Subject Re: Unidentified subject!
Date 2024-02-08 05:30 +0100
Message-ID <I54cV-8Fhu-1@gated-at.bofh.it> (permalink)
References <I4WS5-8AFZ-17@gated-at.bofh.it>
Organization linux.* mail to news gateway

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> Well the 2T memory everybody was curious about 3 weeks ago got here early.
>
> From dmesg after plugging one in:
> [629240.916163] usb 1-2: new high-speed USB device number 39 using xhci_hcd
> [629241.066221] usb 1-2: New USB device found, idVendor=048d,
> idProduct=1234, bcdDevice= 2.00
> [629241.066234] usb 1-2: New USB device strings: Mfr=1, Product=2,
> SerialNumber=3
> [629241.066239] usb 1-2: Product: Disk 3.0
> [629241.066242] usb 1-2: Manufacturer: USB
> [629241.066246] usb 1-2: SerialNumber: 2697241127107725123
> [629241.069485] usb-storage 1-2:1.0: USB Mass Storage device detected
> [629241.074187] scsi host37: usb-storage 1-2:1.0
> [629242.100738] scsi 37:0:0:0: Direct-Access              SSD 3.0    2.00
> PQ: 0 ANSI: 4
> [629242.100959] sd 37:0:0:0: Attached scsi generic sg13 type 0
> [629242.101190] sd 37:0:0:0: [sdm] 4096000000 512-byte logical blocks: (2.10
> TB/1.91 TiB)
> [629242.101289] sd 37:0:0:0: [sdm] Write Protect is off
> [629242.101290] sd 37:0:0:0: [sdm] Mode Sense: 03 00 00 00
> [629242.101409] sd 37:0:0:0: [sdm] No Caching mode page found
> [629242.101410] sd 37:0:0:0: [sdm] Assuming drive cache: write through
> [629242.103927]  sdm: sdm1
> [629242.104047] sd 37:0:0:0: [sdm] Attached SCSI disk
> gene@coyote:
>
> Looks like a reasonable facsimile of a 2T disk to me.

AFAIK the bogus 128TB drives do properly report such ridiculous sizes:
the reality only hits when you try to actually store that amount of
information on them.

[ I'm not sure how it works under the hood, but since SSDs store their
  data "anywhere" in the flash, they can easily pretend to have any size
  they want, and allocate the physical flash blocks only on-the-fly as
  logical blocks are being written.
  Also, some Flash controllers use compression, so if you store data
  that compresses well, they can let you store a lot more than if you
  store already compressed data.  ]

IOW, to really check, try to save 2TB of videos (or other already
compressed data), and then try and read it back.


