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  • Disk hardware reporting less than rated capacity

    From Henry Law@21:1/5 to All on Mon Nov 29 16:58:52 2021
    I have a hard drive of 500GB capacity. It says so on the outside, and
    its device string when read by linux fdisk or parted contains the string
    "500".

    But lsblk and all partitioning tools report 250GB.

    I remember encountering this problem years ago and tracing it to some
    obscure setting in the microcode which reduced the reported capacity of
    the drive. There was some low-level utility that reset it too. But I've searched the web until my keyboard is red hot and can find nothing: the
    search keeps getting polluted by articles describing how to fix it in the operating system (hidden files, hidden partitions, all that sort of
    stuff). This is nothing to do with the OS: the disk itself is reporting
    half its real size.

    Can anyone help me find out what causes this, and what the tool is that
    fixes it?


    --
    Henry Law n e w s @ l a w s h o u s e . o r g
    Manchester, England

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  • From Marco Moock@21:1/5 to All on Tue Nov 30 12:00:42 2021
    Am Mon, 29 Nov 2021 16:58:52 -0600
    schrieb Henry Law <news@lawshouse.org>:

    Can anyone help me find out what causes this, and what the tool is
    that fixes it?

    Please specify the exact model you have. Check if it has a jumper for
    setting that (some have it).

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  • From Andy Burns@21:1/5 to Henry Law on Tue Nov 30 13:52:49 2021
    Henry Law wrote:

    I have a hard drive of 500GB capacity. It says so on the outside, and
    its device string when read by linux fdisk or parted contains the string "500".

    But lsblk and all partitioning tools report 250GB.

    There have been numerous size limit, track limit, head limits, etc over the years

    <https://tldp.org/HOWTO/Large-Disk-HOWTO-4.html>

    some drives have jumpers to stay just under an applicable limit, what model is it?

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  • From Henry Law@21:1/5 to Andy Burns on Tue Nov 30 08:54:07 2021
    On Tue, 30 Nov 2021 13:52:49 +0000, Andy Burns wrote:

    some drives have jumpers to stay just under an applicable limit, what
    model is it?

    Seagate Barracuda ST3500320AS.

    --
    Henry Law n e w s @ l a w s h o u s e . o r g
    Manchester, England

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  • From David@21:1/5 to Henry Law on Tue Nov 30 15:07:06 2021
    On Tue, 30 Nov 2021 08:54:07 -0600, Henry Law wrote:

    On Tue, 30 Nov 2021 13:52:49 +0000, Andy Burns wrote:

    some drives have jumpers to stay just under an applicable limit, what
    model is it?

    Seagate Barracuda ST3500320AS.

    https://www.seagate.com/gb/en/support/kb/firmware-update-for-st3500320as- st3500620as-st3500820as-st3640330as-st3640530as-st3750330as-st3750630as- st31000340as-207951en/

    This was the first search hit.
    Not sure what the problem was, but worth checking that you are on the
    latest firmware.

    Cheers



    Dave R


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    AMD FX-6300 in GA-990X-Gaming SLI-CF running Windows 7 Pro x64

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