        Stefan

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Thread

Unidentified subject! gene heskett <gheskett@shentel.net> - 2024-02-07 21:40 +0100
  Re: Unidentified subject! Stefan Monnier <monnier@iro.umontreal.ca> - 2024-02-08 05:30 +0100
    Re: Unidentified subject! gene heskett <gheskett@shentel.net> - 2024-02-10 11:00 +0100
      Re: Unidentified subject! "Thomas Schmitt" <scdbackup@gmx.net> - 2024-02-10 11:40 +0100
        shred bug? [was: Unidentified subject!] <tomas@tuxteam.de> - 2024-02-10 13:50 +0100
          Re: shred bug? [was: Unidentified subject!] tomas@tuxteam.de - 2024-02-10 14:00 +0100
            Re: shred bug? "Thomas Schmitt" <scdbackup@gmx.net> - 2024-02-10 15:00 +0100
              Re: shred bug? <tomas@tuxteam.de> - 2024-02-10 15:40 +0100
          Re: shred bug? Gremlin <scott-andrews@columbus.rr.com> - 2024-02-10 14:40 +0100
          Re: shred bug? "Thomas Schmitt" <scdbackup@gmx.net> - 2024-02-10 14:40 +0100
          Re: shred bug? [was: Unidentified subject!] David Christensen <dpchrist@holgerdanske.com> - 2024-02-11 01:10 +0100
            Re: shred bug? [was: Unidentified subject!] Greg Wooledge <greg@wooledge.org> - 2024-02-11 01:20 +0100
              Re: shred bug? [was: Unidentified subject!] David Christensen <dpchrist@holgerdanske.com> - 2024-02-11 01:30 +0100
                Re: shred bug? [was: Unidentified subject!] debian-user@howorth.org.uk - 2024-02-11 14:00 +0100
                Re: shred bug? "Thomas Schmitt" <scdbackup@gmx.net> - 2024-02-11 14:30 +0100
              Re: shred bug? [was: Unidentified subject!] <tomas@tuxteam.de> - 2024-02-11 08:10 +0100
                Re: shred bug? [was: Unidentified subject!] Greg Wooledge <greg@wooledge.org> - 2024-02-11 15:40 +0100
                Re: shred bug? [was: Unidentified subject!] <tomas@tuxteam.de> - 2024-02-11 15:50 +0100
                Re: shred bug? [was: Unidentified subject!] Greg Wooledge <greg@wooledge.org> - 2024-02-11 16:00 +0100
                Re: shred bug? [was: Unidentified subject!] <tomas@tuxteam.de> - 2024-02-11 16:00 +0100
                Re: shred bug? [was: Unidentified subject!] Greg Wooledge <greg@wooledge.org> - 2024-02-12 18:00 +0100
                Re: shred bug? [was: Unidentified subject!] Curt <curty@free.fr> - 2024-02-12 18:00 +0100
                Re: shred bug? [was: Unidentified subject!] David Christensen <dpchrist@holgerdanske.com> - 2024-02-12 22:00 +0100
                Re: shred bug? [was: Unidentified subject!] "Thomas Schmitt" <scdbackup@gmx.net> - 2024-02-12 22:10 +0100
                Re: shred bug? [was: Unidentified subject!] <tomas@tuxteam.de> - 2024-02-13 06:50 +0100
                Re: shred bug? [was: Unidentified subject!] David Wright <deblis@lionunicorn.co.uk> - 2024-02-11 16:30 +0100
                Re: shred bug? [was: Unidentified subject!] Greg Wooledge <greg@wooledge.org> - 2024-02-13 13:20 +0100
                Re: shred bug? [was: Unidentified subject!] Greg Wooledge <greg@wooledge.org> - 2024-02-13 13:40 +0100
                Re: shred bug? [was: Unidentified subject!] <tomas@tuxteam.de> - 2024-02-13 13:50 +0100
                Re: shred bug? [was: Unidentified subject!] "Thomas Schmitt" <scdbackup@gmx.net> - 2024-02-13 14:00 +0100
                Re: shred bug? [was: Unidentified subject!] David Wright <deblis@lionunicorn.co.uk> - 2024-02-13 16:40 +0100
                Re: shred bug? [was: Unidentified subject!] Greg Wooledge <greg@wooledge.org> - 2024-02-13 17:30 +0100
                Re: shred bug? [was: Unidentified subject!] debian-user@howorth.org.uk - 2024-02-13 18:50 +0100
                Re: shred bug? [was: Unidentified subject!] David Christensen <dpchrist@holgerdanske.com> - 2024-02-13 22:10 +0100
                Re: shred bug? [was: Unidentified subject!] <tomas@tuxteam.de> - 2024-02-14 06:50 +0100
                Re: shred bug? [was: Unidentified subject!] "Thomas Schmitt" <scdbackup@gmx.net> - 2024-02-13 19:00 +0100
                Re: shred bug? [was: Unidentified subject!] Greg Wooledge <greg@wooledge.org> - 2024-02-13 20:00 +0100
                Re: shred bug? [was: Unidentified subject!] "Thomas Schmitt" <scdbackup@gmx.net> - 2024-02-13 20:40 +0100
                Re: shred bug? [was: Unidentified subject!] gene heskett <gheskett@shentel.net> - 2024-02-13 20:40 +0100
                Re: shred bug? [was: Unidentified subject!] "Thomas Schmitt" <scdbackup@gmx.net> - 2024-02-13 20:50 +0100
                Re: shred bug? [was: Unidentified subject!] gene heskett <gheskett@shentel.net> - 2024-02-13 21:30 +0100
                Re: shred bug? [was: Unidentified subject!] David Christensen <dpchrist@holgerdanske.com> - 2024-02-13 22:10 +0100
                Re: shred bug? [was: Unidentified subject!] gene heskett <gheskett@shentel.net> - 2024-02-13 22:50 +0100
                Re: shred bug? [was: Unidentified subject!] David Wright <deblis@lionunicorn.co.uk> - 2024-02-15 06:40 +0100
                Re: shred bug? [was: Unidentified subject!] David Christensen <dpchrist@holgerdanske.com> - 2024-02-11 23:50 +0100
                Re: shred bug? [was: Unidentified subject!] Max Nikulin <manikulin@gmail.com> - 2024-02-13 03:40 +0100
                Re: shred bug? [was: Unidentified subject!] "Thomas Schmitt" <scdbackup@gmx.net> - 2024-02-11 16:30 +0100
                Re: shred bug? [was: Unidentified subject!] Michael Stone <mstone@debian.org> - 2024-02-16 16:00 +0100
        Re: Unidentified subject! gene heskett <gheskett@shentel.net> - 2024-02-10 18:50 +0100
          Re: Unidentified subject! "Thomas Schmitt" <scdbackup@gmx.net> - 2024-02-10 19:40 +0100
            Re: Unidentified subject! gene heskett <gheskett@shentel.net> - 2024-02-10 20:30 +0100
            Re: Unidentified subject! David Christensen <dpchrist@holgerdanske.com> - 2024-02-11 00:50 +0100
              Re: Unidentified subject! "Thomas Schmitt" <scdbackup@gmx.net> - 2024-02-11 09:10 +0100
                Re: Unidentified subject! David Christensen <dpchrist@holgerdanske.com> - 2024-02-11 21:50 +0100
        Re: Unidentified subject! David Christensen <dpchrist@holgerdanske.com> - 2024-02-11 00:40 +0100
          Re: Unidentified subject! "Thomas Schmitt" <scdbackup@gmx.net> - 2024-02-11 09:20 +0100
            Re: Unidentified subject! David Christensen <dpchrist@holgerdanske.com> - 2024-02-11 11:10 +0100
              Fast Random Data Generation (Was: Re: Unidentified subject!) Linux-Fan <Ma_Sys.ma@web.de> - 2024-02-11 11:30 +0100
                Re: Fast Random Data Generation "Thomas Schmitt" <scdbackup@gmx.net> - 2024-02-11 12:30 +0100
                Re: Fast Random Data Generation (Was: Re: Unidentified subject!) Gremlin <scott-andrews@columbus.rr.com> - 2024-02-11 13:20 +0100
                Re: Fast Random Data Generation (Was: Re: Unidentified subject!) David Christensen <dpchrist@holgerdanske.com> - 2024-02-12 07:20 +0100
                Re: Fast Random Data Generation (Was: Re: Unidentified subject!) Linux-Fan <Ma_Sys.ma@web.de> - 2024-02-12 17:40 +0100
                Re: Fast Random Data Generation (Was: Re: Unidentified subject!) David Christensen <dpchrist@holgerdanske.com> - 2024-02-12 22:30 +0100
                Re: Fast Random Data Generation (Was: Re: Unidentified subject!) Linux-Fan <Ma_Sys.ma@web.de> - 2024-02-13 18:40 +0100
                Re: Fast Random Data Generation (Was: Re: Unidentified subject!) Jeffrey Walton <noloader@gmail.com> - 2024-02-12 22:30 +0100
              Re: Unidentified subject! "Thomas Schmitt" <scdbackup@gmx.net> - 2024-02-11 12:20 +0100
                Re: Unidentified subject! Jeffrey Walton <noloader@gmail.com> - 2024-02-11 16:20 +0100
                Re: Unidentified subject! David Christensen <dpchrist@holgerdanske.com> - 2024-02-11 23:00 +0100
      Re: Unidentified subject! Stefan Monnier <monnier@iro.umontreal.ca> - 2024-02-10 15:40 +0100
  Things I don't touch with a 3.048m barge pole: USB storage (Was Re:  Unidentified subject!) Andy Smith <andy@strugglers.net> - 2024-02-08 16:40 +0100
    Re: Things I don't touch with a 3.048m barge pole: USB storage (Was  Re: Unidentified subject!) Gremlin <scott-andrews@columbus.rr.com> - 2024-02-08 17:20 +0100
      Re: Things I don't touch with a 3.048m barge pole: USB storage (Was  Re: Unidentified subject!) Andy Smith <andy@strugglers.net> - 2024-02-08 17:30 +0100
      Re: Things I don't touch with a 3.048m barge pole: USB storage  (WasRe: Unidentified subject!) gene heskett <gheskett@shentel.net> - 2024-02-09 09:50 +0100
    Re: Things I don't touch with a 3.048m barge pole: USB storage (Was  Re: Unidentified subject!) Ralph Aichinger <ra@h5.or.at> - 2024-02-08 18:00 +0100
      Re: Things I don't touch with a 3.048m barge pole: USB storage (Was  Re: Unidentified subject!) Jeffrey Walton <noloader@gmail.com> - 2024-02-08 20:30 +0100
        Re: Things I don't touch with a 3.048m barge pole: USB storage (Was  Re: Unidentified subject!) Andy Smith <andy@strugglers.net> - 2024-02-08 21:50 +0100
        Re: Things I don't touch with a 3.048m barge pole: USB storage (Was  Re: Unidentified subject!) Andy Smith <andy@strugglers.net> - 2024-02-08 21:50 +0100
          Re: Things I don't touch with a 3.048m barge pole: USB storage (Was  Re: Unidentified subject!) Gremlin <scott-andrews@columbus.rr.com> - 2024-02-08 22:00 +0100
            Re: Things I don't touch with a 3.048m barge pole: USB storage (Was  Re: Unidentified subject!) Andy Smith <andy@strugglers.net> - 2024-02-08 22:20 +0100
              Re: Things I don't touch with a 3.048m barge pole: USB storage (Was  Re: Unidentified subject!) Andy Smith <andy@strugglers.net> - 2024-02-08 22:30 +0100
                Re: Things I don't touch with a 3.048m barge pole: USB storage (Was  Re: Unidentified subject!) Gremlin <scott-andrews@columbus.rr.com> - 2024-02-08 23:10 +0100
              Re: Things I don't touch with a 3.048m barge pole: USB storage (Was  Re: Unidentified subject!) Gremlin <scott-andrews@columbus.rr.com> - 2024-02-08 22:30 +0100
          Re: Things I don't touch with a 3.048m barge pole: USB storage  (WasRe: Unidentified subject!) gene heskett <gheskett@shentel.net> - 2024-02-09 14:00 +0100
            Re: Things I don't touch with a 3.048m barge pole "Thomas Schmitt" <scdbackup@gmx.net> - 2024-02-09 14:50 +0100
            Re: Things I don't touch with a 3.048m barge pole: USB storage  (WasRe: Unidentified subject!) David Christensen <dpchrist@holgerdanske.com> - 2024-02-10 07:00 +0100
              Re: Things I don't touch with a 3.048m barge pole: USB storage(WasRe:  Unidentified subject!) gene heskett <gheskett@shentel.net> - 2024-02-10 18:40 +0100
      Re: Things I don't touch with a 3.048m barge pole: USB storage (Was  Re: Unidentified subject!) Andy Smith <andy@strugglers.net> - 2024-02-08 21:40 +0100
        Re: Things I don't touch with a 3.048m barge pole: USB storage (Was  Re: Unidentified subject!) Arno Lehmann <al@its-lehmann.de> - 2024-02-09 09:50 +0100
    Re: Things I don't touch with a 3.048m barge pole: USB storage (Was  Re: Unidentified subject!) Max Nikulin <manikulin@gmail.com> - 2024-02-08 18:30 +0100
      Re: Things I don't touch with a 3.048m barge pole: USB storage (Was  Re: Unidentified subject!) Andy Smith <andy@strugglers.net> - 2024-02-08 21:40 +0100
        Re: Things I don't touch with a 3.048m barge pole: USB storage (Was  Re: Unidentified subject!) Gremlin <scott-andrews@columbus.rr.com> - 2024-02-08 22:10 +0100
          Re: Things I don't touch with a 3.048m barge pole: USB storage (Was  Re: Unidentified subject!) Andy Smith <andy@strugglers.net> - 2024-02-08 22:20 +0100
  Re: Unidentified subject! Richmond <dnomhcir@gmx.com> - 2024-02-08 23:50 +0100
    Re: Unidentified subject! Stefan Monnier <monnier@iro.umontreal.ca> - 2024-02-09 00:10 +0100
      Re: Unidentified subject! Charles Curley <charlescurley@charlescurley.com> - 2024-02-09 00:50 +0100
        Re: Unidentified subject! Richmond <dnomhcir@gmx.com> - 2024-02-09 05:50 +0100
          Re: Unidentified flying subject! Charles Curley <charlescurley@charlescurley.com> - 2024-02-09 07:50 +0100
            Re: Unidentified flying subject! Richmond <dnomhcir@gmx.com> - 2024-02-09 14:20 +0100

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